3 years ago

What value of r makes the equation true? r 0.12 = 0.20

Mathematics

1 answer:

USPshnik [31]3 years ago

6 0

I think the answer is 0.20 - 0.12 = 0.08

You might be interested in

Which expression is equivalent to 36^-1/2

inn [45]

ANSWER

$( {36})^{ (- \frac{1}{2}) } = \frac{1}{6}$

EXPLANATION

The given expression is

${36}^{( - \frac{1}{2} )}$
This is having a negative index. We must first of all change to a positive index.

Recall that,

${a}^{ - m} = \frac{1}{ {a}^{m} }$

We apply this law of exponents to get,

${36}^{( - \frac{1}{2} )} = \frac{1}{ {36}^{( \frac{1}{2} )} }$

We cab rewrite the given expression to obtain;

${36}^{( - \frac{1}{2} )} = \frac{1}{ \sqrt{36} }$

This will simplify to give us,

${36}^{( - \frac{1}{2} )} = \frac{1}{ 6 }$

6 0

3 years ago

Read 2 more answers

Dude this should be so easy but this is going in one ear and out the other how do I do this send help

kipiarov [429]

Answer:

0.5 hours

Explanation:

Given:

speed: 17 miles/hour

distance: 8 miles

Formula:

time taken = distance ÷ speed

Solve:

time taken = 8 ÷ 17 = 0.4706 ≈ 0.5 hours (rounded to nearest tenth)

6 0

1 year ago

Last one yall pls help me!

Xelga [282]

Answer:

8. 5/6

9. 6.25 or 6 1/4

10. 14.4 Fish

Step-by-step explanation:

8. Reduce the fraction. (20/24) You can divide both the numerator and denominator by 4.

9. Divide 75 by 12

10. Divide 72 by 5

8 0

2 years ago

Find the total mass of 32 nails each of mass 1.7 grams

Andrews [41]

Answer:

The answer is 54.4

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Charmaine reads 18 chapters of a book in 6 hours .What is her rate in chapters per hour?

andrew-mc [135]

Pretty sure its 3 chapters an hour

Becouse if she reads 3 chapters per hours it will be 3 X 6=18

8 0

2 years ago