11. Lang withdrew half of his money from his
bank account on the last day of January.
Then he withdrew half of the remaining
amount on the last day of February. He
continued withdrawing half of his money
on the last day of March, April, May, and
June. His final balance was $1.50. How
much money did Lang have in his bank
account before his first withdrawal?

Answers

Answer 1

Land withdrew money in the form of an geometric series and he had $96 in his account in January.

A geometric series in mathematics is made up of an unlimited number of terms with a fixed ratio between them.

Each term is connected to the previous term by a simple ratio.

if the first term of an Geometric series be a, and the common ratio r then the second term is ar, third term is ar² and so on.

the nth term of a  Geometric series is calculated by

[tex]a_n=ar^{n-1}[/tex]

Now here we know that the final term of the Geometric series is $1.50.

So each month Lang withdrew half of his money.

So the common ratio of each terms is [tex]\frac{1}{2}[/tex].

Number of months=6(n=7)

Now we have to find the initial term of the Geometric series.

We know that [tex]a_n=ar^{n-1}\\[/tex]

Given n=7 and r=1/2 and aₙ=1.5

Substituting the values we get:

[tex]1.5=a\times(\frac{1}{2})^{7-1} \\or, 1.5=a \times (\frac{1}{2} )^6\\or, 1.5=a\times \frac{1}{64} \\or,a=96[/tex]

Hence Lang had $96 in his bank account before his first withdrawal.

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Related Questions

in 2008, the world record for swimming the 50 m style event was 21.3 four seconds supposing the athlete swim at a con stamp rate what was his speed round your answer to the nearest hundredth.

Answers

Athlete swam at a constant rate, his speed in m/s is 2.343 m/s

What is Speed?

The pace at which a distance changes over time is referred to as speed. It has a dimension of time-distance. As a result, the fundamental unit of time and the basic unit of distance are combined to form the SI unit of speed. Thus, the metre per second (m/s) is the SI unit of speed.

The formula for speed is as straightforward as dividing a distance by a time. We may define speed as the rate of change of position of an item in any direction by taking the distance traveled and dividing it by the time.

Given,

the distance covered = 50m

total time taken = 21.34s

Speed = distance / Time

speed = 50/ 21.34

speed = 2.343 m/s

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how to solve 4x² -12x

Answers

Answer:

[tex]4x\left(x-3\right)[/tex]

Step-by-step explanation:

[tex]x^{y+z}=x^yx^z\\x^2=xx\\=4xx-12x\\=4xx-4\cdot \:3x\\=4x\left(x-3\right)[/tex]

Solve the system of inequalities

Answers

Answer:

1. x < 4

2. x > 1

3. x < 5

Step-by-step explanation:


find the distance between each pair of points.
F(3,6), G(7,-4)

Answers

Answer:  the distance is (4,2)

Step-by-step explanation: it takes from 3 to seven 4 1s. and 6 -4 will be 2

hope this helps

five and three-tenths times a number plus two and seven-tenths is less than three and three-tenths times a number plus one and six-tenths​

Answers

The number according to the given statement is x<-0.55.

Given the statement is five and three-tenths times a number plus two and seven-tenths is less than three and three-tenths times a number plus one and six-tenths​.

A mathematical statement is a meaningful component of words that can be true or false. Simply, they are known as a statement.

Let us assume the given number be x.

According to the given statement,

Five and three-tenths of a number means 5.3x.

And two and seven-tenths means 2.7.

So, five and three-tenths times a number plus two and seven-tenths means 5.3x+2.7.                ......(1)

It is also given that three and three-tenths times a number means is 3.3x.      

And one and six-tenths means 1.6.

So, three and three-tenths times a number plus one and six-tenths​ means 3.3x+1.6         .......(2)

Now, we will substitute equation (1) less than equation (2) according to the given statement is

5.3x+2.7<3.3x+1.6

Further, we will subtract 2.7 from both sides, we get

5.3x+2.7-2.7<3.3x+1.6-2.7

5.3x<3.3x-1.1

Now, we will subtract 3.3x from both sides, we get

5.3x-3.3x<3.3x-1.1-3.3x

2x<-1.1

Now, we will divide both sides by 2, we get

2x/2<-1.1/2

x<-0.55

Hence, the number for the given statement "five and three-tenths times a number plus two and seven-tenths is less than three and three-tenths times a number plus one and six-tenths​" is -0.55.

