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3 years ago

Solve the following inequality

Mathematics

2 answers:

Contact [7]3 years ago

5 0

Answer:

6 < u < 8

Step-by-step explanation:

10 > 5u/4 > 15/2

To solve this, we need to isolate the variable u

10(4) > 5u/4(4) > 15/2(4)

40 > 5u > 30

40/5 > 5u/5 > 30/5

8 > u > 6

It probably wants you to write it in order so,

6 < u < 8

Your welcome, and if you have any questions, feel free to comment! :D

fredd [130]3 years ago

3 0

$\\ \rm\hookrightarrow 10>5u/4>15/2$

Multiply by 5

$\\ \rm\hookrightarrow 40>5u>30$

Divide 5

$\\ \rm\hookrightarrow 8>u>6$

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Nitella [24]

Sarah has received £ 294

Solution:

Given that £980 is divided between Caroline, Sarah & Gavyn

Let "c" be the amount received by caroline

Let "s" be the amount received by sarah

Let "g" be the amount received by gavyn

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amount received by caroline = twice as much as Sarah

amount received by caroline = 2(amount received by sarah)

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amount received by sarah = three times as much as Gavyn

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Let us solve eqn 1, 2, 3 to get values of "c" "s" "g"

From eqn 2,

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Substitute eqn 1 and eqn 4 in eqn 3

$2s + s + \frac{s}{3} = 980\\\\\frac{6s + 3s + s}{3} = 980\\\\6s + 3s + s = 980 \times 3\\\\10s = 2940\\\\s = 294$

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Step-by-step explanation:

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Helppp!!!!!

gladu [14]

Answer:

fyi b's answer has imaginary numbers in it...

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