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Math Problems
Grade 8
Make predictions
Casho owns a small business selling ice-cream. She knows that in the last week
24
24
24
customers paid cash,
14
14
14
customers used a debit card, and
23
23
23
customers used a credit card.
\newline
If next week, she is expecting
300
300
300
customers, about how many would you expect to pay with cash? Round your answer to the nearest whole number.
\newline
Answer:
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Tallulah owns a small business selling clothing. She knows that in the last week
28
28
28
customers paid cash,
15
15
15
customers used a debit card, and
61
61
61
customers used a credit card.
\newline
If next week, she is expecting
1000
1000
1000
customers, about how many would you expect to pay with a debit card? Round your answer to the nearest whole number.
\newline
Answer:
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Deion owns a small business selling clothing. He knows that in the last week
45
45
45
customers paid cash,
6
6
6
customers used a debit card, and
37
37
37
customers used a credit card.
\newline
Based on these results, express the probability that the next customer will pay with cash as a decimal to the nearest hundredth.
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Claire saves
$
45
\$45
$45
one month and then each month thereafter she saves
$
4
\$4
$4
more than the preceding month for a
16
16
16
-year period
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A concert venue sold two types of tickets for an upcoming concert: reserved tickets and general admission tickets. Reserved tickets sold for
$
50
\$50
$50
each and general admission tickets sold for
$
34
\$34
$34
each. If
1520
1520
1520
tickets were sold for a total of
$
64000
\$64000
$64000
, which of the following systems could be used to find the number of reserved tickets,
r
r
r
, and the number of general admission tickets,
g
g
g
, that were sold?
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There were
6
6
6
times as many middle school students as elementary students signed up for a spelling bee competition. If
95
95
95
more elementary students had signed up, there would have been an equal number of middle school and elementary school students. How many students signed up for the spelling bee competition?
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Find the sum of the first
45
45
45
terms of the following series, to the nearest integer.
\newline
2
,
7
,
12
,
…
2,7,12, \ldots
2
,
7
,
12
,
…
\newline
Answer:
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Oliver volunteers on the weekend at the Central Library. JAs a school project, he decides to record how many people visit the library, and where they go. On Saturday,
385
385
385
people went to The Youth Wing,
355
355
355
people went to Social Issues, and
494
494
494
went to Fiction and Literature.
\newline
On Sunday, the library had
1400
1400
1400
total visitors. Based on what Oliver had recorded on Saturday, about how many people should be expected to go to Fiction and Literature? Round your answer to the nearest whole number.
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Corey owns a food truck that sells tacos and burritos. He only has enough supplies to make
81
81
81
tacos or burritos. He sells each taco for
$
5
\$ 5
$5
and each burrito for
$
7.50
\$ 7.50
$7.50
. Corey must sell a minimum of
$
510
\$ 510
$510
worth of tacos and burritos each day. If
47
47
47
burritos were sold, determine all possible values for the number of tacos that Corey must sell in order to meet the requirements.
\newline
Answer:
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Elizabeth is going to flip a fair coin
100
100
100
times.
\newline
What is the best prediction for the number of times that the coin will land tails up?
\newline
Choose
1
1
1
answer:
\newline
(A) Exactly
200
200
200
times
\newline
(B) Close to
200
200
200
times but probably not exactly
200
200
200
times
\newline
(C) Exactly
50
50
50
times
\newline
(D) Close to
50
50
50
times but probably not exactly
50
50
50
times
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