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anzhelika [568]
2 years ago
15

PLEASE help me! I need this by Today!! anyone

Mathematics
2 answers:
geniusboy [140]2 years ago
3 0

Answer:

x=12

Step-by-step explanation:

Cross multiply them:

84 = 7x

Divide By 7 on both sides

12 = x

And there is the answer. Sorry I couldn't explain better Im really not feeling good today

Katarina [22]2 years ago
3 0

Answer:

x=12

33 calls

Step-by-step explanation:

For 3/7 = x/28

Cross multiply. 3•28 = 7x

Seriously just use a calculator. But if you're not allowed to, then go ahead and do the next step which is divide by 7.

(3•28)/7 = x

The 28/7 is just 4.

You still have the 3.

3•4 = x

12 = x

SECONDLY,

Compare

calls/hour= calls/hour

18/6 = c/11

18/6 can be simplified. It is 3/1.

3/1 = c/11

Crossmultiply.

3•11 = 1c

33 = c

The call center will get 33 calls in 11 hours.

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Determine whether the improper integral converges or diverges, and find the value if it converges.
salantis [7]

Answer:

Integral will be diverging in nature

Step-by-step explanation:

We have given integral \int_{5}^{\infty}\frac{3}{2}x^2dx

Now after solving the integral

[\frac{3}{2}\frac{x^3}{3}] limit from 5 to infinite

So [\frac{3}{2}\frac{\infty^3}{3}]-[\frac{3}{2}\times \frac{5^3}{3}]=\infty

As after solving integral we got infinite value so integral will be diverging in nature

7 0
2 years ago
If 7 people are in your family and everyone is supposed to drink 7/8ths of water each day, how much water is needed for the whol
laiz [17]

Answer: 6.125 or 6¹/₈ units of water

Step-by-step explanation:

There are 7 people in the family and each of them are mean to drink 7/8ths of water.

The amount of water all 7 should take is therefore:

= 7 * 7/8

= 49/8

= 6.125 or 6¹/₈ units of water

5 0
2 years ago
5y +2 -4y I need help
Yuliya22 [10]

Answer:

Simplified- 1y+2 or y+2

Step-by-step explanation:

To simplify this equation, subtract the common variables.

(5y-4y)+2

This turns into..

1y+2 or y+2

3 0
2 years ago
What is the surface area of the regular pyramid?
zimovet [89]

You would have to do 18x2 then 14x2.

5 0
3 years ago
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a person invested $6300 for 1 year part at 8% part at 10% and the remainder at 15%. The total annual income from these investmen
Lunna [17]

Answer:

Step-by-step explanation:

let x be part at 8%, y be part at 10% and z be part at 15%

(1) x+y+z=6300

the amount of money invested at 15% was $100 more than the amounts invested at 8% and 10% combined. so

(2) z=x+y+100

The total annual income from these investments was $766. so

0.08x+0.1y+0.15z=766 or

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substitute (2) into (1)

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(4) 2x+2y=6200

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(5) 23x+25y=75100

solving (4) n (5)

x=1200

y=1900

z=1200+1900+100=3200

7 0
3 years ago
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