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2 years ago

What is the sum of 7/22 and 9/22

2 answers:

8 0

when u have a common a denominator then you just add the numerator that would be 7 and 9. 7 + 9= 16
so ur solution would be 16/22 and then u would simplify by dividing both values by 2.
so the solution is8/11

stepan [7]2 years ago

4 0

You need a common denominator. You already have one. So add 7+9=16. Put 16 over 22. That's your answer without reduction.

When you reduce it, divide it by 2 since its an even number.

16/22=8/11

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18√2 - 2√50 I need to know

MAXImum [283]

Answer:

8√2

Step-by-step explanation:

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3 years ago

Read 2 more answers

Erin washed the car 4 minutes slower than half of the amount of time it took time it took Tad to mow the lawn. In total, the two

vagabundo [1.1K]

Answer:it is b

Step-by-step explanation:

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2 years ago

Pixel goes shopping with one hundred dollars and ends up buying three different types of items: A, B, and C. The unit price of A

mixas84 [53]

Answer:

A - 16, B - 79, C - 5

Step-by-step explanation:

Given

A costs 5$
B costs $0.25
C costs $0.05
A + B + C = 100
5A + 0.25B + 0.05C = 100 ⇒ 100A + 5B + C = 2000

Subtract the first equation from the second:

99A + 4B = 1900

We have a restriction in numbers:

0 < A, B, C < 100

Since 4B can be max 400, we get 99A > 1500 and 99A < 1900 so:

A > 1500/99 > 15

and

A < 1900/99 < 19

A can be 16 or 18 as it should be even number to get B the whole number.

If A = 16:

99*16 + 4B = 1900
4B = 1900 - 1584
4B = 316
B = 316/4 = 79

If A = 18:

99*18 + 4B = 1900
4B = 1900 - 1782
4B = 118
B = 118/4 = 29.5, discarded as decimal

So we get:

A = 16, B = 79 and C = 100 - (16 + 79) = 5

Let's proof the numbers:

16*5 + 79*0.25 + 5*0.05 = 100, confirmed

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2 years ago

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Step-by-step explanation:

Rule: When exponents multiply, they add.

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2 years ago

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prisoha [69]

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3 years ago