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belka [17]
3 years ago
14

Five less than twice the value of a number is equal to three times the quantity of

Mathematics
1 answer:
MissTica3 years ago
6 0

Answer:

These types of questions are not daunting if you break it down. First look at  "Five less than twice the value of a number."

"Twice the value of a number" is simply 2x.

"Five less" is simply -5, so for the first part we have (2x-5)

Next, analyze the second part. "Three times the quantity of four more than one half the number."

Looking at "Three times the quantity" simply means "3 times something".

"the quantity of four more than one half the number" is 4 + "one half the number" or 4 + (1/2)x.

So the second part is simply 3(4+x/2).

Finally we finish the entire equation, (2x-5) = 3(4+x/2) then solve for x.

2x-5 = 12 + (3/2)x

2x-(3/2)x = 17

x/2 = 17

x=34

Checking the left side, (2x-5) = 2(34) - 5 = 63.

Checking the right side, 3(4+(34/2)) = 3(4+17) = 3(21) = 63.

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  1. 9/20 hours doing math for 1 hour reading

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1. You have done the math. Copy your answer into the blanks that are waiting for it.

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An article claims that 12% of trees are infested by a bark beetle. A random sample of 1,000 trees were tested for traces of the
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0.68

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