kimberlylove387
19.07.2019 •
Mathematics
Tia owns a fruit shop and is selling a fresh lot of apples and oranges. she wants the ratio of apples to oranges sold to be 4 to 2. tia wants to sell a total of 42 apples and oranges. how many apples should she sell?
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Ответ:
28 apples
Step-by-step explanation:
Let
x> the number of apples
y > the number of oranges
we know that
x+y=42 > equation A
x/y=4/2 > x=2y > equation B
Solve the system of equations by substitution
substitute equation B in equation A and solve for y
2y+y=42
3y=42
y=42/3=14 oranges
Find the value of x
x=2y > x=2(14)=28 apples
Ответ:
4 x 4 = 16
-4 x 7 = -28
-9 x 900,000 = 8,100,000