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4 years ago

Matt was given the problem: "16 is 80% of what?"

Mathematics

1 answer:

irga5000 [103]4 years ago

3 0

Answer:

$\frac{16}{x} = \frac{80}{100}$

Step-by-step explanation:

To set up this proportion, we know that 16 must correspond with 80% and the x, the number we're looking for must correspond with 100%

$\frac{16}{x} = \frac{80}{100}$

This would be the correct proportion, and you could simplify it to equal

$\frac{16*100}{80}$

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What is the answer to this word problem??

AveGali [126]

Let’s use m for months
So,
1st service
10m + 20

1. 10 + 20 =30
2. 10x2=20+20=40
3.10x3=30+20=50
4.10x4=40+20=60
5.10x5=50+20=70

2nd service
11m + 15

1. 11+15=26
2. 11x2=22+15=37
3 11x3=33+15=48
4.11x4=44+15=59
5.11x5=55+15=70

So, the 5th month the services cost the same

Hope this helps! ;)

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3 years ago

What is the solution to this system of equations?

xeze [42]

(-8,-5) is the answer in coordinate pairs

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3 years ago

An artist creates a right prism whose base are regular pentagons. He wants to paints the lateral surfaces of the prism. One can

Dmitry [639]

He needs 13 cans of paint.

The lateral area is given by the area of 5 rectangles, whose dimensions are 15 by 5:
5(15)(5) = 375

Divide this by 30:
375/30 = 12.5 ≈ 13

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4 years ago

1.4142 / 2 (must show work)

solmaris [256]

Answer:

2.378

Step-by-step explanation:

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4 years ago

Help on both of these pls<br> also sry the lighting is weird

IRISSAK [1]

Answer:

see explanation

Step-by-step explanation:

The 2 angles form a right angle, thus their sum is 90°, hence

4x + 7 + 35 = 90

4x + 42 = 90 ( subtract 42 from both sides )

4x = 48 ( divide both sides by 4 )

x = 12

-----------------------------------------------------

To calculate the slope m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (1, 4) ← 2 points on the line

m = $\frac{4-0}{1-0}$ = $\frac{4}{1}$ = 4

5 0

4 years ago