David bought a box of peanuts. The box weighed 3/4 of a pound. He ate 1/5 of a pound of peanuts that night. How much did David have left over?
Answer:
3/4=75%
75%/5=15%
15% of a pound is 0.15 pound. 75% of a pound is 0.75 pound. If David ate 0.15 pound of the 0.75 pound then he has 0.60 pound left. 0.75-0.15=0.6
Find the value of this expression if x =7
x² +6/x - 2
Answer: [tex]\frac{355}{7}[/tex]
Decimal Answer: 47.857143
Please Mark Me As Brainliest If I Helped. Have a Great Day :D
Leonard earns $8.75 per hour working at a bowling alley. Last weekend, he worked for 5.4 hours. How much money did Leonard earn working at the bowling alley last weekend?
Answer:
$47.25
Step-by-step explanation:
Earnings = (rate of pay)(number of hours worked)
Here,
Earnings last weekend = ($8.75/hr)(5.4 hrs) = $47.25
Solve the equation - 12 = 4p.
P
How do you solve it ?
Answer:
Step-by-step explanation:
-12 = 4p
-12/4 = p
-3 = p
Answer:
-3
Step-by-step explanation:
-12 =4p
p =-12:4
p =-3
Find the cardinal number of the set
C = {x|x € N, 30 < x < 56 and x is divisible by 6},
=====================================================
Explanation:
We're given the following
[tex]C = \{ x | x \in \mathbb{N}, \ 30 < x < 56, \ \text{ x is divisible by 6}\}[/tex]
which means that we have a set of natural numbers between 30 and 56, excluding both endpoints, and the set of numbers are also multiples of 6.
So looking at the multiples of 6 that are between 30 and 56 leads us to
{30, 36, 42, 48, 54}
but we cross off 30 as we want x to be larger than that, so we get this updated final list
{36, 42, 48, 54}
There are four items in this final list so the cardinality of the set described is 4. The cardinality is just the number of items in a given set.
If f(x) = 3x — 2 and g(x) = х + 5, thеn f(g(x)) =
Answer:
D) 3x+13
Step-by-step explanation:
f(x+5)
-2+3(x+5)
-2+3x+15
3x+15-2
3x+13
Write 4,000+600+7in standard form
Answer: 4,607 would be the correct answer. Hope your having a great day!!!
Stephanie has 3.5 bags of soil to put in her garden. Each bag of aoil will cover 125.3 ft2. How many square feet will stephanie be able to cover if she uses all these bags of soil?
Answer:
438.55 ft²
Step-by-step explanation:
1 bag = 125.3 ft²
3.5 bags = 125.3 • 3.5 ft²
= 438.55 ft²
Answer:
Step-by-step explanation:
125.3*3.5
438.55
plz answer this i will marku pleeeeeeeeeezz
Answer:
x= 105 also because it's a z angle
y= 180-105
=75
x=z which is 105, because they are alternative angles.
The given angle of 105 and angle z are consecutive interior angles and need to equal 180 degrees.
Z = 180-105 = 75 degrees
Angle z and angle c are vertical angles and are identical so angle x also equals 75 degrees
Angle y and 105 are supplementary angles and when added equal 180
Angle y is 180-105 = 75
X, y and z are all 75 degrees
HELP ITS DUE IN A FEW MINUTES!!!!!! I’ll brainlist!!!
Answer:
8
Step-by-step explanation:
68/8.2=8
If M is the midpoint of segment XY, find the coordinates of point X if M is at
(-2,3) and Y is at (4,2).
Answer:
co ordinates of X is (-8,4)
(!!EXTRA POINTS!!)
The measure of an angle is two times the measure of its complementary angle. What is the measure of each angle?
Answer:
30 and 60 degrees
Step-by-step explanation:
30 and 60 are complementary angles. 60 is two times the measure of its complementary angle, or 30. 60+30=90.
Complementary angles are angles that add up to 90 degrees.
Angle one = x
Angle two = 2x
2x + x = 90 degrees
Combine like terms.
3x = 90 degrees.
Divide both sides by 3
x = 30
Angle one = x = 30 degrees
Angle two = 2x = 2(30) = 60 degrees.
The quotient of a number and
four is two
Answer:
x/4=2
Since it's not said, the number represent a variable which we'll write as "x". The word "is" means "equals".
What is the mean of his grades?
Molly has $45 in her wallet, which is 3 times as much money as her brother has.
Answer:
Her brother has $15
Step-by-step explanation:
How come Molly has $45 which is as 3 times as much money as her brother has, we divide 45 by 3 which gives us $15.
(I don't really know what your question is but I hope this helped.)
Which represents the solution set of the inequality 6x-9
Answer:
3(2x-3)
Step-by-step explanation:
6x-9 Common factor is 3
6x/3 = 2x
-9/3 = -3
3(2x - 3)
What are some combinations you can buy for lunch?
