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saw5 [17]
3 years ago
9

Please help! Im not sure if this is counted as math but yeah please help!

Mathematics
1 answer:
Artyom0805 [142]3 years ago
4 0

Answer:

1.543

2. they can only spend 325.8 on rent because that is the 30% of what they make every week

   each girl will have 380.10 left to spend

Step-by-step explanation:

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What is the circumference of the circle?
True [87]

Step-by-step explanation:

What is the circumference of the circle?

f) 52 cm2

e) 2610 cm2

5 0
3 years ago
Find the total surface area of the following cone. Leave your answer in terms of pi.
kramer

Answer:

90π cm²

Step-by-step explanation:

Given: Radius of circular base= 5 cm

           height= 12 cm

   

Now finding the surface of cone.

Formula; Surface area of cone= \pi rl+ B

Where; r= radius

l= slant height

B is the area of base, which is circle.

Area of circle (B)= πr²

Area of circle (B)= \pi \times 5^{2} = 25\pi

∴ Area of circle (B)= 25\pi

Finding slant height (l)

Formula; l= \sqrt{r^{2}+h^{2}  }

⇒l = \sqrt{5^{2}+12^{2}  } = \sqrt{25+144 }

∴ l= \sqrt{169} = 13\ cm

Next, using the formula for finding surface area of cone.

Surface area of cone= 5\times 13\times \pi + 25\pi

⇒ Surface area of cone= 65\pi +25\pi = 90\pi

∴ Surface area of cone= 90π cm²

6 0
3 years ago
Can you guys help me out!! Also can y’all show the work!
Lelechka [254]

Answer:

233.3 cubic units

Step-by-step explanation:

Volume of a pyramid

=  \frac{1}{3} × base area × height

The volume of the pyramid

=  \frac{1}{3}  \times (10 \times 10) \times 7

= \frac{1}{3}  \times 100 \times 7

= 233.333...

= 233.3 cubic units (rounded to the nearest tenth)

7 0
3 years ago
Read 2 more answers
After a 80 % ​reduction, you purchase a new DVD player on sale for ​$128. What was the original price of the DVD player​?
Gelneren [198K]
So with an 80% reduction the decimal is 0.80
128 \times 0.80 = 102.40
128.00 + 102.40 = 230.40
230.40 - 102.4 = 128.00
The original price was $230.40
5 0
3 years ago
A certain company's main source of income is selling socks.
Evgesh-ka [11]
Seven dollar with the
7 0
2 years ago
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