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laiz [17]
3 years ago
7

Kuri spent a total of $68 on trading cards. His collection contains two types of cards. A pack of trading card A cost $4, and a

pack of trading card B cost $7. How many packs of each type of trading card were purchased if the total number of packs is 11
Mathematics
2 answers:
devlian [24]3 years ago
8 0
4a+7b=68 go to mathpapa
Gre4nikov [31]3 years ago
7 0
Let x = the number of packs for trading card A
Let y = the number of packs for trading card B

x + y = 11
4x + 7y = 68

Try and solve for y first
x = 11 - y
Substitute
4(11 - y) + y =68
Y =8 then x= 3
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Chris pays a fee if the bank balance falls below $10 on the statement dae. Prior to the statement date her balance was -3.46. Th
Zina [86]

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Balance prior to statement date = - 3.46

Minimum bank balance to avoid penalty = $10

The amount of deposit, d made in time in other to avoid penalty fee?

Minimum amount that most have been deposited, d :

Balance prior to statement + d ≥ minimum bank balance to avoid penalty

-3.46 + d ≥ 10

d ≥ 10 + 3.46

d ≥ 13.46

Hence, the minimum amount that must have been deposited to avoid penalty is 13.46

4 0
3 years ago
Carl tells his friend Logan about a new music download service. Carl says that if you download x collections per month, your mon
harkovskaia [24]
D.Both Carl and Logan are incorrect
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3 years ago
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Although five of John's answers were incorrect, 90% of his answers were correct. How many questions did John answer in all?
fiasKO [112]

Answer:

John answered 50 questions.

Step-by-step explanation:

Although five of John's answers were incorrect, 90% of his answers were correct.

This means that 5 is 100 - 90% = 10% of the total number of questions, n. So

0.1n = 5

n = \frac{5}{0.1}

n = 50

John answered 50 questions.

7 0
2 years ago
How many surfaces does a rectangular prism have?
juin [17]
A rectangular prism has 6 surface.
4 0
3 years ago
,please help me solve these 2. problems I am having trouble
Harlamova29_29 [7]
Hi,

1) D

Working :
If the bell rings for 2 weeks straight that means it rings for 14 days.

The bell rings 48 times a day (2 * 24).

The answer is then: 48*14 = 672

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Working:

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864 divided into boxes of 8 = 864 / 8 = 108


4 0
3 years ago
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