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miss Akunina [59]
3 years ago
11

2 less than four times a number is equal to twice a number increase by 8 write an equation and solve to find the value of x

Mathematics
1 answer:
Tom [10]3 years ago
5 0
4x - 2 = 2x + 8
2x -2 = 8
2x = 10
x = 5

4(5)-2 = 2(5)+8
20-2 = 10+8
18 = 18
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HELP ME PLEASE IM SO LOST
DiKsa [7]
A=10ft because A is 8ft so round that to the nearest ten your answer is 10ft
6 0
3 years ago
Read 2 more answers
How do you solve this?
solong [7]

It looks like your equations are

7M - 2t = -30

5t - 12M = 115

<u>Solving by substitution</u>

Solve either equation for one variable. For example,

7M - 2t = -30   ⇒   t = (7M + 30)/2

Substitute this into the other equation and solve for M.

5 × (7M + 30)/2 - 12M = 115

5 (7M + 30) - 24M = 230

35M + 150 - 24M = 230

11M = 80

M = 80/11

Now solve for t.

t = (7 × (80/11) + 30)/2

t = (560/11 + 30)/2

t = (890/11)/2

t = 445/11

<u>Solving by elimination</u>

Multiply both equations by an appropriate factor to make the coefficients of one of the variables sum to zero. For example,

7M - 2t = -30   ⇒   -10t + 35M = -150 … (multiply by 5)

5t - 12M = 115   ⇒   10t - 24M = 230 … (multiply by 2)

Now combining the equations eliminates the t terms, and

(-10t + 35M) + (10t - 24M) = -150 + 230

11M = 80

M = 80/11

It follows that

7 × (80/11) - 2t = -30

560/11 - 2t = -30

2t = 890/11

t = 445/11

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2 years ago
The news stations said that their polls showed that 9% of voters would vote in favor of passing the law 600 of the 6,342 voters
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No. 9% of 6,342 is 570.78. Rounded, it's close to 600, but not exact.
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The answer to the problem is A
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How many liters are in 8 quarts?
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Answer:

7.57082 liters

Step-by-step explanation:

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