Tyler needs at least $205 for a new video game system. He has already saves $30. He earns $7 an hour at his job. Write and solve an inequality to find how many hours he will need to work to buy the system. Interpret the solution.

Answers

Answer 1
Answer: amount needed=earned+already have
205=earned+30
earned=7 times number of hours=7h

205≤7h+30
we used the less than or equal to because he needs at least 205, means 205 or greater must be earned


205≤7h+30
minus 30 both sides
175≤7h
divide both sides by 7
25≤h
needs to work at least 25 hours
Answer 2
Answer: so, first, gather your important information:

"at least $205"
"already has $30"
"$7 per hour"

now rewrite this into numbers and symbols:

"at least $205" ... >/= 205 (his money MUST be over 205)
"already has $30" ... +30 (he's already saved 30, so add it)
"$7 per hour" ... 7h (he makes 7 an hour)

put all of those together.
7h + 30 >/= 205

this is your inequality. seven dollars an hour plus the thirty dollars he already saved must equal at least 205.

now, solve it for h:
7h + 30 >/= 205 ... subtract 30
7h >/= 175 ... divide by 7
h >/= 25

because your h variable stands for the hours worked, he must work at least 25 hours to have enough money to buy his new video game system.

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Answers

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Answers

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You pay $10.32 for 8 music downloads. What is the rate of cost per download?

Answers

the answer is 1.29 hope i helped

let x = cost per 1 download (rate of cost per download)
now we set up a proportion:
(1)/(8) =        (x)/(10.32)
1 download
OVER
8 downloads
EQUALS
x (see top for x)
OVER
$10.32
when we cross multiply, we get
10.32=8x
divide both sides by 8 to get:
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Parallel lines and intersecting lines are perpendicular lines explained

Answers

parallel lines are two lines in the same plane that will never intersect with each other.  Intersecting lines are lines that pass through each other at some point.  perpendicular lines are lines that intersect each other at 90 degree angles.
I hope this helps.
parallel lines never touch, intersecting lines cross, and perpendicular lines cross at a 90 degree angle. Hope that helped.

Please help me with ALL of them?!

Answers

Answer:

D , H, A, I

Step-by-step explanation:

These are approximates, don't take this to heart.

Answer is D. H. A. I.

Two angles with measures (6x + 60) and (90) are supplementary. What is the value of x?

Answers

Supplementary angles add up to 180, so 
6x+60+90 = 180 and solve for x
6x= 30
x=5
supplementary means that the angles add to 180, so solve the equation 6x+60+90=180. 6x=30 x=5