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3 years ago

17 Solve the inequality and graph the solution. 3(x+5) > 12

Mathematics

1 answer:

garri49 [273]3 years ago

3 0

Answer:

x > -1

Step-by-step explanation:

3(x + 5) > 12

Distribute

3x + 15 > 12

Subtract 15 to both sides

3x > -3

Sivide both sides by 3

3x/3 > -3/3

x > -1

Hope this helps and pls do mark me brainliest if you can:)

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at the elementary school fun fair,the ratio of the number of adults to the number of kids is 4:7. If there are 159 more kids tha

Oxana [17]

the ratio of the number of kids is 4:7

that means for every 7 kids we have 4 adults

7 kids ---- 4 adults

the difference is 3

we dived the difference of the kids between the difference of the ratio

150/3 = 50

the number we obtained must be multiply by the ratio of each part

7(50) = 350 number of kids

4(50)=200 number of adults

there are 200 adults at the fun fair

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1 year ago

Please help. Im dying for the explanation. I will mark you brainalist.

AlekseyPX

Step-by-step explanation:

Given that the mean of the numbers is 12

$mean = \frac{sum \: \: of \: observations}{total \: number \: of \: observations}$

so here

let's that one as x and another one as 2x since it is given that one is twice the other

Therefore we get

$mean = \frac{13 + x + 4 + 16 + 6 + 2x}{6}$

Given mean = 12

$12 = \frac{39 + 3x}{6}$

$72 = 39 + 3x$

$3x = 33$

$x = 11$

Hence it's 11 and 22

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