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1 year ago

Which equations are true equations?

Mathematics

1 answer:

xz_007 [3.2K]1 year ago

3 0

Answer: 24 over 2 squared equals 50 minus 6 squared minus 8

56 divided by 8 plus 3 squared equals 2 times 2 cubed

Step-by-step explanation:

24/2^2 = 50-6^2 - 8

24/4 = 50-36-8

6 = 14-8

6=6

39-3*6 = 6*10/4 + 4

39 - 18 = 15 + 4

21 = 19

9^2 - 5 ^ 2 = 4 ^ 2 - 7

81 - 25 = 16 - 7

56 = 9

56/8 + 3^2 = 2 * 2^3

7 + 9 = 2 * 8

16 = 16

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What is 1 7/9 - 4/9?

Lera25 [3.4K]

1 7/9 - 4/9

Convert 1 7/9 to an improper fraction:

16/9 - 4/9

Subtract the numerators together:

12/9

Convert to a whole number:

1 1/3

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3 years ago

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A triangle has an area of 56 square units it's height is 14 units

kobusy [5.1K]

The formula for the area of a triangle is 1/2*b*h=a.
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3 years ago

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2 years ago

What is the speed of a car that takes 3 hours to go 75 miles

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2 years ago

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Mai is filling her fish tank. Water flows into the tank at a constant rate. Complete the table and answer the question below.

kvasek [131]

Answer:

$r = 1.6$

Step-by-step explanation:

Given

x ----- y

0.5. --- 0.8

1. --- 1.6

3.--- 4.8

25. --- 40

Required

Determine the constant of proportionality

This can be calculated using the following formula:

$y = rx$ ; Where r is the constant of proportionality;

Solve for r

$r = \frac{y}{x}$

When x = 0.5; y = 0.8

$r = \frac{0.8}{0.5}$

$r = 1.6$

When x = 1; y =1.6

$r = \frac{1.6}{1}$

$r = 1.6$

When x = 3; y = 4.8

$r = \frac{4.8}{3}$

$r = 1.6$

When x = 25; y = 40

$r = \frac{40}{25}$

$r = 1.6$

Notice that the value of r is constant throughout;

Hence:

$r = 1.6$

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2 years ago