Mathematics: Martha bought a $60 skirt at 40% off and a $40 blouse at 20% off. what percent discount did she receive on the total purchase?

Martha bought a $60 skirt at 40% off and a $40 blouse - id6040401871544, jennarosebrand3518

Ответ:

josierednour285

31.12.2021

$Total\ price\ of\ all\ items:\\\\
skirt+blouse=60+40=100\$\\\\
SKIRT's discount:\\\\
40\%=0,4\\\\
0,4*60=24\$\\\\BLOUSE's discount:\\\\
20\%=0,2\\\\
0,2*40=8\$\\\\
Total\ discount:\\8+24=32\$\\\\
Percentage\ of\ total\ discount:\\\\
\frac{32}{100}*100\%=32\%$

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Ответ:

Joeyoman

05.10.2021

Mathematics

$20W+50A\geq 350$

Step-by-step explanation:

we are given that A robot is expected to filter pollution out of at least 350 liters of air and water.

Also It filters air at the rate of 50 liters per minute, and it filters water at the rate of 20 liters per minute.

The inequality for number of minutes the robot should filter air (A) and water (W) to meet this expectations can be writte as follows:

$20W+50A\geq 350$

Hence the required inequality has been formulated.

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Martha bought a $60 skirt at 40% off and a $40 blouse at 20% off. what percent discount did she receive on the total purchase?

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