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Shtirlitz [24]
3 years ago
14

Simplify this expression 10a + 2b -7a -5b

Mathematics
1 answer:
lyudmila [28]3 years ago
8 0

Answer:

3a-3b

Step-by-step explanation:

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How much simple interest would be earned on a certificate of deposit worth
Maru [420]

Answer:

Step-by-step explanation:

The simple interest formula is I = prt, where I is the interest earned, p is the initial investment, r is the interest rate as a decimal, and t is the time in years. Filling in according to our info:

I = 2000(.02)(5) so

I = 200

5 0
3 years ago
What is the slope of a line parallel to the line whose equation is: -2x + y = - 7?
Lostsunrise [7]

Answer:

2

Step-by-step explanation:

-2x+y=-7

Take the -2x and put it on the other side of the equation by changing the sign

y=-7+2x

Now put it in y intecpet form by putting the 2x first

y=2x-7

Slope is the number before the x.

so 2

Now knowing that parallel lines always have the same slope the answer is 2

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3 years ago
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Alik [6]

Answer:

120

Step-by-step explanation:

5 0
3 years ago
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Olenka [21]

Answer:

392

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What value of x makes this proportion true 3/x=15/40
r-ruslan [8.4K]
3/x=15/40
solve for x
multiply both sides by x
3=15x/40
multiply both sides by 40
120=15x
dvide both sdies by 15
8=x

the answer is 8

or you could simplifyy 15/40 to get 3/8
8 0
3 years ago
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