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Given f(x)= 3(2−x), what is the value of f(−4)?

Answers

The value of f(-4) is 18 because

3(2+4)

6+12=18


Solve each equation. Check each solution. 2a + 1 / 6 + a/2= a-1/3

Answers

The solution of the given equation 2a + 1 / 6 + a/2 = a-1/3 is a = -1

In this question, we have been given an equation.

[tex]\frac{2a+1}{6}+\frac{a}{2} = \frac{a-1}{3}[/tex]

We need to find the solution of given equation.

[tex]\Rightarrow \frac{2a+1}{6}+\frac{a}{2} = \frac{a-1}{3}\\\\\Rightarrow \frac{2(2a+1)+6a}{12}=\frac{a-1}{3}\\\\\Rightarrow \frac{4a+2+6a}{12}=\frac{a-1}{3}\\\\ \Rightarrow \frac{10a+2}{4}=a-1\\\\\Rightarrow 10a+2=4a-4\\\\\Rightarrow 6a=-6\\\\\Rightarrow a=-1[/tex]

We need to check above solution.

Substitute a = -1 in LHS of given equation.

2a + 1 / 6 + a/2

= [2(-1) + 1 / 6] + [-1/2]

= (-1/6 - 1/2)

= -(4/6)

= -2/3

Substitute a = -1 in RHS of given equation.

a-1/3

= (-1 - 1)/3

= - 2/3

So, LHS = RHS

Therefore, the solution of the given equation 2a + 1 / 6 + a/2 = a-1/3 is      a = -1

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the value of 97 - 2 x (16-4)?​

Answers

Answer:

73

Step-by-step explanation:

97 - 2 × (16 - 4) ← evaluate parenthesis

= 97 - 2 × 12 ← evaluate multiplication

= 97 - 24 ← evaluate subtraction

= 73

Answer:

73

Step-by-step explanation:

97 - 2 x (16-4) =

97 - 2 x (12) =

97 - 24 =

73


State the property that justifies each statement.
If x/2=7 , then x=14 .

Answers

According to the given data  the property justifies statement is: Multiplication Property of Equality.

What is the Equality Multiplication Property?

According to the Multiplication Property for Equations, an equation can be multiplied as well as divided by the exact number upon every of the equation's sides without changing the solution.

How do you demonstrate equality's multiplication property?

If a = b, then a/c = b/c where c is greater than zero. In other words, if two expressions are equal and subsequently multiply or divide (except for 0) the same constant by both, the two sides will remain equal.

According to the data:

x/2=7

x = 14

Multiplication Property of Equality is :

If a = b,

Multiply constant on both sides.

a * c = b * c

so ,

in the given sum x/2 = 7

multiplying this equation by 2 * x/2 = 7 * 2

                                                                                       = x = 14

According to the given data  the property justifies statement is: Multiplication Property of Equality.

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4,000 is blank times much as 4

Answers

Answer: 1000

Step-by-step explanation:

4000/4

Answer:

1000

Step-by-step explanation:

blank can be written as x. since this is a multiplication problem we need to the opposite of multiplying, which is dividing. rewrite the problem as 4000/4=x

solve by dividing 4000 by 4 to get 1000

1 Use the number line to find the coordinate of the midpoint of JP. K L M + -7-6-5-4-3-2-1 0 1 2 3 4 5 6 N P​

Answers

The coordinate of the midpoint of JP is -1

How to find the coordinate of the midpoint of JP?

On the number line, we have the following coordinates

J = -7

P = 5

The coordinate of the midpoint of JP is calculated using

Midpoint = 1/2 * (J + P)

This gives

Midpoint = 1/2 * (-7 + 5)

Evaluate the sum

Midpoint = 1/2 * -2

Evaluate the product

Midpoint = -1

Hence, the coordinate of the midpoint of JP is -1

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A ticket to see your favorite baseball team costs ​$31.55. That price decreases by ​$0.21 for every game lost during the regular season. What equation could you use to find the cost C of a ticket after L​ losses? Represent the total change in the cost of a ticket after the team loses 22 games. What is the price of a ticket after the team loses ​22 games?

