William has 90 to spend on juice boxes for a preschool picnic. Each juice box cost 2.51 what is the maximum number her can buy

Mathematics

2 answers:

Artemon [7]3 years ago

8 0

Answer: 35.8565737052

lora16 [44]3 years ago

3 0

Answer:

35 x 2.51 = 87.85

36 x 2.51 = 90.36

If he cannot spend more than 90 than the maximum amount he can afford is 35.

Step-by-step explanation:

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$1)formula \: for \: linear \: equation \: is \: \\ ax + by + c = 0 \\ 2) \: solution \: of \: the \: equation \: y = 9x - 3 \\ (2,15) \: is \: the \: solution \: \\ on \: substitutuing \: the \: points \\ 15 = 9(2) - 3 \\ 15 = 18 - 3 \\ 15 = 15 \\ hence \: proved\\ 3) \: given \:( k,7) \: is \: a \: solution\\ \: of \: y = - 4x + 1 \\ on \: substitutuing \: the \: points \\ 7 = - 4k + 1 \\ 4k = - 7 + 1 \\ 4k = - 6 \\ k = \frac{ - 6}{4} \\ k = \frac{ - 2}{3}$