What is the solution to -(4n + 19) = 6(n - 9)

Answer:173/10

Step-by-step explanation:

Answer:

x= 17.3

Step-by-step explanation:

-10(x-17) = -3                 equation

-10x + 170 = -3             multiply -10 to everything in parenthesis

-10x = -173                   subtract 170 from both sides of the equation

[tex]\frac{-10x}{-10} =\frac{-173}{-10}[/tex]                  divide -10 from both sides

x= 17.3

Answer:

Observational

Step-by-step explanation:

Observational studies are studies that measure the outcome of events without the introduction of interventions. They are useful in the formation of a hypothesis. The experiment described above is an observational study that compares two groups so as to measure the predictors of an outcome. No intervention is introduced to influence the outcome of the research.

An experiment on the other hand is often organized as a randomized control trial where subjects are divided into groups and a placebo or control group is introduced to monitor the outcome of the study.

Answer:

Between 6-7

Step-by-step explanation:

The square root of 47 is in-between 6 (36) and 7 (49), and is closer to 7 than to 6.

*Formatting is a little off, so apologies if this isn't the exact answer you're looking for

Answer:

$4.47

Step-by-step explanation:

Price if 1 pound of bananas=$1.49

Price if 3 pounds of bananas=3x$1.49

=$4.47

Answer:

8n - 14 = 4n + 3 is the equation

and

n = 4.25

Step-by-step explanation:

hope this helped a little bit :))

Answer:

the b

Step-by-step explanation:

Answer:

i=12p−w

Step-by-step explanation:

Step 1: Flip the equation.

2i+2w=p

Step 2: Add -2w to both sides.

2i+2w+−2w=p+−2w

2i=p−2w

Step 3: Divide both sides by 2.

2i2=p−2w2

i=12p−w

Answer:

129 divided by 12

Step-by-step explanation:

itll get the amount of feet

Answer:

9.2 ft

Step-by-step explanation:

The area of a square is A = s^2 where s is the side length

A = s^2

85 = s^2

Take the square root of each side

sqrt(85) = sqrt(s^2)

sqrt(85) = s

9.219544457 =s

9.2 ft  is about the length of each side

Answer:

Step-by-step explanation:

If k is any integer then 2k is even number and 2k+1 is odd number.

The next odd number to 2k+1 would be: 2k+1+2=2k+3

the sum is 104 so:

2k+1 + 2k+3 = 104

4k + 4 = 104

4k = 100

k = 25

2k+1 = 2•25+1 = 51

2k+3 = 2•25+3 = 53

Check:

51 + 53 = 104

Answer:

Triangle.

Step-by-step explanation:

Reflection of an figure across any line is the mirror image of the figure.

That means reflection of a figure is a rigid transformation, in which size or shape of the image doesn't change.

Therefore, when we reflect triangle ABC across the line MN shape of the reflected angle will remain same as a triangle.

Answer:

4

Step-by-step explanation:

edg and i got it right

For the number of hours greater than or equal to 5.4,  it would take for a worker in this factory to reach 100% of her daily noise exposure.

inequality : An inequality is used to make unequal comparisons between two expressions or numbers.

expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.

equation : A mathematical equation is used to equate two expressions.

Given is that the inequality (94 – 3 log2x ≤ 88) describes noise exposure level (in decibels) in terms of the number of hours {x} it takes to reach 100% of a person’s recommended daily noise dose.

The given inequality is -

94 – 3 log(2x) ≤ 88

94 - 88 ≤ 3 log(2x)

6 ≤ 3 log(2x)

log(2x) ≥ 2

log(2) + log(x) ≥ 2

log(x) ≥ 2 - log(2)

log(x) ≥ (2 - 0.31)

log(x) ≥ 1.69

x ≥ 5.41

Therefore, for the number of hours greater than or equal to 5.4,  it would take for a worker in this factory to reach 100% of her daily noise exposure.

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Answer:

x=[tex]\frac{2}{8}[/tex]a

Step-by-step explanation:

8ax-5 = -3

Move the -5 to the right side ; -3 + 5 = 2

8ax=2

Get rid of 8a so you are left with x alone by dividing it out

[tex]\frac{8ax}{8a}[/tex] = [tex]\frac{2}{8a}[/tex]

You are left with

x= [tex]\frac{2}{8}[/tex]a

The value of x is 1/4a

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side. In every equation in math, we have, L.H.S = R.H.S.

There are different parts of an equation which include coefficients, variables, operators, constants, terms, expressions, and an equal to sign. When we write an equation, it is mandatory to have an "=" sign, and terms on both sides. Both sides should be equal to each other. An equation doesn't need to have multiple terms on either of the sides, having variables, and operators. An equation can be formed without these as well, for example, 5 + 10 = 15.

