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Natalija [7]
4 years ago
12

PLEASE HELP!!!!!!! this is really hard!!!

Mathematics
1 answer:
bekas [8.4K]4 years ago
4 0
When Anne Betty and Cynthia compared the amount of money each had, they discovered that Anne and Betty together had $12 Betty and Cynthia together had $18 and Anne and Cynthia together had $10. 
<span>Who had the least amount of money? and how much was it?
a +b = 12
b + c = 18
a + c = 10
So what I did is simple XD A logical guess and check. I started with a = 1, but that was to little. And also didn't match up. So I kept going up and got a = 2, b = 10, and c = 8</span>
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Answer:

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Step-by-step explanation:

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4 years ago
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Complete the steps to find the value of .<br> 72°<br> (7x + 24)
stellarik [79]

Answer: x ≈ 6.86°

Step-by-step explanation:

Firstly, set them equal to each other:

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8 0
3 years ago
What would this be, please help me.
Sveta_85 [38]

Answer:

I think it is 6.

Step-by-step explanation:

on a parrelelogram parrelell sides r =. this means that 6x-15=x+15

we can subtract x from both sides and get 5x-15=15. add 15 to both sides and get 5x=30. Divide both sides by 5 and get x=6.

8 0
4 years ago
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kiruha [24]

Answer:

See solution below

Step-by-step explanation:

Given the expression

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Substitute

\frac{sin(60-x)-sin(x+60)}{sin(x)cos(x)} \\= \frac{sin60cosx-cos60sinx)-sinxcos60-cosxsin60)}{sin(x)cos(x)} \\=  \frac{-2cos60sinx)}{sin(x)cos(x)} \\= \frac{-2(1/2)sinx)}{sin(x)cos(x)} \\= \frac{-1}{cos(x)}\\= \frac{1}{cos(x)}\\ \\= -sec(x) Proved

8 0
3 years ago
Holly is taking out a loan in the amount of 10000 her choices for the loan are a 4 year loan at 4% simple interest and 6 year lo
nexus9112 [7]

Answer:

what is this question

Step-by-step explanation:

3 0
3 years ago
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