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saul85 [17]
2 years ago
11

The graph represents the relationship between the number of rocks a child collects, r, over a number of weeks, w. Which function

can be used to determine the number of rocks, r, a child will collect after w weeks? r = 15w + 5 r=115w+5 r = 5w + 15 r=15w+15

Mathematics
1 answer:
Komok [63]2 years ago
8 0

♡ The Question/Task(s)! ♡

<em>-Which function can be used to determine the number of rocks, r, a child will collect after w weeks?</em>

*୨୧ ┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Answer(s)! ♡

<em>-The answer is, </em><em>r = 5w + 15!</em>

<em>I apologize in advance if the answer is incorrect! ♡ </em>

*୨୧ ┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Explanation(s)/Step-By-Step! ♡

<em>-No Explanation(s)/Step-By-Step provided!</em>

*୨୧ ┈┈┈┈┈┈┈┈┈ ୨୧*

♡ Tip(s)! ♡

<em>-No Tip(s) Provided!</em>

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2 years ago
A group of students goes out to lunch. If two have burritos and five have tacos, the bill will be $19.50. If five students have
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Answer:

The price of the burrito is $3.5 and the price of the taco is $2.5.

Step-by-step explanation:

2x+5y=19.5

5x+2y=22.5

------------------

5(2x+5y)=5(19.5)

-2(5x+2y)=-2(22.5)

-----------------------------

10x+25y=97.5

-10x-4y=-45

-----------------------

21y=52.5

y=52.5/21=2.5

2x+5(2.5)=19.5

2x+12.5=19.5

2x=19.5-12.5

2x=7

x=7/2=3.5

x=3.5, y=2.5

The price of the burrito is $3.5 and the price of the taco is $2.5.

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3 years ago
Toya can run one lap of the track in 1 min. 3 sec., which is 90% of her younger sister niki's time. what is niki's time for one
Alex
Hello!

1 minute 3 seconds = 63 seconds

We must found out 63 is 90% of what number, using the percentage formula:

90 * 100 / 63 = 70

70 seconds = 1 minute 10 seconds

So, Niki's time for one lap is 1 minute 10 seconds (70 seconds).
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Do you have answer choices ?
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