3 years ago

Twice a number x increased by 10 is 52

Mathematics

1 answer:

musickatia [10]3 years ago

4 0

Answer:

x = 21

Step-by-step explanation:

the equation is 2x + 10 = 52

2x = 42

x = 21

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a first class postage stamp was $0.02 in 1885. the same first class postage stamp in 2006 was $0.39. what is the percent of incr

Eddi Din [679]

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3 years ago

Zola is thinking of a number. If the number is divided by 7.5, the quotient is 62. what is zolas number?

____ [38]

Okay, so I would multiply 62*7.5 to get 465.

To check the solution, make sure it follows the rules as in the word problem.

If you divide 465 by 7.5 you do get 62, so the solution is 465.

Mathematically, the equation would be

x
- = 62
7.5
I would multiply x/7.5 by 7.5/1 (to cancel it out) and 62/1 by 7.5 which is basically the same solution as above.

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3 years ago

Read 2 more answers

How many sides does a regular polygon have if its interior angles <br><br>A. 156<br>B. 162

Kruka [31]

I) 156 degrees
The exterior angle is 180-156
=24
The number of sides= $\frac{360}{24}$
The number of sides= 15 sides

ii) 162 degrees
The exterior angle= 180-162
=18
The number of sides= $\frac{360}{18}$
= 20 sides

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3 years ago

Match each root with its meaning.

IRISSAK [1]

Port is to carry
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3 years ago

PLEASE HELP!!!!! 20 POINTS!!!

EastWind [94]

Answer:

(x+4)(x+1)(2x-1)

Step-by-step explanation:

factors should have minus sign

(x+4)(x+1)(2x-1)

4 0

4 years ago