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3 years ago

Solve the problem and show your work. Explain how you solved the problem using First, Next, and Last.

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

3 0

Answer:

10.44

Step-by-step explanation:

You can set up a proportion:

58/100=x/18

Cross Multiply:

100x=1,044

Divide:

x=10.44

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3 years ago

What does 6×3+(9-3)+1 equal?

Lelu [443]

Hi

6*3 + (9-3)
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3 years ago

Read 2 more answers

A developer claims that the percent of city residents who favor building a new football stadium is likely between 52.3% and 61.7

Dmitry [639]

Answer: 453

Step-by-step explanation:

To solve the question, we have to calculate the margin of error which will be:

= (61.7% - 52.3%) / 2

= 9.4% / 2

= 4.7%

4.7% = 1 / ✓n

0.047 = 1 / ✓n

✓n = 1 / 0.047

✓n = 21.28

Square both sides to.gwt the value of n

n = 21.28²

n = 452.69

n = 453

453 residents were surveyed

8 0

3 years ago

Todd is painting a banner on a wall in the cafeteria. The banner is in the shape of a rectangle and has a blue background. Todd

anastassius [24]

Well todd cant use all of the paint because that would be just waisting it because he has enough paint to cover the banner

6 0

3 years ago

Elimination_4x_2y=14 _10x+7y=_24

Gnesinka [82]

Answer:

The answer is $x=-\frac{50}{8}$ and $y=\frac{11}{2}.$

Step-by-step explanation:

Given:

-4x-2y=14

-10x+7y=-24

Now, to solve it by elimination:

$-4x-2y=14$ ......(1)

$-10x+7y=-24$ ......(2)

So, we multiply the equation (1) by 7 we get:

$-28x-14y=98$

And, we multiply the equation (2) by 2 we get:

$-20x+14y=-48$

Now, adding both the new equations:

$-28x-14y+(-20x+14y)=98+(-48)$

$-28x-14y-20x+14y=98-48$

$-28x-20x-14y+14y=50$

$-8x=50$

Dividing both the sides by -8 we get:

$x=-\frac{50}{8}$

Now, putting the value of $x$ in equation (1):

$-4x-2y=14$

$-4(-\frac{50}{8})-2y=14$

$\frac{200}{8} -2y=14$

$25-2y=14$

Subtracting both sides by 25 we get:

$-2y=-11$

Dividing both sides by -2 we get:

$y=\frac{11}{2}$

Therefore, the answer is $x=-\frac{50}{8}$ and $y=\frac{11}{2}.$

5 0

3 years ago