Which Expression can be used to solve 3/5÷7/10
A. 5/3*7/10
B. 5/3*10/7
C. 3/5*10/7
D. 3/5*7/10
This expression 3/5÷7/10 means
An option to solve the expression is inverting the fraction that is dividing and going to multiply
3/5 x 10/7 C.
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Verification
A and D are the same
Answer:
Step-by-step explanation:
2x+5y=12
3x+4y=11
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3(2x+5y)=3(12)
-2(3x+4y)=-2(11)
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6x+15y=36
-6x-8y=-22
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7y=14
y=14/7=2
2x+5(2)=12
2x+10=12
2x=12-10=2
x=2/2=1
x=1, y=2. (1, 2)
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I just provided you an example of a system of equations and I already solved it for you.
5x can be written as x + x + x + x + x
Answer:
Step-by-step explanation:
Find and compare the unit costs of the two different bottle sizes.
First:
$2.79/(6 oz) = $0.465/oz
Second:
$10.89/(14 oz) = $0.778/oz
Clearly, the larger (14 oz) bottle is a much better buy
