3 years ago

My sister need help with algebra!

Mathematics

1 answer:

siniylev [52]3 years ago

7 0

I do too ! ahaha but her hand writing is so niceee bye -

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If the angle tis 42 and RS is 9 find QS. Round to the nearest tenth.<br> Q<br> R

Crank

Answer:

QS is 12.1

Step-by-step explanation:

9 / sin 48 = QS / sin 90

QS = 9 / sin 48 = 12.1

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4 years ago

How many miles are in 400 kilometers? How many miles are in 400 kilometers? Follow 3 answers 3 Report Abuse Are you sure you wan

Ivenika [448]

Hello there. :)

<span>How many miles are in 400 kilometers

248.548
</span>

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3 years ago

Mr. Jackson took his new car on a family vacation.The car. 1,454.625 miles and used 4.5 tanks of gas. How many miles does he get

aleksklad [387]

(1454.625 mles)/(4.5 tanks) = 323.25 miles/tank

He gets 323.25 miles on a single tank of gas.

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4 years ago

What number could replace x to make a true statement?

Rudik [331]

Answer:

5 i think

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Andre says that 5 3/4 + 2 1/4 = 7 1/2 because 7 4/8 = 7 1/2. Identify his mistake. Draw a picture to prove that he is wrong.

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

The given expression is

$5\frac{3}{4}+2\frac{1}{4} =7\frac{4}{8}=7\frac{1}{2}$

We will rewrite the expression

$\frac{23}{4}+\frac{9}{4} =\frac{60}{8}=7\frac{1}{2}$

When we add the fraction

$\frac{23+9}{4}$ = $\frac{32}{4}$ = 8

While Andre says the answer is $7\frac{1}{2}$

because Andre added the denominator where he has to make a common denominator that should be 4 instead of 8.

Andre made mistake in this step

Picture is given below :

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4 years ago