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Verizon [17]
2 years ago
6

On mr robinsons last history test for this marking period. the average score was 98. Fourty students took the test and 39 studen

ts scored 100. What was the score of the student who did not score 100 on the test?
Mathematics
1 answer:
BabaBlast [244]2 years ago
6 0

Answer:

20

Step-by-step explanation:

\displaystyle \frac{39(100)+x}{40}=98\\\\3900+x=3920\\\\x=20

Therefore, the remaining student scored a 20 (which sounds weird, but I'm going with it).

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A rectangle has dimensions 7 ft x 12 ft. Which of the dimensions describe a rectangle that is similar to this rectangle?
kotegsom [21]

Answer:

C) 21 ft x 36 ft

Step-by-step explanation:

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3 years ago
Sarah paid a food bill of $13.74 with a $20 bill. How much change was she owed? A. $6.74 B. $5.26 C. $6.26 D. $33.74
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3 0
3 years ago
Read 2 more answers
Let h(x) = x*2 + kw - 8. If h(-1) = -5, what is the value of h(4)?<br> Help
Alisiya [41]

Answer:

h(4) = 0

Step-by-step explanation:

Hoping its ' kx '

h(x) = x^2 + kx -8 \\\\h(-1) = (-1)^2 + k(-1) - 8\\\\-5 = 1 - k -8\\\\-5 = -k -7\\\\-5 + 7 = -k\\\\2 = -k\\-2 = k

Now we have k = -2. We will find h(4).

h(4) = (4)^2 + (-2)(4) - 8 = 16 -8 - 8 = 0

4 0
3 years ago
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