Answers

Answer:

The price of a ticket after the team loses 22 games is $26.93

Step-by-step explanation:

Original value = $31.55

value decrease per game lost = $0.21

equation uses C and L

C = 31.55 - 0.21L

22 games lost

C = 31.55 - 0.21(22)

C = 31.55 - 4.62

C = 26.93

C = $26.93

The measures of two vertical angles are 5y + 10 and 2y + 16. Find the measure of both angles.

Answers

Answer:

20

Step-by-step explanation:

We know that two vertical angles are equal to each other.

Then

First, We have to solve the equation 5y + 10 = 2y + 16  for y.

After that ,we can easily find the measure of the angles by substituting y by its value in their expression.

SOLVING THE EQUATION :

5y + 10 = 2y + 16

⇔ 5y - 2y = 16 - 10

⇔ 3y = 6

⇔ y = 2

Determining the measure of the angles :

angle 1 → 5(2) + 10 = 20

angle 2 → 2(2) + 16 = 20


opy the vectors. Then find each sum or difference.
→w + →z

Answers

The components of the two vectors are added and subtracted to produce the addition and subtraction vector PQ. i.e. →PQ = →Q + →P and →PQ = →Q - →P

A vector, which denotes the mathematical and geometrical direction of the provided quantity, is a quantity with both magnitude and direction.

For example : Velocity, Displacement etc.  

Let's start by assuming that,

P(x,y,z) and Q(u,v,w)

Now, we need to find the vector addition and subtraction

Addition of vectors to give →PQ

→PQ = →Q + →P

= (ui + vj + wk ) + (xi + yj + zk)

= (ui + xi ) +(vj  + yj) + (wk +zk)

= (u+x) i + (v + y) j + (w + z)k

= →PQ

Similarly, Subtraction of vectors to give →PQ

→PQ = →Q - →P

= (ui + vj + wk ) - (xi + yj + zk)

= (ui + vj + wk  - xi - yj - zk)

= (ui - xi ) +(vj  - yj) + (wk -zk)

= (u-x) i + (v - y) j + (w - z)k

= →PQ

For example : Let P(1,2,1) and Q ( -1, -2,4)

Then, Addition →PQ = →Q + →P

= (1i + 2j + 1k ) + (-1i + (-2)j + 4k)

=  (1-1) i + (2 -2) j + (1 + 4)k

= oi+0j +5j

= 5j

Subtraction →PQ = →Q - →P

= (1i + 2j + 1k ) - (-1i + (-2)j + 4k)

=  (1+1) i + (2 +2) j + (1 - 4)k

= 2i+4j -3j

Hence, the vector PQ addition and subtraction is given by the addition & subtraction of the components of the two vectors.

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Pls Solve

find a. ga+q=r

Answers

The value of a for the given equation is a=(r-q)/g.

The given equation is ga+q=r.

We need to find the value of a from the given equation.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Now, ga+q=r can be solved for a as follows:

⇒ga=r-q

⇒a=(r-q)/g

Therefore, the value of a for the given equation is a=(r-q)/g.

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sin 0 <0, tan 0 <0 the angle lies in which quadrant

Answers

Answer: quadrant 4 (IV)

Step-by-step explanation:

Find the next term of the following sequence.
9, 6, 4,

Answers

Answer:

Step-by-step explanation:

Differences are 3 less then 2 less.

So, the next term would be 4-1 = 3.

what is g(r) = -5+13 when g(3)

Answers

The function g(3)'s expression is 8, which is

The supplied function is defined by a single expression, as per the query. Calculate the value of the other function using the provided expression.

In light of this, g(r) = -5 + 13 = 8

Additionally, the computed value can also be used as the value of the function expression g(3).

Consequently, the value of the function provided is 8.

Describe function.

The relationship between the dependent and independent variables is explained by the function. For the functions, it has a collection of values that may be connected using the domain technique.

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what is 10% of 17 because i don't know and i'm 4th grade.

