3 years ago

Identify the value of a

Mathematics

1 answer:

Amanda [17]3 years ago

4 0

Use exponential law, we have

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Write the inequality:<br><br> Two less than twice a number is less than a half.

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Answer:

2x-2<1/2

Step-by-step explanation:

when the problem says "two less than" it means we are subtracting 2 from something, in this case, that something is "twice a number" as the problem states. So we would write 2x where x is a variable that represents any number so we have 2x-2<1/2.

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during a sale , a shop allows discount of the marked price of clothing . What will a costumer pay for a dress with a marked pric

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Step-by-step explanation:

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Translate the sentence into an equation.

GREYUIT [131]

Answer:

3* (b+9) = 4

Step-by-step explanation:

b is the unknown number

Three times the sum of a number and 9 is 4.

3* (b+9) = 4

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3 years ago

the volume of a triangular prism is 42 cubic centimeters. what is the volume of a similar prism that is twice as large as large

Dmitriy789 [7]

Answer:

The volume of the similar prism is $336\ cm^{3}$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z-----> the scale factor

x----> the volume of the larger prism

y----> the volume of the smaller prism

$z^{3}=\frac{x}{y}$

In this problem we have

$z=2$ -----> the scale factor

$y=42\ cm^{3}$

substitute and solve for x

$x=42(2^{3})=336\ cm^{3}$

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The price of gasoline was 96¢ a gallon<br> before it went up 25%. How much did<br> it go up?

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It went up 24c because 25% of 96c is 24c

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