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Sauron [17]
3 years ago
14

A professional carpet cleaner service charges $30 plus $25.50 per hour to come to your home. If your total bill from this compan

y is $119.25 before taxes, how many hours were you charged?
Mathematics
1 answer:
andrew-mc [135]3 years ago
4 0

Answer:

3.5 hours

Step-by-step explanation:

30 + 25.50x = 119.25 \\ 25.50x = 89.25 \\ x = 3.5

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Jenny bought a 5 notebooks and 2 pencils, and the total was 9 dollars.
weeeeeb [17]
You would solve this with simultaneous equations, so if we write it as:
5n + 2p = 9
3n + 2p = 6
(subtract)
2n = 3
÷ 2
notebooks = 1.5

Now you would substitute it in:
(3 × 1.5) + 2p = 6
4.5 + 2p = 6
- 4.5
2p = 1.5
÷ 2
pens = 0.75

So your final answer is notebooks are $1.50 and pens are $0.75, I hope this helps!
6 0
3 years ago
A solid cylinder of radius 7cm is 10cm long.find it's total surface area
Anton [14]

Answer:

C.  238π  cm^3.

Step-by-step explanation:

Surface area = 2 * area of the circular ends + area of the curved length

= 2π r^2 + 2π r* l

= 2 π 7^2 + 2π 7 * 10

= 98π + 140π

= 238π  cm^3.

7 0
3 years ago
Read 2 more answers
Please help I have been stuck for a while
goldfiish [28.3K]

Answer:

B. 50 degrees

Step-by-step explanation:

I am not 100% sure and if this is a right triangle, then it's measure is 90 degrees. So, 140 degrees minus 90 degrees would total, 50 degrees.

6 0
3 years ago
Read 2 more answers
What a person puts into their relationship is proportional to what they feel they receive; this balance is called
Gnesinka [82]

Answer:

dj

p;smfdr

Step-by-step explanation:

8 0
2 years ago
Draw the straight line y = 2x - 3
wel

Answer:

See the picture down below

Step-by-step explanation:

When you are drawing a line you should first mark the y-intercept, which in this case it's (0,-3) because the the b in the equation is -3. Then we will go 2 units up then 1 unit right. Keep going until you've run out of room. Then draw the line going through all the points.

8 0
3 years ago
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