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Verizon [17]
1 year 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]1 year 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).

You might be interested in
Tyrone has 8/9 of a foot of string. He needs to cut pieces of string that are 1/4 of a foot long. How many whole 1/4 foot pieces
Gekata [30.6K]

9514 1404 393

Answer:

  3

Step-by-step explanation:

You can use your number sense to realize that 8/9 is between 3/4 and 1, so Tyrone can only get 3 whole pieces from his string.

__

If you like, you can do the division ...

  (8/9)/(1/4) = (8/9)(4/1) = 32/9 = 3 5/9 . . . . . 3 whole pieces

Or, you can compare decimal values.

  1 piece = 0.25 ft

  2 pieces = 0.50 ft

  3 pieces = 0.75 ft

  4 pieces = 1.00 ft

String length = 0.888.... ft (more than 3; less than 4 pieces)

4 0
2 years ago
Read 2 more answers
Did I get these all right
Leviafan [203]
Yep! They are all right! Great job, could write a bit better.... sorry
3 0
2 years ago
What is the domain of the function y=2VX-6?
lisabon 2012 [21]

Answer:

(-infinity, infinity)

Step-by-step explanation:

I assume it's y = 2x-6 which is a linear function. The line goes on forever.

5 0
2 years ago
Which graph correctly compares the volumes, V, of rectangular pyramids with different heights, h, when their bases all have the
VARVARA [1.3K]

Answer:the correct answer is D

Step-by-step explanation:

Hope this help but can you tell me what your answer?

8 0
2 years ago
Read 2 more answers
An electrician needs to cut a 49 m piece of wire into two pieces so that one piece is 5 m longer than the other piece. What is t
gulaghasi [49]

The length of the shorter wire that the electrician cuts so that the difference between those two is of 5 m is 22.5.

Given to us

An electrician needs to cut a 49 m piece of wire into two pieces so that one piece is 5 m longer than the other piece.

<h3>What are the two equal parts of the wire?</h3>

We know that the length of the wire is 49 m, therefore, to cut the wire in two equal parts divide the total length of the wire by two,

\dfrac{49}{2} = 24.5

Thus, the length of each side will be 24.5.

<h3>What is the length of the shorter piece of wire?</h3>

Since we need to cut the wire such that one side of the wire is 5 less than the other, we already know the length of the equal sides deduct (5/2) from both sides to create a difference between the length of the wire.

Length of the shorter wire = 24.5 -2.5 = 22.5

Length of the longer wire = 22.5 + 5 = 27.5

Hence, the length of the shorter wire that the electrician cuts so that the difference between those two is of 5 m is 22.5.

Learn more about Lengths:

brainly.com/question/8552546

3 0
1 year ago
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