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pashok25 [27]
3 years ago
5

Sam bought a new couch on sale at the discount furniture store. The original cost of the couch was $550. The sale price was $449

. Sam has a coupon for 30% off the couch if he bought a $99 lamp. If he bought the $99 lamp, what was total cost of his couch and lamp before tax?
Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0
30%x550=165
550-165=385
385+99=385.00
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The diameter of a wheel of a lorry is 150cm. If the lorry travels 376.8m, how many times does the wheel rotate?
tresset_1 [31]
<h3>Answer:  79 full rotations</h3>

====================================================

Explanation:

150 cm = 150/100 = 1.5 m

The wheel has a diameter of 1.5 meters

The circumference of the wheel is

C = pi*d

C = pi*1.5

C = 1.5pi

C = 4.71238898038469

I'm using my calculator's stored version of pi to get the most accuracy.

Then we divide the 376.8 over the circumference found

(376.8)/(4.71238898038469) = 79.9594434093682

Despite being very close to 80, we must round down to 79 because we don't have enough to get that full 80th rotation. In other words, we have 79 full rotations and then some change leftover.

Though for the sake of simplicity, I can see how it's useful to say "about 80 rotations" if 79 seems a bit clunky. I'll stick with 79 however. Let me know if your teacher instructs otherwise.

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2 years ago
A painter earns $15 per hour.What is the minimum number of hours he must work to earn at least $200?
babunello [35]
12 hours in order to make 200 dollars
5 0
3 years ago
What is the vlaue of (2/7)³ ?
vekshin1

Answer:

0

Step-by-step explanation:

5 0
3 years ago
The question= find the percent of each number
RUDIKE [14]

Answer:

78 x 160 /100

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Step-by-step explanation:

6 0
3 years ago
Convert 185 degrees Celsius to degrees Fahrenheit. Round<br> your answer to the nearest degree
lakkis [162]

Hello! :3

Answer:

The Correct Answer is <u><em>365 °F</em></u>

Step-by-step explanation:

The C to F formula is(C ~x~ 9/5) + 32 = F

When we do 185 for C in the formula, we get(185 ~x~ 9/5) + 32 = F.

To solve,  (185 ~x~ 9/5) + 32 = F. we first multiply 9 by 185, then we divide the product by 5, and then finally we add 32 to the quotient to get the answer.

185~x~9=1665

1665  /5=333

333+32=355

Therefore, the answer to 185 C to F is 365 which can be written like this

⇒ 185 °C = 365 °F

hope this helps you!

Have an Awesome Thursday!

-Joseph-

3 0
2 years ago
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