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Pachacha [2.7K]
3 years ago
11

Small notebooks cost $3.50 and large notebooks cost $5.00. She needs to buy 31 notebooks, and she has $134 to spend. How many sm

all notebooks and how many large notebooks can she buy?
Mathematics
2 answers:
lys-0071 [83]3 years ago
8 0
She can buy 38 small notebooks with 134 dollars and she can buy 26 large notebooks with 134 dollars
Darina [25.2K]3 years ago
6 0

Let's assume

number of small notebooks =x

number of large notebooks =y

we are given

total number of notebooks =31

so, we get

x+y=31

now, we can solve for y

y=31-x

we have

Small notebooks cost $3.50 and large notebooks cost $5.00

she has $134 to spend

so, we get

3.50x+5y=134

now, we can plug y

3.50x+5(31-x)=134

3.50x+5*31-5x=134

-1.5x+155=134

-1.5x+155-155=134-155

x=14

now, we can find y

y=31-14

y=17

so,

number of small notebooks is 14

number of large notebooks is 17.............Answer


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