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mr Goodwill [35]
3 years ago
12

If y = kx, what is the value of k if y = 20 and x = 0.4?

Mathematics
1 answer:
True [87]3 years ago
8 0
Set up an equation 20=k(0.4)....to find k divide 20 by 0.4
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Ilia_Sergeevich [38]
\bf 5x=45^2\implies x=\cfrac{45^2}{5}\implies x=\cfrac{2025}{5}\implies x=405
8 0
3 years ago
Steve has at most $80 to spend at a store. He wants to buy a movie that costs $22. He also wants to buy DVDs that cost $7.00 eac
Degger [83]

Answer:

80 is less than or equal to 22+7x

8 DVDs

Step-by-step explanation:

I don't have the inequality signs sorry if you don't know its the symbol thats opening to the left with a line underneath

80 is less than or equal to 22+7x

subtract 22

58 is less than or equal to 7x

divide and flip the sign to the right

x is greater than or equal to 8.29

so he can buy 8 DVDs in total

5 0
3 years ago
How much is 44000. times 10?
maxonik [38]
When multiplying by multiples of 10, move the decimal place one place over to the right. 44,000 becomes 440,000.
5 0
2 years ago
Read 2 more answers
Val tossed a coin 20 times. The results were 8 heads and 12 tails. What is the experimental probability of tossing heads?
Andrew [12]

Answer:

  2/5 or 0.40

Step-by-step explanation:

Val's result for heads is ...

  8/20 = 2/5 = 0.40

4 0
2 years ago
What is the answer to this <br> 10−(4y−8)=2−5y
Harrizon [31]
The answer to this math problem is y=-16
8 0
3 years ago
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