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3 years ago

For which value of a are all the solutions of 2(x-5)>3x+a less than or equal 5?

1 answer:

6 0

$2(x-5)>3x+a \\
2x-10 > 3x+a \\
2x-3x>a+10 \\
-x>a+10 \ \ \ |\times (-1) \\
x$

The solutions must be less than or equal to 5.
$-a-10 \leq 5 \\
-a \leq 5+10 \\
-a \leq 15 \ \ \ |\times (-1) \\
a \geq -15$

All the solutions are less than or equal to 5 for a≥-15.

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lisabon 2012 [21]

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3 years ago

My hw says, "suppose E has a coordinate of -1 And EG= 7" what is the possible coordinate of G?

evablogger [386]

Answer:

-8,6

Step-by-step explanation:

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3 years ago

Read 2 more answers

Mr.Eastman drew triangle JKL,with a height of 12 inches and a base of 12 inches, and triangle XLZ, with a height of 8 inches and

34kurt

Answer:

Step-by-step explanation:

Area of triangle = 1/2 × Base × Height

Mr.Eastman drew triangle JKL,with a height of 12 inches and a base of 12 inches

Area of JKL = 1/2 × 12 inches × 12 inches

= 72 Square inches

triangle XLZ, with a height of 8 inches and a base of 16 inches. Which triangle has the greater area?

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3 years ago

Susan collected 5 cents at the recycling plant for each of her 78 cans how much did she collect all together

masya89 [10]

Answer:

$\$3.9$

Step-by-step explanation:

we know that

Susan collected 5 cents at the recycling plant for each of her 78 cans

To find out the total collected , multiply 5 cents by the total number of cans

$\$0.05(78)=\$3.9$

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3 years ago

Reading list

never [62]

9514 1404 393

Answer:

7 cm, 4.4 cm

Step-by-step explanation:

The side lengths can be found from the law of cosines. Each triangle has legs 3 cm and 5 cm. The angle between these will be 60° or 120°. Then the two sides of the parallelogram are ...

s = √(a² +b² -2ab·cos(C))

s = √(3² +5² -2·3·5·(±1/2)) = √(34 ±15) = {√49, √19}

The two side lengths are 7 cm and about 4.4 cm.

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3 years ago