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valina [46]
3 years ago
14

There were three quizzes for the week. The first quiz was worth twice as much as the second quiz. The third quiz was 10 points l

ess than the second quiz. The total points for the quizzes that week were 70 points. How much was each quiz worth.
Mathematics
1 answer:
iren2701 [21]3 years ago
6 0
X+y+z=70
x=2y
z=2y-10
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FOR BRAINLIST ANSWER AND 10 POINTS ANSWER ALL PLZ !!!!!
igor_vitrenko [27]
<h2>Greetings!</h2>

A)

<h3>If you can see, every 4 minutes the amount of water is increasing at a constant rate. </h3>

197 - 153 = 44

285 - 241 = 44

<h3>This means that at 8 minutes, because there is 153 gallons already in, we can divide 8 by 4 to see how many groups of 4 minutes there were. </h3>

8 ÷ 4 = 2

So then we can subtract two lots of 44 from 153:

153 - (44 x 2) = 65

<h3>So the starting amount was 65.</h3>

B)

<h3>The answer to B is the second option, because it is true that the amount of water is increasing. This is by 44 gallons per 4 minutes.</h3>

The amount of gallons per minute can be found out by dividing the amount by 4:

44 ÷ 4 = 11

<h3>So it is 11 gallons per minute.</h3>
<h2>Hope this helps!</h2>
3 0
3 years ago
What’s the solution for x-0= 0
Dominik [7]
I’m pretty sure it’s 0
7 0
2 years ago
35 multiple by 2/7.
erastova [34]

Answer:

the answer is 10

Step-by-step explanation:

6 0
3 years ago
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How do I complete the proof?
Likurg_2 [28]
The proof is to show your work
3 0
3 years ago
Write the phrase "Five subtracted from three times any number" as an algebraic expression
Dahasolnce [82]

Answer: 3x-5

Step-by-step explanation:

Five subtracted from three times any number can be represented as 3x-5.

4 0
3 years ago
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