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kompoz [17]
3 years ago
10

Simplify each mathematical expression 2(7y − 3) + (5y + 2) − (9y − 4)

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
3 0

Answer:  10y

Step-by-step explanation:

2(7y-3) +(5y+2) -(9y-4)  Apply the distributive property.

14y - 6 + 5y + 2 - 9y + 4   Combine like terms  

(14y+5y-9y) + (-6+2+4)

10y  

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how much must you deposit in an account that pays 8% interest, compounded monthly, to have a balance of $1000 after 3 years?
Makovka662 [10]

Answer:

1000=N(1 + .08/12)^36 where N is the initial deposit.

So  1000=N(1.00666667)^36

N=1000/(1.00666667)^36

ln N=ln 1000/(1.00666667)^36=ln 1000-36 ln (1.00666667)

ln N=6.6685517411100682158933244766027

N=e^6.6685517411100682158933244766027=$787.25463 as the initial deposit.

7 0
3 years ago
.<br> 6. What is the y-intercept of the graph of 3x - 5y = 10?<br><br> i need help asap!!
Sever21 [200]

Answer:it is -2

Step-by-step explanation:

First you need to put it into y=mx+b

Then it would be -5y=-3x+10

Divide all numbers by -5 so it would look like this

y=3/5x-2

-2 is the y intercept

Add me

5 0
3 years ago
Three friends each have some ribbon. Carol has 54 inches of ribbon, Tino has 10.5 feet of ribbon, and
zzz [600]

Answer:

1800 inches, 150 feet, and 50 yards

Step-by-step explanation:

First, lets start in inches. multiply 45 by 3, to get 135 feet, and add that with 10.5 to get 145.5 feet. multiply that by 12 to get 1746 inches, and add 54 to that to get 1800 inches. divided that by 12 to get 150, and divided 150 by 3 to get 50.

4 0
3 years ago
Leslie played Tetris yesterday. She said, "If you multiply my score by 6, then
UNO [17]

Answer:

(6x+45)÷3=835

2x+15=835

2x=820

x=410

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7 0
3 years ago
3. Find m D<br> (2x+14)<br> (x + 7)<br> E<br> B<br> 60<br> 23<br> 53<br> 30
pickupchik [31]

Answer:

Step-by-step explanation:

∠ABC + ∠CBD = 90 so filling in the expressions for these angles:

(2x + 14) + (x + 7) = 90 and

3x + 21 = 90 and

3x = 69 so

x = 23. To find the measure of angle ABC in particular, we sub in a 23 for x:

x + 7 --> 23 + 7 = 30°, the last choice there.

8 0
3 years ago
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