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pantera1 [17]
3 years ago
8

2) which of these is a one-step equation? A) x + 9 = 21 B) x = 11 C) 2x + 9 = 21

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Because the only step is to subtract 9 from both sides and then you get x=12

:)

Sauron [17]3 years ago
3 0

Answer:

there is no one step equation becuz

x+9 = 21

take 9 to the other side becos both are same variables then

21-9 = x

hence x= 12

next x=11 question can't be answered becuz this is not a complete question

2x+9 = 21

21-9 = 2x

12=2x

x=

12

-----

2

hwnce 12/2 = 6 therefore x= 6

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Multiply the polynomial expressions below,
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Step-by-step explanation:

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3 years ago
A father left 280 acres of land to be divided among his sons Al and Bob in the ratio 4:3, respectively. How many acres should Al
BartSMP [9]

Answer:

160 acres

Step-by-step explanation:

Given data

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3 0
3 years ago
According to the 2000 Census the population of Canton was 7,720. Holly Spring's population was 3,200. Canton's population increa
qwelly [4]
Canton: 7,720 and increases at a rate of 80 people per year.
Holly Spring: 3,200 and increases at rate of 120 people per year.

Let x be the number of years.

Canton = 7,720 + 80x
Holly Spring = 3,200 + 120x

7,720 + 80x = 3,200 + 120x
80x - 120x = 3,200 - 7720
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x = -4520 / -40
x = 113

It would take 113 years before the populations are equal.

7,720 + 80x = 3,200 + 120x
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5 0
3 years ago
Read 2 more answers
Find three prime numbers that add up to another prime number.
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5+7+11=23
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3 years ago
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How many questions would I have to miss on a 25 question test to get 88% ?
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25-22= 3
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7 0
3 years ago
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