3 years ago

Two paperback books cost a total of

Mathematics

1 answer:

KengaRu [80]3 years ago

3 0

Answer:

20 dollars

Step-by-step explanation:

I think 20+20+20=60 then 60-40=20

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25 hours

Step-by-step explanation:

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2 years ago

Armando also thinks the first question should be worth $5. However, he thinks a contestant's winnings should double with each su

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If EF - 3x - 11, FG = 4x-10, and EG - 28, find the values of x, EF, and FG. The drawing is not to scale.

Gnom [1K]

Answer:

Part 1) $x=7$

Part 2) $EF=10\ units$

Part 3) $FG=18\ units$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the value of x

we know that

$EG=EF+FG$ ---> by addition segment postulate

we have

$EG=28\ units\\EF=3x-11\\FG=4x-10$

substitute

$28=(3x-11)+(4x-10)$

solve for x

$28=7x-21$

$7x=28+21$

$7x=491$

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step 2

Find the value of EF

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substitute the value of x

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step 3

Find the value of FG

$FG=(4x-10)$

substitute the value of x

$FG=4(7)-10=18\ units$

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3 years ago

Quadratic Equations Solve for x. x2+2=102 Enter the solutions for the equation in the boxes.

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$16x.15=$2.40
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Hopefully this is helpful.

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2 years ago