3 years ago

The sum of a number and twenty-one is sixty-four.

Mathematics

2 answers:

aksik [14]3 years ago

5 0

Answer:

Step-by-step explanation:

64-21= 43 :))))) ez

alexandr1967 [171]3 years ago

3 0

Answer:

Step-by-step explanation:

I hope you pass your test!

EDG2021 <3

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Helena needs 3.5 cups of flour per loaf of bread and 2.5 cups of flour per batch of muffins. She also needs 0.75 cup of sugar pe

vesna_86 [32]

Let
x = loaves of bread
y = batches of muffins
You must make a system of two equations with two unknowns that describe the problem
3.5x + 2.5y = 17 --- (1)
0.75x + 0.75y = 4.5 --- (2)
Resolving we have
x = 6-y (from (2))
replacing in (1)
3.5 (6-y) + 2.5y = 17
21 - 3.5y + 2.5y = 17
y = 21-17 = 4
Then substituting in (2)
x = 6-y = 6-4 = 2
Answer
Helena could bake:
2 loaves of bread
4 batches of muffins

8 0

3 years ago

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nirvana33 [79]

The

Answer: number 3

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3 years ago

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asambeis [7]

Answer:

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Step-by-step explanation: