3 years ago

-24 points lost on a test how many were incorrect

1 answer:

5 0

if there were 100 questions then 76 were correct, and 24 incorrect, you can simplify and rearrange the fraction depending on how many questions there were,

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How many solutions exist for the given equation? StartFraction one-half left-parenthesis x plus 12 right-parenthesis equals 4 x

Firlakuza [10]

Answer:

One solution x = 2

Step-by-step explanation:

Given the equation:

$\dfrac{1}{2}(x+12)=4x-1$

Multiply this equation by 2:

$2\cdot \dfrac{1}{2}(x+12)=2\cdot (4x-1)\\ \\x+12=2(4x-1)$

Use distributive property:

$x+12=8x-2$

Combine the like terms:

$x+12=8x-2\\ \\x+12-12=8x-2-12\\ \\x=8x-14\\ \\x-8x=8x-14-8x\\ \\-7x=-14\\ \\7x=14\\ \\x=2$

Thus, this equation has one solution x = 2

7 0

3 years ago

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Slove <br>A. 115°<br>B. 58°<br>C. 50°<br>D. 226°

Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

The angle is total is 138 degrees. Part of the entire angle is already given (the 88 degree measure), so all you have to do is subtract 88 from 138, which is 50.

6 0

3 years ago

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8x11=(8x10)+(1x10) how can I make it true?

icang [17]

You could make it true by making it (8x10) plus (8x1)

Explanation: 8x11=88 and 8x10=80 and 8x1=8 and 80+8=88

6 0

3 years ago

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A pickup truck traveled a distance of 210 miles in 5 hours. If the pickup truck travels at the same speed, how many miles would

Zinaida [17]

252 miles is correct