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Katarina [22]
3 years ago
5

X-b=a solve for x please show work tnx

Mathematics
1 answer:
7nadin3 [17]3 years ago
3 0
Okay so, you would just have to simply do one step for this literal equation. 

x-b=a
  +b +b 
x=a+b

You would just have to add b to both sides to cancel out the -b on the left side because you have to isolate x to solve for x. So you add b to both sides, and then the -b gets cancelled out and the right side becomes a+b. 

So x = a+b 

Hope this helped!
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What is the output value of 2x^2-9x-5 input value is x=2
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2 years ago
You have total coins for a total of $. . You only have quarters and dimes. Let represent the number of quarters and represent th
Sonja [21]

Answer:

Quarters = 41

Dimes = 18

Step-by-step explanation:

Given

Coins = 59

Worth = \$12.05

d = dimes

q = quarters

Required

The number of each coin

The total coins can be represented as:

d + q = 59

1\ quarter = \$0.25 \\ 1\ dime = \$0.10

So, the worth of the coin is:

0.25q + 0.10d = 12.05

The equations to solve are:

0.25q + 0.10d = 12.05

d + q = 59

Make d the subject in: d + q = 59

d =59 - q

Substitute d =59 - q in 0.25q + 0.10d = 12.05

0.25q + 0.10(59 - q) = 12.05

0.25q + 5.9 - 0.10q = 12.05

Collect like terms

0.25q  - 0.10q = 12.05 - 5.9

0.15q = 6.15

Solve for q

q=\frac{6.15}{0.15}

q=41

Substitute q=41 in d =59 - q

d = 59 - 41

d = 18

So:

Quarters = 41

Dimes = 18

5 0
3 years ago
Please help, I will give brainliest. I am struggling badly.
alekssr [168]

Answer:

B because the line crosses the y axis at 4  and the slope will be -1 because the line is going downhill which therefore makes it negative

hope it helps:)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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