The expression which shows the amount of money, in dollars Maddie spent on mailing letters in March is 3.7 +0.74 y.
Given Maddie mailed y letters in January. She mailed 3 times as many letters in February. In March she mailed 10 letters more than half of what she mailed in January and February.
Expression is combination of numbers, symbols, fraction, coefficients which are not found in equal to form.
Letters mailed in January=y
Letters mailed in February=3y
Letters mailed in March=10+(y+3y)/2
=10+2y
Amount of mailing of 1 letter=$0.37.
Amount of mailing of letters in March=0.37(10+2y)
=3.7+0.37*2y
=3.7+0.74y
Hence the expression which shows the amount of letters mailed in March is 3.7+0.74 y.
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Answer:
B. The mean absolute deviation is 3
Step-by-step explanation:
Answer:
c.
Step-by-step explanation:
* To make this simpler, reduce these two fractions in lowest terms.
I am joyous to assist you anytime.
You don't multiply liters of gasoline by distance.
They are<u> directly proportional </u>- the more gasoline you have the longer is the dictance you can go.
So it's <u>cross multiply</u>.
Another examlpe:
you are paid by hour for your work. The more hours you have worked, the more you are paid:
hours payment
2 h $36
5 h x
You would multiply 10•70 if they were inversely poportional values
For example:
1. speed and time of ride by given distance {the greater the speed the less time you need for a ride}
speed time
10 m/s 75 s
8 m/s x
2. price and kolos of apples - the higher the pice the less of kilos you can buy by given cash
price kilos of apples
$2 8
$4 x
Answer:
(8,6)
Step-by-step explanation:
All you need to do is to evaluate the location of the dot:
The format of an ordered pair is (x,y).
x is the horizontal axis, going from <em>left to right.</em> This means that Boston is 8 to the right of the center, meaning that the x value is 8.
y is the vertical axis, going from <em>down to up.</em> This means that Boston is 6 up from the center, meaning that the y value is 6.
Overall, this gives you the coordinates of (8,6).