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lbvjy [14]
3 years ago
12

Joshua and his children went into a bakery and he bought $15 worth of donuts and cookies. Each donut costs $1.75 and each cookie

costs $1. He bought a total of 12 donuts and cookies altogether . Determine the number of donuts and the number of cookies that Joshua bought .
Mathematics
2 answers:
Natalija [7]3 years ago
7 0

Answer:

Joshua bought 12 cookies & ABOUT 7 donuts.

Step-by-step explanation:

Mumz [18]3 years ago
4 0

Answer:

The number of donuts bought is 4 while the number of cookies bought is 8

Step-by-step explanation:

Joshua bought donuts and cookies. The cost of each donuts is $1.75 and the cost of each cookies is $1. He bought a total number 12 donuts and cookies altogether. But the number of donuts bought and the number of cookies bought is not given.

Let the number of donuts bought = a

Let the number of cookies bought = b

The total cost of the donuts and cookies bought = $15

The total number of donuts and cookies bought = 12

Therefore,

1.75a + 1b = 15....................................(i)

a + b = 12.............................................(ii)

b = 12 - a

Inserting the value of b in equation (i)

1.75a + 12 - a = 15

1.75a - a = 15 - 12

0.75a = 3

a = 3/0.75

a = 4

Inserting a in equation(ii)

4 + b = 12

b = 12 - 4

b = 8

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