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kolbaska11 [484]
2 years ago
11

Solve 2x - 3 = 1 Solve for x

Mathematics
2 answers:
myrzilka [38]2 years ago
8 0

Answer:

x=2

Step-by-step explanation:

Add 3

2x=4

divide by 2

x =2

babymother [125]2 years ago
6 0
X= 2
To solve this you need to get the x by itself. To do this we must move the -3 to the other side of the equation. To do this we add 3 to both sides. Now we have
2x = 4
The next step is to divide both sides by 2 so that the x is alone. 4/2 is 2 so
x=2
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Mark is six years older than his brother Sam. The sum of their ages is 30. Let 'a' be Sam's age.
svlad2 [7]

Answer:

a = 12 years

Step-by-step explanation:

Mark is 6 years older than his brother Sam. Now, we are asked to represent Sam’s age by a. This means that if Sam is a years old, Mark is (a + 6) years old.

The sum of their ages is 30, this means that when we add their ages together, we get the sum of thirty.

Mathematically this means a + a + 6 = 30

2a + 6 = 30

This is the equation needed to get a. To get a , we proceed to solve the equation to completion.

2a = 30 - 6

2a = 24

a = 24/2

a = 12

8 0
3 years ago
Which steps could be used to solve this story problem?
Vedmedyk [2.9K]
Multiply 10 and 3 then subtract five from 10 add the product and the difference add that sum to 10
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3 years ago
Jenna uses 18 inches of ribbon for each box she wraps. How many yards of ribbon does she needs to wrap 4 boxes?
eduard

Answer:

Jenna needs 2 yards of ribbon to wrap 4 boxes.

Step-by-step explanation:

First, we can find how many inches of ribbon she needs.

18*4=72

She needs 72 inches of ribbon for 4 yards.

There are 36 inches in a yard.

72/36=2

Jenna needs 2 yards of ribbon to wrap 4 boxes.

6 0
3 years ago
Read 2 more answers
Pat has 8 flowerpots, and she wants to plant a different type of flower in each one. there are 10 types of flowers available at
ankoles [38]
10P8 = 10!/(10 - 8)! = 10!/2! = 1,814,400
8 0
3 years ago
An environmental study of a certain community suggests that t years from now, the average level of carbon monoxide in the air wi
icang [17]

Answer:

3.4625

Step-by-step explanation:

Given the equation:

Q(t)=0.05t^2 + 0.1t + 3.4 parts per million

Where t = time in years

By approximately how much will the carbon monoxide lvel change during the coming 6 months?

t = 6 months = 6/12 = 0.5 year

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Q(0.5) = 0.05(0.25) + 0.05 + 3.4

Q(0.5) = 0.0125 + 0.05 + 3.4

Q = 3.4625

Carbon monoxide level will change by approximately 3.4625 parts per million in 6 months

7 0
4 years ago
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