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3 years ago

Need help on number 15,16,17 and 18

Mathematics

1 answer:

Nat2105 [25]3 years ago

4 0

15. Minutes in 365 days.
First, there are 60 minutes in an hour and 24 hours in a day. So there are 1440 minutes in a day. Multiply that by the 365 days, and you get: 1440 x 365 = 525,600.

16. Not absolutely sure about this one, but i reckon it's 16/31, as there are 16 odd days.

17. Area of a triangle is 1/2 x h x b
Now the two shaded area are = the unshaded area. So it's only one triangle, really. So it's 6 x 8 divided by 2 = 24cm²

18. 82 l in ml = 82,000

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3 years ago

A 6 inch personal pizza has 640 calories, with 240 of those from fat. A 12 inch pizza is cutinto 8 slices. Estimate the number o

MissTica

Given:

Number calories in a 6-inch pizza = 640 calories

For the pizza of 6 inch

$A=\pi(3)^2=9\pi$

For the pizza of 12 inch

$A=\pi(6)^2=36\pi$

Number calories in a 6-inch pizza = 640 calories, therefore:

$\frac{A_{6\text{ inch}}}{A_{12\text{ inch}}}=\frac{640}{x}$

Substitute:

$\begin{gathered} \frac{9\pi}{36\pi}=\frac{640}{x} \\ Simplify \\ \frac{1}{4}=\frac{640}{x} \end{gathered}$

And solve for x:

$\begin{gathered} 1\cdot x=4\cdot640 \\ x=2560 \end{gathered}$

Now, Estimate the number of calories in one slice of a 12 inch pizza:

$\frac{2560}{8}=320$

Answer: 320 calories

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1 year ago

Write the ratio as a fraction in simplest form. 32:42

maks197457 [2]

16/21 is your answer

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3 years ago

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zmey [24]

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g over 3

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24 × 3g
--- ----
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Step-by-step explanation:

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