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dusya [7]
3 years ago
7

If 2a-b:2a+b=1:2find the value of a:b​

Mathematics
1 answer:
weqwewe [10]3 years ago
3 0

Answer & Step-by-step explanation:

2a - b : 2a + b = 1 : 2

2a - b = 1

-                         Elimination

2a + b = 2

-b - (b) = -1

-2b = -1

b = 0.5

---------------------------------------------------------------------------------

2a + b = 2           Substitution

2a + 0.5 = 2

2a = 1.5

a = 0.75

--------------------------------------------------------------------------------------

a:b

0.75 : 0.5

or

3/4 : 1/2

Hope this helps!!!

 

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The equation is 12m+12=15-1
Fudgin [204]

Answer:

1/6

Step-by-step explanation:

Solve-

Subtract the numbers:

12m+12=15 - 1

12m+12 = 14

Subtract 12 form both sides of the equation:

12m+12= 14

12m+12-12 =14-12

Simplify:

Subtract 1: 12m+12-12=14-12

12m=14-12

then 2; 12m=14-12

12m=2

Divide both sides of the equation by the same term:

12m=2

12m/12=2/12

Simplify again:

Cancel out the terms:

12m/12=2/12

m=2/12

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m=2/12

m=1/6

Soulution= 1/6

6 0
2 years ago
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melomori [17]

Answer:

Step-by-step explanation:

It costs $7 for 1 baseball and Mrs.Weeks is buying 36 baseballs, that would be: $7 X 36 = $252

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$252 + $120 = $372 for the baseballs and softballs

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5 0
3 years ago
What is an equation of the line that passes through the point (3, -8) and has a slope -2?​
Nataliya [291]

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Step-by-step explanation:

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2 years ago
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Answer:

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Step-by-step explanation:

The truck can be filled with a total of 20 ton.

There are already 14 ton inside the truck, so if we call x the weight of goods that we can still add into the truck, we know that (x+14) must be equal at most at 20. Therefore, the inequality becomes:

x+14\leq 20

Solving it, we find

x\leq 6

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3 years ago
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masya89 [10]
The answer is letter D, 20.4.
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3 years ago
Read 2 more answers
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