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Leviafan [203]
3 years ago
8

Tim answered all the questions on his math test but got 101010 answers wrong. He received 444 points for every correct answer, a

nd there was no penalty for wrong answers. His score was 767676 points. Write an equation to determine the total number of questions (q)(q)(, q, )on Tim's math test.
Mathematics
1 answer:
GuDViN [60]3 years ago
5 0

Answer:

4(q - 10) = 76.

q = 28.

Step-by-step explanation:

Let the number of questions be q.

The number Tim got right is therefore q - 10 questions.

4(q - 10) = 76

4q - 40 = 76

4q = 116

q = 116/4

q = 28.

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It would be A. Q=1/2*M
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If 15% off an item cost 36.21 then what would 100% of the item be?
harina [27]
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Read 2 more answers
What is the sum of the arithmetic sequence 151, 137, 123,..if there are 26 terms?
ElenaW [278]
First term: a1 = 151
common difference: d = -14 (we decrease by 14 each time, eg, 151-14 = 137)

nth term of this arithmetic sequence is...
an = a1+d(n-1)
an = 151+(-14)(n-1)
an = 151-14n+14
an = -14n+165

This will be used in the formula below

Sn = n*(a1+an)/2
<span>Sn = n*(151+(-14n+165))/2
</span><span>S26 = 26*(151+(-14*26+165))/2 ... replace every n with 26
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The final answer here is choice C) -624
<span>
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3 years ago
Find the solution set
AVprozaik [17]
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7 0
3 years ago
What is the y-intercept of the function f(x)=4 – 5x?<br> A:-5<br> B:-4<br> C:4<br> D:-5
Bogdan [553]

Answer: option C is the correct answer

Step-by-step explanation:

The y-intercept of the function is the point on the y or vertical axis at which the straight line cuts through it. The value on the y axis is read off as the y-intercept .

The equation of a straight line is modelled using the slope - intercept equation of

y = mx + c

Where m is the slope( change in value of y/ change in value of x.

c = the y-intercept

Looking at the function given,

f(x)=4 – 5x? Where f(x) is the same as y in our slope intercept equation.

Rearranging the function, it becomes

f(x)= – 5x +4

The intercept is 4

Option C is the correct answer.

7 0
3 years ago
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