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Sloan [31]
3 years ago
9

-12=f-7 help please

Mathematics
2 answers:
Lisa [10]3 years ago
8 0

Answer:

f=-5

Step-by-step explanation:

1) Add 12 to both sides

2) You should get f=-5

lianna [129]3 years ago
6 0

Answer:

\huge \boxed{F=-5}\checkmark

Step-by-step explanation:

First, switch sides.

\displaystyle F-7=-12

Then, add by 7 from both sides of equation.

\displaystyle F-7+7=-12+7

Simplify, to find the answer.

\displaystyle -12+7=-5

\huge \boxed{F=-5}, which is our answer.

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Dr. Irvine saw 130 patients in one week. The ratio of kids to adults that he saw is 3 to 7. If k represents the number of kids a
Vitek1552 [10]

Answer:

<u>The correct answer is </u>

<u>C. k+d=130 </u>

<u>7k = 3d</u>

<u>Number of kids Dr. Irvine see in a week is 39.</u>

Step-by-step explanation:

1. Let's review the information given to answer the question correctly:

Number of patients Dr. Irvine see in a week = 130

Radio of kids to adults = 3:7 or 3/7

Number of Kids = k

Number of adults = d

2. Let's find the equations system that should be set up to find out how many kids Dr. Irvine see

k + d = 130 (Number of patients Dr. Irvine see in a week)

Including the ratio:

7k = 3d

Replacing d:

d = 130 - k

Now substituting:

7k = 3 * (130 - k)

7k = 390 - 3k

10k = 390

k = 390/10

<u>k = 39</u>

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3 years ago
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strojnjashka [21]
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At the same rate, 31 inches of wire will cost 124 cents.

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Answer:

the answer is d.

Step-by-step explanation:

D} the independent variable is cows, and the dependent variable is milk.

The independent variable is cows, and the dependent variable is milk.

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sana nakatulong :-)

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