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Elan Coil [88]
3 years ago
5

-400 = -8 (2+6r) solve​

Mathematics
1 answer:
Leto [7]3 years ago
6 0

Answer: r=8

Step-by-step explanation:

-400/-8=400/8=5, then 48=6r equals 8.

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You need 112 K-cups for a party. A box of K-cups costs $16 for 36 K-cups. What is the minimum amount of money you will spend?
makkiz [27]

Answer:

$49.60

Step-by-step explanation:

The equation setup I used for this was as follows: $16 x (112/36)

Using PEMDAS, you'd start with the division part, 112/36. Although, I did this a bit differently, and being a bit further in school, I don't know if you go through this where you're at.

Start by factoring 112 into 4(28). This leaves you with 4(28)/36.

Next, cancel 4 out of 36. Since 4 is the common factor in 28 and 36, you cancel the four out of the equation, leaving you with 28/9. Convert this to its decimal form, 3.1.

Finally, take the 3.1 and multiply that by $16, which comes out to $49.60.

5 0
2 years ago
PLEASE HELP
Nikolay [14]

Answer:

204,160,000

Step-by-step explanation:

Assuming the sample is a good representation of the people from the United States.

Since there were 1,000 surveyed... and 638 of them were wearing glasses,  that makes a proportion of 638 out of  1,000 people, or 63,8 / 100 people... so 63.8%... or 0.638

So, if we assume that the US population is of 320 million, how many people does that make wearing glasses.... we just have to multiply 320M by 0.638

G = 320,000,000 * 0.638 = 204,160,000

8 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%5Cbf%7B%20%7B15%7D%5E%7B2%7D%20%5Ctimes%20%20%7B3%7D%5E%7B2%7D%20%20%20%5Cdiv%20%20%5Csqrt
34kurt

\\ \tt\Rrightarrow 15^2\times 3^2\div \sqrt[3]{125}+9^3

\\ \tt\Rrightarrow 3^25^2\times 3^2\div 5^1+3^33^3

\\ \tt\Rrightarrow 3^45^1\div 3^6

\\ \tt\Rrightarrow 3^{-2}5

\\ \tt\Rrightarrow \dfrac{1}{3^2}5

\\ \tt\Rrightarrow \dfrac{5}{9}

7 0
2 years ago
Alex, Bob, and Claudia split 126 cm wire evenly among themselves. They then proceeded to cut their pieces of wire into smaller,
Westkost [7]
<h3>Answer:</h3>
  • Bob
  • 18 cm
<h3>Step-by-step explanation:</h3>

If Alex cut his wire 18 times, he ended up with 19 equal pieces. He kept 7, so has 7/19 of his 1/3 of the wire.

Bob cut his wire 20 times, so ended up with 21 pieces, of which he kept 9. So he has 9/21 = 3/7 of his 1/3 of the wire.

Claudia kept 1/13 of her 1/3 of the wire, so has the smallest piece.

Bob kept (3/7)·(1/3)·126 cm = 18 cm.

Alex kept (7/19)·(1/3)·126 cm ≈ 15.47 cm.

Bob kept the longest part of the original wire.

3 0
3 years ago
Colleen McHugh wishes to deposit checks for $13.75, $92.08, and $8.21 into her account. She would like to receive $15.00 in cash
CaHeK987 [17]

her total deposit is 98.94

4 0
3 years ago
Read 2 more answers
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