Answers

10% of 17 is 1.7 I believe


Determine whether each infinite geometric series diverges or converges. 1/64 + 1/32 +1/16 + . . . .

Answers

A geometric series exist as the totality of an infinite number of terms that contain a constant ratio between consecutive terms.

The infinite geometric series 1/64 + 1/32 +1/16 + . . . . diverges.

What is an infinite geometric series?

The result of an endless geometric sequence exists an infinite geometric series. There would be no conclusion to this series. There would be no conclusion to this series. The infinite geometric series has the general form a1 + a1r + a1r² + a1r³+…, where r is the common ratio and a1 is the first term.

The equation be S = a1/(1-r), where s is the total, a1 is the series's first term, and r is the common ratio, is a general formula for calculating the sum of an infinite geometric series. The formula a2/a1, where a2 is the second term in the series and a1 is the first term in the series, can be used to determine the common ratio.

Let the sequence be 1/64 + 1/32 + 1/16 + . . . .

a(first  term) = 1/6

r(common ratio) = a2/a1 = (1/32) / (1/64)

= (64/32) = 2

Since, | r | > 1, the infinite geometric series diverges.

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2(3+6)+6-2=?
Solve the problem step by step

Answers

Answer:

13

Step-by-step explanation:

first use PEMDAS= P= Parentheses E= Exponents M= Multiplication D= Division A= Addiction S= Subtraction.

(3+6)+6-2=

9+6-2=

15-2=

13

Add 3+6 which is 9

Add 3+6 which is 9then add 9+6 equal to 15

Add 3+6 which is 9then add 9+6 equal to 15finally subtract 2 from 15

Add 3+6 which is 9then add 9+6 equal to 15finally subtract 2 from 15boom that's how you do it

Answer:

22

Step-by-step explanation:

Use Pemdas

P means parenthesis so add the numbers in the parenthesis

3 + 6 = 9

2(9) + 6 - 2 =

Next is E, but there are no exponents so now there is M

multiply 2 times 9, you will get 18.

18 + 6 - 2 =

So next is A which is addition, add 18 + 6

18 + 6 = 24.

24 - 2

And lastly, S which is subtraction.

24 - 2 = 22

So the answer is 22

Let x be a binomial random variable with p = 0.1 and n = 10. calculate the following probabilities

Answers

The probabilities from the binomial probability mass function P(x ≤ 2) will be 0.9298.

What is binomial distribution?

Frequency distribution of the percentage of successful outcomes that might occur in a certain number of trials with the same chance of success. If X~B(n, p), then the probability is given as

[tex]\rm P(X=x) = \ ^nC_x \times p^x \times (1-p)^{n - x}[/tex]

q = 1 - p = 1 - 0.10 = 0.90

Let x be a binomial random variable with p = 0.1 and n = 10.

The probabilities from the binomial probability mass function P(x ≤ 2) will be

P(x ≤ 2) = P(x = 0) + P(x = 1) + P(x = 2)

P(x ≤ 2) = ¹⁰C₀ × (0.1)⁰ × (0.9)¹⁰ + ¹⁰C₁ × (0.1) × (0.9)⁹ + ¹⁰C₂ × (0.1)² × (0.9)⁸

P(x ≤ 2) = 0.3487 + 0.3874 + 0.1937

P(x ≤ 2) = 0.9298

Your question was incomplete but the complete question is given below.

Let x be a binomial random variable with p = 0.1 and n = 10. Calculate the probability from the binomial probability mass function less than or equal to 2.

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Use distributive property to rewrite (3+8)15

Answers

By using distributive property 15(3 + 8) 15 11 = 165 both approaches yield the same conclusion.

Distrubutive Property Formula : a(b+c)=a b+a c

The distributive property is also known as the distributive law of multiplication over addition and subtraction. By its very name, the procedure implies that something will be divided or distributed.  According to the distributive property, an expression of the form A (B + C) can be resolved as A (B + C) = AB + AC. Subtraction also belongs to the scope of this distributive law, which is expressed as A (B - C) = AB - AC. The distribution of operand A among the other two operands is seen from this.

A (B + C) = AB + AC represents the distributive property of multiplication over addition.

