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Lana71 [14]
2 years ago
6

A student took a total of 4 tests over the course of 8 weeks. How many weeks of school will the student attend to take a total o

f 20 tests?
Mathematics
1 answer:
Julli [10]2 years ago
3 0

Answer:

4/8 = 20/x

20 x 8 = 160

160 ÷ 4 = 40

the student will attend 40 weeks of school

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Which algebraic expression represents “the quotient of a number and thirty”?
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Answer: 30/a

Step-by-step explanation:

Quotient means to divide. So the quotient of 30 and another number would be 30/a

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(Use Solving Systems by Graphing to find a solution for this question)
Ray Of Light [21]

Answer:

5 months

Step-by-step explanation:

One cellphone provider charges AED10 per month plus an activation fee of AED20.

If I used the services of this cellphone provider for x months, total charges for the services,

y = 10x + 20 --------(1)

Similarly, charges for the second cellphone provider for x months of uses will be,

y = 11x + 15 -------(2)

Input-output table for equation (1)

x      1           2            3            4            5

y     30        40         50          60          70

Input output table for equation (2)

x      1           2            3            4            5

y     26        37          48          59         70

From these tables, we find (5, 70) is a common point for both.

It reveals that after the uses of 5 months charges for both the cellphone providers will be same (y = $70)

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3 years ago
Point M is between points N and O on NO Find the length of NM if MO = 12.3 and NO = 26.9. A. 11.6 B. 14.6 C. 21.6 D. 38.2
sveta [45]
NM + MO = NONM + 12.3 = 26.9NM = 26.9 - 12.3NM = 14.6
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