la200564
18.12.2021 •
Mathematics
Charlotte ordered 1 portion of charcoal grilled chicken, 1 portion of garlic bread, and 2 portions of stewed rice. Sarah ordered 2 portions of garlic bread and 3 portions of stewed rice. Naomi ordered 3 portions of charcoal grilled chicken, 2 portions of garlic bread, and 2 portions of stewed rice.
Charlotte's take-out costs $11, Sarah’s take-out costs $13.50, and Naomi's take-out costs $19.
Which of the following systems of equations can be used to find the cost of 1 portion of charcoal grilled chicken, c, 1 portion of garlic bread, g, and 1 portion of stewed rice, s?
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Ответ:
y - ball
x+y=1.1
x=y+1
(y+1)+y=1.1
y=.05
Plug the Y value back into the original equation to find X
x+.05=1.1
x=1.05
Bat cost: 1.05
Ball cost: .05