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natta225 [31]
3 years ago
10

Which equation is equivalent to x + x - (-3) = 12?

Mathematics
1 answer:
Bogdan [553]3 years ago
3 0

Answer:

C.) 2x+3 = 12

Step-by-step explanation:

x+x=2x

2x-(-3) is 2x+3

Rate this brainliest

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The ratio of boys to girl in a school is 5:7 if there are 600 students, how many girls are there
larisa86 [58]

Answer:

350 girls

Step-by-step explanation:

So,

The secret to solving problems with ratios is to find the value of one unit.

5:7 = 12 units total

To find one unit, divide the total number of students by the total number of units.

600/12 = a

Simplify

50/1 = a

50 = a

The value of each unit is 50.

Now, multiply the units by the numbers in the ratio.

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250 = boys

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350 = x

There are 350 girls.

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Answer:

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Step-by-step explanation:

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