Help I’m timed I’ll mark u brainliesttt

Mathematics

1 answer:

Zigmanuir [339]2 years ago

4 0

It would be 5sqrt2

a^2 + b^2 = c^2
5^2 + 5^2 = c^2
25 + 25 = c^2
50 = c^2
c = sqrt 50
c = 5sqrt2

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Explain how the expression 19√2+2√8 can be simplified using the distributive property.

Ilya [14]

Answer:

23√2

Step-by-step explanation:

1. Simplify √8 to 2√2

19√2 +2* 2√2

2. Simplify 2*2√2 to 4√2

19√2 + 4√2

3. Simplify

23√2

3 0

2 years ago

Ajar holding 36 coins, only nickels and quarters, is worth $6.20. There are eight more quarters than there are nickels. How many

Nonamiya [84]

Answer:

Step-by-step explanation:

Let n represent the number of nickels. Then the number of quarters is 36-n. The difference is ...

(36-n) -n = 8 . . . . . 8 more quarters than nickels

18 -n = 4 . . . . . . . divide by 2

14 = n . . . . . . . . add n-4 to both sides

There are 14 nickels in the jar.

_____

<em>Additional comment</em>

The problem supplies more information than is needed for a solution. You can work this as a "sum and difference" problem, as we have above, or you can work it as a "mixture" problem where the total coin value comes into play. Any two of the three given relations will give a solution.

n + q = 36 . . . . . . . number of coins

5n +25q = 620 . . . value of coins (in cents)

q -n = 8 . . . . . . . . difference in number of coins