72 = r 90 Whats R in this equation

Answers

Answer 1

Answer: rmemeber you can do anything to an equaiton as longn as you do it to both sides
also x times 1/x=1 since x/x=1
also x times 1=x

72=r90
divide both sides by 90
72/90=r
0.8=r

r=0.8

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Find PR. PLSSS HELP BRAINLIEST Pls..

Answers

Answer:

PR = 6.9

Step-by-step explanation:

From the diagram, the following were obtained:

Hypo = 10

Opp = PR

Sin0 = 44°

Sin0 = opp /Hypo

Sin44° = PR/10

Cross multiply

PR = 10 x Sin44°

PR = 6.9

Answer:

sin44 = PR÷PQ = 0.694÷1 × X÷10 = X = 6.94

What is the length of a phone call that would cost the same no matter what company is used?Company A - 0.35cents plus 0.3cents per minute
Company B - 0.45cents plus 0.2cents per minute

Answers

Answer: The length of phone call is 1 minute that would cost the same for both the companies.

Step-by-step explanation:

Since we have given that

Company A - 0.35cents plus 0.3cents per minute

Company B - 0.45cents plus 0.2cents per minute

Let the number of minute be x.

So, our equation for company A would be

$0.35+0.3x$

our equation for company B would be

$0.45+0.2x$

According to question, length of phone call that would cost the same.

so, our equation becomes

$0.35+0.3x=0.45+0.2x\n\n0.3x-0.2x=0.45-0.35\n\n0.1x=0.10\n\nx=(0.10)/(0.1)\n\nx=1$

Hence, the length of phone call is 1 minute that would cost the same for both the companies.

company A- 0.35cents plus 0.3cents per minute.

In a multiplication problem, if the first factor has 5 digits after the decimal and the second factor has 4 digits after the decimal, then the product will have _____ digits after the decimal.1
4
5
9

Answers

The answer is 9. When multiplying by decimals, you add up how many numbers are after the decimal in both numbers. So, the first on had 5, the second had 4.
5 + 4=9

The answer will have 9 digits after the decimal.

Hope I helped

How do I solve this equation? If 3t-7=5t then 6t=

a 21
b-7
c-21
d-42

Answers

If 3t – 7 = 5t, then 6t =
Let’s first solve the first equation:
=> 3t – 7 = 5t
=> 3t – 5t = 7
=> -2t = 7
=> t = 7 / -2
=> t = -7/2

If t = -7/2 , then 6t = 6 (-7 / 2)
=> t = -42/2
=> t = - 21 Thus, the value of t in If 3t – 7 = 5t is -7/2
and the value of t in 6t = is -21
The answer is C.

4 laps is equal to 1 mile how many laps for 1/4 mile?

Answers

Answer:

1 lap

Step-by-step explanation:

1/4 mile is 1 mile divided by 4, so also divide 4 laps by 4 to get 1 lap.

1 lap is equal to 1/4 mile.

Whats 13% of 80
plz answer correctly

Answers

Start by dividing 13% by 100 because we need to make it into a decimal
13/100=0.13
of=multiply
So from here we simply multiply:
0.13*80=10.4
So our final answer would be: 10.4

We have an equation: ?/80= 13/100

Cross multiply:
100*?= 13*80
⇒ ?= 13*80/100= 10.4

13% of 80 is 10.4~

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