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3 years ago

Consider the inequality -5(x+7)<-10 write inequality representing a solution for x

1 answer:

6 0

Perform indicated multiplication on left side first...

-5x-35<-10 add 35 to both sides

-5x<25 divide both sides by -5 (you must reverse sign because of division by a negative value too!)

x>5 or if you prefer...

x=(5, +oo)

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Mr. Waugh paid $42.00 for 12 gallons of gasoline. Ms. Peters paid $31.50 for 9 gallons of gasoline. What was theprice per gallon

dmitriy555 [2]

Answer:

$3.50 per pound

Step-by-step explanation:

Divide 42 by 12 or 31.5 by 9 and you get 3.5. In money, that is $3.50

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3 years ago

Read 2 more answers

Use the number line to compare the numbers.

aniked [119]

First of all if it is increasing then then it would start at the negative numbers. First is -1.2 second is 1/5 then it is 0.5 and finally 3/5

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3 years ago

10k to the third power + 8k to the second power + 10 divided by (k+1)

torisob [31]

10k^4+10k^3+8k^2+8k+10/k+1 not sure if this is what you are looking for or not hope it helps

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3 years ago

Solve the the equation by substitution<br>5x=-2y+48<br>x=-3y+20

tamaranim1 [39]

Answer:

(8, 4)

Step-by-step explanation:

i hope this helps :)

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2 years ago

Suppose j varies jointly with g and v, j=1 when g=6 and v=3. Find j when g=8 and v=11

Lady bird [3.3K]

j=4.88 when g=8 and v=11

Further explanation:

When the increase/decrease in one quantity cause increase/decrease in other quantity, it is called direct variation.

Variation is always accompanied by a variation constant.

<u>Given</u>

g and v vary directly with j

IT can be written as:

j∝gv

Putting the variation constant k

j = kgv

Putting g = 6 and v=3

$j = kgv\\1 = k * 6 * 3\\1 = 18k\\k = \frac{1}{18}$

So the value of k is 1/18 which makes the equation

$j = \frac{1}{18}gv\\ Putting\ g=8\ and\ v=11\\j = \frac{1}{18} * 8 * 11\\j = \frac{88}{18}\\ j =4.88$

So, j=4.88 when g=8 and v=11

Keywords: Variation, Direct Variation

Learn more about variation at:

#LearnwithBrainly

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3 years ago