How much are you spending on your choice
Answer:
You can spend all of the money by getting 1 sandwich and 2 things of chips
Step-by-step explanation:
1 sandwich =4$
1 bag of chips =3$
4 + 3 =7
7+ 3= 10
solve 3(3x - 6) = 18
Steps to solve:
3(3x - 6) = 18
~Distribute left side
9x - 18 = 18
~Add 18 to both sides
9x = 36
~Divide 9 to both sides
x = 4
Best of Luck!
Answer:
x = 4
Step-by-step explanation:
Let's work on isolating (3x - 6). Start by dividing both sides of 3(3x - 6) = 18 by 3, obtaining:
3x - 6 = 6.
Next, add 6 to both sides:
3x = 12
Finally, divide both sides by 3:
x = 4
-3/4x <12
show step by step
Answer: x<-1/4
Step-by-step explanation:
Given
-3/x<12
Multiply x on both sides
-3/x · x<12 · x
-3<12x
Divide 12 on both sides
-3 / 12 < 12x / 12
-1/4<xSelect all the sums that are positive. A.–5 + (–2) B.5 + (–2) C.–3 + 4 D.0 + (–3) E.–2 + 4
Answer:
B and c and e
Step-by-step explanation:
Sorry if late I need points
The sums 5 + (–2), –3 + 4, and –2 + 4 are positive option (B), (C), and (E) are correct.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
It is given that:
A.–5 + (–2)
= -5 + (-2)
= -5 - 2
= -7 (negative)
B. 5 + (–2)
= 5 - 2
= 3 (positive)
C. –3 + 4
= -3 + 4
= 1 (positive)
D. 0 + (–3)
= -3 (negative)
E. –2 + 4
= -2 + 4
= 2 (positive)
Thus, the sums 5 + (–2), –3 + 4, and –2 + 4 are positive option (B), (C), and (E) are correct.
Learn more about the arithmetic operation here:
brainly.com/question/20595275
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Multiply, Express your answer in simplest form. 5/8 x 24
Answer: 15
120/8 = 60/4 = 15
Answer:
15
Step-by-step explanation:
A 16 -inch laptop has a screen that is 7 inches tall. How wide is the screen?
Answer:
Approximately 14.4 inches
Step-by-step explanation:
A 16-inch laptop means that a diagonal across the screen is 16 inches.
Imagine that the laptop is a triangle, with 2 sides: the height and the width of screen, and a hypotenuse, the diagonal across the screen (see attached image).
Here, we can use the Pythagorean theorem to find the width.
The relationship is the following
[tex]diagonal^2 = height^2 + width^2[/tex]
We can rearrange this to find the width of the screen:
[tex]diagonal^2 = height^2 + width^2\\diagonal^2 -height^2 = width^2\\width^2 = diagonal^2 -height^2\\width = \sqrt{diagonal^2 - height^2}[/tex]
Let's put in our values for the diagonal and the height:
Diagonal = 16
Height = 7
[tex]width = \sqrt{16^2 - 7^2}\\ width = \sqrt{256 - 49} \\width = \sqrt{207}\\width = 14.3874946[/tex]
As we can see, the width of our laptop is around 14.4 inches.
Answer: approximately 14.4 inches
The width of the laptop screen is x = 14.3inches.
Given that,
A 16 inch laptop has a screen that is 7 inches tall.
We have to determine,
How wide is the screen.
According to the question,
Diagonal length of the laptop = 16 inches
Length of the laptop = 7 inches
Width of the laptop = x inches
By using Pythagoras theorem,
[tex](Diagonal)^2 = (length)^{2} +( width)^{2}\\\\(16)^2 = (7)^2 + x^{2} \\\\x^{2} = 256 - 49\\\\x^{2} = 207\\\\x = \sqrt{207}\\\\x = 14.38 \ inches[/tex]
Hence, The width of the laptop screen is x = 14.3inches.
To know about Measurement click the link given below.
https://brainly.com/question/17690582
use grids to find the factor pairs for 48
Answer:
1 x 48, 2 x 24, 3 x 16, 4 x 12, or 6 x 8. Factors of 48: 1, 2, 3, 4, 6, 8, 12, 16, 24,
Step-by-step explanation:
u need to find the highest common factor
Please help me thank you
Answer:
(-3,2)
Step-by-step explanation:
Brackets cannot be mixed with other types of punctuation like these { }, [ ]. Once you use a bracket, you have to close the sentence or equation with a closed bracket. Ex: (Like this) Maths equation: 3 x (4/5) + 19=
Closeness of a measurement to the actual value of the dimension being measured. For example, a measurement of 1.99999 cm for an object that is 2 cm wide has a high level of accuracy? a.precision b.conversion factor c.quantify d.accuracy?
a. precision
b. conversion factor
c. quantify
d. accuracy
Answer:
d. accuracy
Step-by-step explanation:
In measurements, accuracy is a term that is used to describe the closeness of a measured value to the actual or true value. While precision describes how close different measured values are to each other.
