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2 years ago

9

Evaluate without a calculator:

1 answer:

noname [10]2 years ago

4 0

Answer:

240

Step-by-step explanation:

4 x -5 = -20

-20 x -12 = 240

240 is your answer

hope this helps!

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What is the solution to 5x - 3 = 12SHOW YOUR WORK

Dafna1 [17]

Answer:

Answer = X= 3

Step-by-step explanation:

Let's solve your equation step-by-step.

5x − 3 = 12

Step 1: Add 3 to both sides.

5x − 3 + 3 = 12 + 3

5x = 15

Step 2: Divide both sides by 5.

5x/5 = 15/5

Answer = X= 3

Hope I Helped. Have A Wonderful Day...

3 0

2 years ago

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Arisa [49]

Answer:

B) b√a

Step-by-step explanation:

b√a

8 0

2 years ago

What number is added to make a perfect square ?

V125BC [204]

Answer:

2 is added

Step-by-step explanation:

5 0

2 years ago

If there are 651 6th grade students at school, and three out of every seven of them play a sport, how many 6th graders do not pl

shusha [124]

Answer

7893=84

Step-by-step explanation:2=12d

5 0

2 years ago

If three quarters of a number decreased by twenty is equal to eighty two, what is that number?

Studentka2010 [4]

A number is :

$x$

_________________________________

Three quarters of it means :

$\frac{3}{4}x \\$

_________________________________

Decrease by 20 means :

$\frac{3}{4}x - 20 \\$

_________________________________

Equals to 82 means :

$\frac{3}{4}x - 20 = 82 \\$

_________________________________

What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

$\frac{3}{4}x - 20 = 82 \\$

Plus sides 20

$\frac{3}{4}x = 82 + 20 \\$

$\frac{3}{4}x = 102 \\$

Multiply sides by 4

$3x = 102 \times 4$

Divided sides by 3

$x = \frac{102 \times 4}{3} \\$

$x = \frac{102}{3} \times 4 \\$

Simplify

$x = 34 \times 4$

$x = 136$

So that number is 136 .

_________________________________

And we're done.

Thanks for watching buddy good luck.

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5 0

3 years ago