What is avariable , what is its purpose ?

1 answer:

4 0

a variable is anything that takes place of a number , such as ‘x’ or ‘y’ , it’s mostly used in science and math , it’s to replace a number

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Please help me I will give brainliest, thank you :D

Flauer [41]

Yes for number 1 . .

8 0

3 years ago

Solve. -5/8c = 20 A. -34 B. -32 C. 32 D. 34

aleksandrvk [35]

$- \frac{5}{8} c$ = 20

First, simplify $\frac{5}{8} c$ to $\frac{5c}{8}$ / Your problem should look like: $- \frac{5c}{8}$ = 20
Second, multiply both sides by 8. / Your problem should look like: -5c = 160
Third, divide both sides by -5. / Your problem should look like: c = $\frac{160}{-5}$
Fourth, simplify $\frac{160}{-5}$ to $-\frac{160}{5}$ / Your problem should look like: c = $-\frac{160}{5}$
Fifth, simplify $\frac{160}{5}$ to 32. / Your problem should look like: c = -32

Answer: B) -32

3 0

4 years ago

SOS i need helppp!! i'm not good at math just reading and science!!!

Viktor [21]

I got 45 for x and 135 for z.

X and 3x are supplementary (they equal 180) x+3x=180 — 45+3(45)=180

Then x and z are also supplementary x+z=180 — 45+z=180

(45-45)+z=180-45

Z=135

Sorry if this is wrong. I did my best, hope it helps

7 0

3 years ago

What graph are present a proportional relationship I ready

dmitriy555 [2]

Answer: The second one

Step-by-step explanation:it's the second one because the line goes strait through the orign

5 0

4 years ago

String A is 35 centimeters long.string B is 5 times as long as string a .both are necessary o create a decorative bottle. Find t

Degger [83]

String A is 35 cm long, string B is 5 times as long as string A, then string B is 35·5=175 cm long. In total both strings have length 35+175=210 cm.

The total length of string needed for 17 identical decirative bottes is $210\cdot 17=3570$ cm that is 35.7 m.

Answer: 35.7 m

5 0

4 years ago

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What is avariable , what is its purpose ?​

What is avariable , what is its purpose ?