Given equation:

8ax−5=−3

8ax= -3+5

8ax= 2

x= 2/8a

x= 1/4a

Hence, the value of x is 1/4a

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Answer:

Student 2 1 sec

Step-by-step explanation:

Answer:

10 birdhouses

Step-by-step explanation:

floor gang aooh sub to pewdiepie

Answer: B

Step-by-step explanation:

Answer:

[tex]x=1[/tex]

Step-by-step explanation:

So we have the equation:

[tex]30-3x=15+12x[/tex]

First, let's add 3x to both sides. The left side cancels:

[tex]30=15+15x[/tex]

Now, subtract 15 from both sides. The right cancels:

[tex]15=15x[/tex]

Divide both sides by 15:

[tex]x=1[/tex]

So, the value of x is 1.

And we're done!

Answer:

1 =x

Step-by-step explanation:

30 - 3x = 15 + 12x

Add 3x to each side

30 - 3x+3x = 15 + 12x+3x

30 = 15x +15

Subtract 15 from each side

30-15 = 15x+15-15

15 =15x

Divide each side by 15

15/15 = 15x/15

1 =x

Answer:

x = 3, y = 150

k = y/x

k = 150/3 = 50

y = 50x....when  x = 4.3

y = 50(4.3) = 215 tons of steel

Answer:

Step-by-step explanation:

1. Blank= 5

2. Blank= 10 (I believe)

3. Blank= 8

4. Blank= 13 (I believe)

5. Blank= 12

6. Blank= 7

Hope it helps!

OwO

Answer:

The roast weighed 1.375 kg

Step-by-step explanation:

Here, we want to know what the roast lamb will weigh in kilograms given its cooking time.

From the question, we are told that to cook 250 grams, 20 minutes is need.

So let’s make a relationship here,

Firstly let’s express 1 hour and 50 minuets in minutes, that will be 60 + 50 = 110 minutes( 1 hour is 60 minutes)

Now;

let’s have our relationship;

20 minutes = 250 grams

110 minutes = x grams

By cross multiplication;

20 * x = 250 * 110

20x = 27,500

x = 27500/20

x = 1,375 grams

But, mathematically 1000g = 1kg

So 1,375 will be 1375/1000 = 1.375 kg

The function h(x) has a maximum at 4,the vertix is 4,3

Answer

Graph?

Step-by-step explanation:

Answer:

your answer is b

Step-by-step explanation:

Answer:

68 flowers

Step-by-step explanation:

70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68.

Answer:

68 flowers

Step-by-step explanation:

Kreem starts with 70 flowers

He gives x amount of flower away

That leaves us with 70-x =2

Or 2+x=70

We can now rewrite the question to 70-2=x

Using this we see x, the amount of flowers given away, is 68.

Kreem gave away 68 flowers

Happy to help!

Answer:

Q1 a) 0.9545

b) 0.02275

c) 0.97725

Q2 z is approximately equal to -1.466

Step-by-step explanation:

Q1 The given information are;

The mean time to commute to work = 24.4 minutes

The standard deviation = 6.5 minutes

a) The z-score for 11.4 is given as follows;

[tex]Z=\dfrac{x-\mu }{\sigma }[/tex]

Where;

x = Observed value 11.4

μ = The mean = 24.4 minutes

σ = The standard deviation = 6.5 minutes

[tex]Z=\dfrac{11.4-24.4 }{6.5 } = -2[/tex]

The z-score for 37.4 is given as follows;

[tex]Z=\dfrac{37.4-24.4 }{6.5 } = 2[/tex]

-2 < z < 2, which gives, from the z-score table;

The probability of commute time to be between 11.4 minutes and 37.4 minutes =  0.97725 - 0.02275 = 0.9545

b) From the z-score table, the probability that the commute time to be less than 11.4 minutes = The probability at z = -2 = 0.02275

c) From the z-score table, the probability that the commute time to be greater than 37.4 minutes = The probability at z = 2 = 0.97725

Q2 The the z-score that corresponds to a commute time of 15 minutes is given as follows;

[tex]Z=\dfrac{x-\mu }{\sigma }[/tex]

[tex]Z=\dfrac{15-24.4 }{6.5 } = -\dfrac{94}{65} \approx -1.466[/tex]

Answer:

the z score is 25

Step-by-step explanation:

since 75 needs 25 more for and 100%

The z-score of Bob if he scored 75 on a test that has a mean of 75 is: z-score = 0.

The z-score = (raw score - mean score)/standard deviation.

A z-score of 0 means the raw score is exactly average.

For a raw score of 75, where the average(mean) is 75, the z-score would definitely be 0.

Thus, Bob's z-score is 0.

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Answer:

width  = 11, len = 19

Step-by-step explanation:

length = 2w - 3

l = length

w = width

2(length) + 2(width) = perimeter

2(2w - 3) + 2(w) = 60

6w -6 =60

w = 11

len = 2(11) - 3

The length of the rectangle is 19 inches and the width is 11 inches

The perimeter of a rectangle is given as 2(l+w)

Now

Given that the Perimeter is 60 inches

Let the width be w

So that the Length is 2w -3

Putting the values into the equation , we have

Perimeter = 2(l+w)

Perimeter =2L + 2w  

Putting the values

Perimeter =2(2w -3) + 2w

Perimeter =4w -6 + 2w

60=6w-6

60+6=6w

66=6w

w  =66/6  =11inches

Since the width is 11 inches,

The length will be  2w -3 = (2x11)-3=19 inches

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