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4 years ago

Five times a number minus 12 is 48

Mathematics

2 answers:

WITCHER [35]4 years ago

7 0

Answer:5x-12=48

Step-by-step explanation:

5×x=5x

Morgarella [4.7K]4 years ago

7 0

Answer:

Step-by-step explanation:

In order to answer this question, you need to make an equation in the format of mx+b=y. This equation would look like this:

5x-12=48

Then, just solve for x. First, you would do the opposite of what your b is doing to both sides to move it. For instance, your b is being subtracted. So, add it to both sides to move it. It would then become:

5x=60

Then, you would do the opposite of what your m is doing to both sides to move it. So in this equation, you would divide both sides by 5. It would then give you:

x=12

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The perimeter of the rectangle above is:

Nonamiya [84]

Step-by-step explanation:

given,

length = 4x²

breadth/width = y²

we know,

perimeter = 2l + 2b

so,

2(4x²) + 2(y²)

→ 8x² + 2y²

option A is correct

hope this answer helps you dear...take care and may u have a great day ahead!

4 0

3 years ago

A day care worker found 28 children absent one day during an epidemic of chicken pox. If this was 35% of the total number of chi

creativ13 [48]

Answer:

80 children attend this day care,

Step-by-step explanation:

Let x represent the number of children that attend this day care center. The day care worker found 28 children absent one day during an epidemic of chicken pox.

If this was 35% of the total number of children attending the day care center, it means that the number of children absent one day during the epidemic of chicken pox can be expressed as

35/100 × x = 0..35×x = 0.35x

Therefore,

0.35x = 28

x = 28/0.35= 80

7 0

3 years ago

How do I explain and show the work for a math word problem of If the baby was 8 lbs. 9 oz. and doubled her weight the first six

harkovskaia [24]

Answer:

5 lb 11⅓ oz

Step-by-step explanation:

First, convert the weight at birth from pound and ounces to just ounces.

8 lb × 16 oz/lb + 9 oz = 137 oz

The baby doubles its weight in the first six months. That means its weight increases by 137 oz over 6 months. To find how much weight was gained in 4 months, write a proportion.

137 / 6 = x / 4

6x = 548

x = 91 ⅓

The baby gained 91 ⅓ oz in 4 months, or 5 lb 11⅓ oz.

5 0

4 years ago

Expanded form of 5(2m)³

-BARSIC- [3]

Answer:

$40m^{3}$