15(3+8) = (15.3) + (15.8)

15.11 = 45 + 120

165 = 165

Using the law of BODMAS, we can now attempt to solve the expression. The solution is as follows. We will first add the figures in brackets, and then we will multiply this total by the figure outside of the brackets.

Hence, using distributive property, it follows that 15(3 + 8) x 15 = 165. As a result, both approaches yield the same conclusion.

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14. In science class, students weighed different
amounts of clay. Miguel's weighed
4.361 ounces, Kim's weighed 2.704 ounces,
Simon's weighed 5.295 ounces, and
Victoria's weighed 8.537 ounces.
A. How many ounces of clay did Miguel
and Victoria have in all?
B. How many ounces of clay did Kim and
Simon have in all?

Answers

Answer:

A:12.898

B:7.999

Step-by-step explanation:

A: 4.361+8.537

B:2.704+5.295


Determine whether the quadrilateral can always, sometimes, or never be inscribed in a circle. Explain your reasoning.
square

Answers

A quadrilateral (square) may always be used to create a square in a circle. Because squares have right angles at each vertex, every pair of opposing angles in a square is complementary and inscribed in a circle. This is an unavoidable characteristic of squares.

If the form in question is a square, each pair of adjoining angles is supplementary and inscribed in a circle. This is owing to the presence of right angles at each vertex of the square. This means that the assertion can never be proven false.

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If h(x)=|1-7x|, find each value… 23-h(9)

Answers

Answer:

-41

Step-by-step explanation:

h(x) = | 1-7x

First, calculate the value for the function for x = -9

h(-9) = |1--7x|

h(-9) = |1+63|

h(-9) = |64|

h(-9) = 64

23-h(-9) = 23-64 = -41

Hope this helps ;0

Help me with this. I am really stuck.

Answers

By the Hypotenuse Leg theorem, the two triangles are congruent. That is, ΔBXA ≅ ΔBYA

From the question, we are to prove that ΔBXA ≅ ΔBYA

From the Hypotenuse Leg theorem which states that "two right triangles are congruent if the hypotenuse and one leg of one right triangle are congruent to the other right triangle's hypotenuse and leg side".

From the given information,

BX ⊥ XA.

ΔBXA is right triangle with hypotenuse AB

Also,

BY ⊥ YA.

ΔBYA is right triangle with hypotenuse AB

∴ The hypotenuses of the triangles are congruent

Also, from the given information,

XA is congruent to YA

XA and YA are the legs of the right triangles.

Hence, by the Hypotenuse Leg theorem, the two triangles are congruent. That is, ΔBXA ≅ ΔBYA

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Given: ∠1 and ∠2 form a linear pair; m∠2 + m∠3 = 180 prove: ∠1 is congruent to ∠3

Answers

Based on the linear pair postulate, the statements and the reasons for the proof are explained below.

What is the Linear Pair Postulate?

The linear pair postulate states that if two angles form a linear pair, then both angles are supplementary, and therefore have a sum of 180 degrees.

The proof that states that angle 1 and angle 3 are congruent angles is shown below:

Statement 1. ∠1 and ∠2 are a linear pair

Reason: Given

Statement 2: ∠1 and ∠2 are supplementary      

Reason: Linear Pair Postulate  

Statement 3: m∠1 + m∠2 = 180°  

Reason: Definition of Supplementary Angles  

Statement 4: ∠2 = ∠4      

Reason: Given  

Statement 5: ∠3 = ∠4

Reason: Vertical Angles Theorem

Statement 6: ∠2 = ∠3

Reason: Corresponding angles theorem  

Statement 7: m∠2 = m∠3

Reason: Corresponding angles are congruent  

Statement 8: m∠1 + m∠3 = 180

Reason: Supplementary angle theorem

Statement 9: <1 and <3 are supplementary

Reason: Definition of supplementary angles

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3 consecutive integers that equal 21

Answers

6,7,8 because they are integers right after each other that equal 21.

Answer: 6,7,8

Step-by-step explanation:

-1/6 + (-3/7) = please help

Answers

Answer:

-0.595

Step-by-step explanation:

..

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