Answer:
Given the statement: One pound of grapes costs $1.55.
Let x be be the cost of 3.5 pounds of grapes.
Equivalent ratios states that the two ratios that express the same relationship between numbers.
Therefore, by equivalent ratio:
[tex]\frac{1 pound}{cost of 1 grapes} =\frac{3.5 pound}{cost of 3.5 grapes}[/tex]
then, we have;
[tex]\frac{1}{1.55}=\frac{3.5}{x}[/tex]
Cross multiply the above equation; we hve
[tex]x = 1.55 \times 3.5[/tex]
x = 5.425
therefore, the cost of 3.5 pounds of grapes is, $5.425
The cost of 3.5 pounds of grapes is $5.43.
An equation is an expression used to show the relationship between two or more numbers and variables.
Let y represent the cost of the total grapes, hence:
Since each pound of grape cost $1.55, hence 3.5 pounds of grapes is:
1.55 / 1 = y / 3.5
y = $5.43
The cost of 3.5 pounds of grapes is $5.43.
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