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lbvjy [14]
3 years ago
11

I need to learncmy 9 year old how to multiply ​

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
7 0

Answer:

Step-by-step explanation:

get them some multiplication charts and use some examples like oreos or any type of cookies.

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URGENT!!! The figure below shows two triangles EFG and KLM:
Ipatiy [6.2K]

Triangle EFG can also be proven to be a right triangle by using the following: D. Prove that KL is equal to c by Pythagorean Theorem.

<h3>What is the Pythagorean Theorem?</h3>

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7 0
2 years ago
How much of a 60% acid solution must be mixed with 50 gallons of a 24% acid solution to obtain a solution that is 50% acid?
tiny-mole [99]
My teacher taught me a simple equation for these types of problems:
(percent of solution × amount of solution) + (percent of solution × amount of solution) = (percent of solution × total amount of solution) 
in simple terms:    %amount + %amount = %total amount
We know don't know how much gallons of 60% solution we need so it will be represented as x. We dont know the total amount either so it would have to be both solutions added together so 50 + x. Now lets solve:
(0.60)(x) + (0.24)(50) = (0.50)(50 + x)            simplify/ distribute
0.6x + 12 = 25 +0.5x                  get all xs on one side and numbers on other
0.1x + 12 = 25
0.1x = 13    divide both sides by 0.1 to find x
x = 130
You need 130 gallons of 60% solution.
8 0
3 years ago
Read 2 more answers
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