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Gnesinka [82]
4 years ago
15

How to solve a one step equation of R+3= -6 1/2 please show all the work

Mathematics
1 answer:
IgorC [24]4 years ago
6 0
Solve for R:
R + 3 = -(1/2 + 6)
Put 1/2 + 6 over the common denominator 2. 1/2 + 6 = (2×6)/2 + 1/2:
R + 3 = -(2×6)/2 + 1/2
2×6 = 12:
R + 3 = -(12/2 + 1/2)
12/2 + 1/2 = (12 + 1)/2:
R + 3 = -(12 + 1)/2
12 + 1 = 13:
R + 3 = -13/2
Subtract 3 from both sides:
R + (3 - 3) = -13/2 - 3
3 - 3 = 0:
R = -13/2 - 3
Put -13/2 - 3 over the common denominator 2. -13/2 - 3 = (-13)/2 + (2 (-3))/2:
R = (-13)/2 - (3×2)/2
2 (-3) = -6:
R = (-6)/2 - 13/2
(-13)/2 - 6/2 = (-13 - 6)/2:
R = (-13 - 6)/2
-13 - 6 = -19:
Answer:  R = (-19)/2
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x - 11

Step-by-step explanation:

Let f(x) = -5x - 4 and g(x) = 6x - 7.

f(x) + g(x)

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What is the solution to<br> 4/5=20/(x-5)?<br> answer please
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Answer:

x =30

Step-by-step explanation:

in order to evaluate the solution 4/5=20/(x-5)?

solution

the first step to take is to cross multiply

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120/4 = 4x/4

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x =30

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Four friends want to take a vacation together, so each one gets a prat-time job. Each person has 6 weeks to save $750 for the va
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Answer:

Only Friend A and Friend B met the target of saving $750 for their vacation

Step-by-step explanation:

From the question, we are to find out who achieved their goal of saving $750 in 6 weeks. We would analyse the options we were given

Friend A: Works 20 hours per week at $6.95 per hour.

1 week = 20 hours

6 weeks = 20 × 6

= 120 hours

The friend each $6.95 per hours earns, the amount earned in 6 weeks =

120 hours × $6.95

= $834

Friend A met the target

Friend B: Works 25 hours per week at $5.85 per hour.

1 week = 20 hours

6 weeks = 25 × 6

= 150hours

The friend each $5.85 per hours earns, the amount earned in 6 weeks =

150 hours × $5.85

= $877.5

Friend B met the target of saving $750.

Friend C: Works 15 hours per week at $8.25 per hour.

1 week = 15 hours

6 weeks = 15 × 6

= 90hours

The friend each $8.25 per hour earns, the amount earned in 6 weeks =

90 hours × $8.25

= $742.5

Friend D did not meet the target of saving $750

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1 week = 11 hours

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= 66 hours

The friend each $10.80 per hour earns, the amount earned in 6 weeks =

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Friend D did not meet the target of saving $750

Therefore, from the above calculation, only Friend A and Friend B met the target of saving $750 for their vacation.

8 0
3 years ago
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