Thus when a measured value is accurate, it implies that the value is very close or almost equal to the true value. The correct answer to the question is is option D.
The amount of time a passenger waits at an airport check-in counter is random variable with mean 10 minutes and standard deviation of 2 minutes. Suppose a random sample of 50 customers is observed. Calculate the probability that the average waiting time waiting in line for this sample is (a) less than 10 minutes (b) between 5 and 10 minutes
Answer:
(a) less than 10 minutes
= 0.5
(b) between 5 and 10 minutes
= 0.5
Step-by-step explanation:
We solve the above question using z score formula. We given a random number of samples, z score formula :
z-score is z = (x-μ)/ Standard error where
x is the raw score
μ is the population mean
Standard error : σ/√n
σ is the population standard deviation
n = number of samples
(a) less than 10 minutes
x = 10 μ = 10, σ = 2 n = 50
z = 10 - 10/2/√50
z = 0 / 0.2828427125
z = 0
Using the z table to find the probability
P(z ≤ 0) = P(z < 0) = P(x = 10)
= 0.5
Therefore, the probability that the average waiting time waiting in line for this sample is less than 10 minutes = 0.5
(b) between 5 and 10 minutes
i) For 5 minutes
x = 5 μ = 10, σ = 2 n = 50
z = 5 - 10/2/√50
z = -5 / 0.2828427125
= -17.67767
P-value from Z-Table:
P(x<5) = 0
Using the z table to find the probability
P(z ≤ 0) = P(z = -17.67767) = P(x = 5)
= 0
ii) For 10 minutes
x = 10 μ = 10, σ = 2 n = 50
z = 10 - 10/2/√50
z = 0 / 0.2828427125
z = 0
Using the z table to find the probability
P(z ≤ 0) = P(z < 0) = P(x = 10)
= 0.5
Hence, the probability that the average waiting time waiting in line for this sample is between 5 and 10 minutes is
P(x = 10) - P(x = 5)
= 0.5 - 0
= 0.5
factorise x^3+3x^2y+3xy^2+y^3
(x + y)³
Step-by-step explanation:use (a + b)³ = a³ + 3a²b + 3ab² + b³
x³ + 3x²y + 3xy² + y³ =
= (x + y)³
making $40 payments each Friday,
6. Emily borrowed $1,000 from her parents to put towards a down payment on a car. She has
already paid back $350. Her parents do not charge any interest and Emily is planning on
Write an equation that represents the number of weeks it will take Emily to repay her
b. Is the solution to the equation the actual number of weeks it will take Emily to repay her
Lesson 1.5.
parents? Explain your answer.
a.
parents if she pays $40 each Friday.
3x-24=5x what’s the answer
Answer:
x = -12
Step-by-step explanation:
3x-24=5x
3x-5x=24 (move x's to same side by adding 24, and subtract 5x)
-2x = 24 (combine like variables, 3x-5x)
x = -12 (divide by -2)
What is 90.125 written in expanded form? A. 9 × 10 + 1 × 1 + 2 × 1 10 + 5 × 1 100 B. 9 × 1 + 1 × 1 10 + 2 × 1 100 + 5 × 1 1 , 000 C. 9 × 10 + 1 × 1 10 + 2 × 1 100 + 5 × 1 1 , 000 D. 9 × 1 + 1 × 1 100 + 2 × 1 1 , 000 + 5 × 1 10 , 000
Using digit concepts, it is found that, in expanded form:
[tex]90.125 = 9 \times 10^1 + 0 \times 10^0 + 1 \times 10^{-1} + 2 \times 10^{-2} + 5 \times 10^{-3}[/tex]
--------------------
Each number can be divided into an integer part and a decimal part. For 90.125, the integer part is 90 and the decimal part is 0.125.In the integer part, starting from the last digit, each is multiplied by the "next" power of 10, thus:[tex]90 = 0 \times 10^{0} + 9 \times 10^{1} = 9 \times 10^{1} + 0 \times 10^{0}[/tex]
For the decimal part, starting from the first decimal digit, the same logic applies, using negative powers of 10 starting at -1, thus:[tex].125 = 1 \times 10^{-1} + 2 \times 10^{-2} + 5 \times 10^{-3}[/tex]
Combining the integer and decimal parts, we get that the number in expanded form is:
[tex]90.125 = 9 \times 10^1 + 0 \times 10^0 + 1 \times 10^{-1} + 2 \times 10^{-2} + 5 \times 10^{-3}[/tex]
A similar problem is given at https://brainly.com/question/17574571
Answer:
B is right
Step-by-step explanation:
