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krek1111 [17]
3 years ago
14

Elijah is taking a multiple choice test with a total of 100 points available. Each question is worth exactly 2 points. What woul

d be Elijah's test score (out of 100) if he got 8 questions wrong? What would be his score if he got xx questions wrong?
Mathematics
2 answers:
zvonat [6]3 years ago
5 0

Answer:

Step-by-step explanation:

Luden [163]3 years ago
3 0

Answer:

84 points

y= 100-2x where y= total score (0 through 100) and x= # of questions wrong (0 through 50)

Step-by-step explanation:

100- 2(8) = y

100-16 = y

84=y

Since each question (x) is worth two points (2) we have to multiply each wrong question by two (2x). And then since we're deducting point from the possible points (100) we have to subtract (100-2x)

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I put 41 points.
Anna71 [15]
It is the first equation, 3x-y=-7.
It is the only equation that both sets of points satisfy as true.
3 0
3 years ago
What’s the fifth term of a sequence whose first term is 5 and whose common ratio is 3?
SSSSS [86.1K]

Answer:

405.

Step-by-step explanation:

This is a geometric sequence where the nth term = a1 r^(n -1).

Here a1 = 5 and r = 3 so

the fifth term a5 = 5(3)^(5-1)

= 5 * 81

= 405.

4 0
3 years ago
Eastville has a population of 32,000 and is gaining 500 people per year. Lakeside has a population of 45,000 and is losing 1,000
Semenov [28]

Answer:

  in about 8 2/3 years

Step-by-step explanation:

The population difference of 13000 people is being erased at the rate of 1500 people per year. It will be gone in ...

  13000/1500 = 26/3 = 8 2/3 . . . . years

The population of Lakeside will be 45000 -8667 = 36333 at that time. Eastside's population will be the same.

Eastville and Lakeside will both have populations of 36,333 in 8 2/3 years.

8 0
3 years ago
Which variable expression matches the word phrase "4 less than 2 times a number"
Xelga [282]

Answer:

2x - 4

Step-by-step explanation:

a number = x

x is being multiplied to 2

4 is being subtracted from 2 times x

Multiplication is first.

2x - 4

4 0
3 years ago
sum of the age of son and his father is60 and the six year ago the age of father is five time the son what is the age son ?​
natali 33 [55]

Step-by-step explanation:

...hope it help u.... ..

6 0
3 years ago
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