251.3 ft. I am in 5th grade and I know this.
Answer:
x=-6 and y=-3
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Step-by-step explanation:
Step: Solve−3x+y=15 for y:
−3x+y=15
−3x+y+3x=15+3x (Add 3x to both sides)
y=3x+15
Substitute 3x+15 for y in−3x+7y=−3:
−3x+7y=−3
−3x+7(3x+15)=−3
18x+105=−3(Simplify both sides of the equation)
18x+105+−105=−3+−105 (Add -105 to both sides)
18x=−108 divide both side by 18
x=-6
Answer:
2 4/20
Step-by-step explanation:
4 × 2 = 8
8 + 3 = 11
11/4 × 4/5
11 × 4 = 44
4×5= 20
44/20
Simplified is
2 4/20
I hope this helps you
1)
9500.10%=950 in one year
7.950=6650 in 7 years
9500+6650=16150 total
2)
9000.11%=990 in one year
8.990=7920 in 8 years
9000+7920=16920 total
3)
13000.10,5%=1365 in 14 months
13000+1365=14365 total
4)
20000.18,5%=3700
20000+3700=23700
The discount offered on each backpack reduces the mean, median and mode.
<h3>What is the mean, median and mode?</h3>
The mean, median and mode are measures of central tendency. The means is the average of a set of numbers. The median is the number that is in the center of a set of numbers. The mode is the number that occurs most frequently of a set of numbers.
When the discount is applied, the prices of the backpacks become smaller. As a result, the mean, median and mode reduce also.
For example, assume that there are 3 backpacks with the following prices $12, $30 and $30. The mean is 24. The median is $30. The mode is $30. After the discount, the prices become $6, $24 and $24. The mean is 18. The median is $24. The mode is $24.
To learn more about mean, please check: brainly.com/question/25842202