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2 years ago

Someone plz help me :(

Mathematics

1 answer:

kondaur [170]2 years ago

7 0

Answer:

the answer is 9 mark me brainlest

Step-by-step explanation:

A P E X

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If x + 10 = 70, what is x? Α. 40 B. 50 C. 60 D. 70 E. 80

Helen [10]

Answer:

C.60

x + 10 = 70

x = 70 -10

x =60

4 0

2 years ago

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What does x+x+x+x+x-1+1+1+1= ? (Giving this for 30 points)

77julia77 [94]

First, let's add all the x's.

x + x + x + x + x = 5x

5x - 1 + 1 + 1 + 1

Now, let's add together all the 1's that are being added (not the 1 that is being subtracted from 5x).

1 + 1 + 1 = 3

5x - 1 + 3

3 - 1 = 2

5x + 2

There's no way you can actually solve this unless you know the value of x; without x's value, this is as simplified as the expression is going to get.

Hope this helps!

7 0

3 years ago

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How many times does 6 go into 516

8090 [49]

6 goes into 516 86times.You only divide 516/6

4 0

3 years ago

What number is 6% of 30?

rosijanka [135]

so you would do 6/100 *30/1 wich is 90/50 as a pecent is 180 an move the decimal place 2 times

ANSWER 1.8

3 0

3 years ago

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7. The largest of the Great Pyramids in Egypt was built with a square base,

strojnjashka [21]

Answer:

Difference between the original and current volumes = 4013140.30 cubic feet

Step-by-step explanation:

Largest pyramid has the square base with one edge = 754 feet

Area of the square base = (Side)²

= (754)²

= 568516 square feet

Volume of the pyramid = $\frac{1}{3}(\text{Area of the base})(\text{Height})$

= $\frac{1}{3}\times 568516\times 481$

= 91152065.3 cubic feet

After erosion,

Area of the base = (745)² = 555025 square feet

Volume of the pyramid = $\frac{1}{3}(555025)(471)$

= 87138925 cubic feet

Difference between the original and current volumes of the pyramid

= 91152065.30 - 87138925

= 4013140.30 cubic feet

5 0

3 years ago