We're glad you stopped by Rob is saving to buy a new MP3 player For every 13 he earns babysitting he saves 9 On Saturday Rob earned 78 babysitting How. This page is here to walk you through essential details with clear and straightforward explanations. Our goal is to make your learning experience easy, enriching, and enjoyable. Start exploring and find the information you need!
Answer :
Rob saved $54 when he earned $78 babysitting.
What is ratio?
Ratio basically compares quantities, that means it show value of one quantity with respect to other quantity.
If a and b are two values, their ratio will be a:b,
Given that,
For every $13 babysitting, Rob saves $9.
Also, Rob earned $78 babysitting.
To find the money that Rob saved,
Use ratio property,
On 13 babysitting = $9 saved
on 78 babysitting = 9 x 6 = $54 saved.
The required money that Rob saved is $54.
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Rob saved a total of $54 on Saturday.
The total amount Rob saved on Saturday is $54.
To determine how much Rob saved, we first need to calculate how much he saved per dollar earned babysitting:
$9 saved / $13 earned = $0.69 saved per dollar earned.
Then, we multiply this by the amount he earned on Saturday: $0.69 per dollar x $78 earned = $53.82, which rounds up to $54.
