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Ber [7]
2 years ago
8

Alison had 310 rocks in her rock collection. After three months, her collection increases by 40%. How many rocks does Alison hav

e now?
Mathematics
1 answer:
satela [25.4K]2 years ago
5 0

Answer:

434

Step-by-step explanation:

310 times .4 (percentage) = 124 which is how much she gained, then you add that onto the original amount to find how many she has now, which is 434

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Length of the bases and h is the height, to answer the question. How many square feet of grass
Aleonysh [2.5K]

Answer:

There are 7,725 square feet of grass on the trapezoidal field

Step-by-step explanation:

Here in this question, we are interested in calculating the square feet of grass present on the trapezoidal field.

What this question is actually asking us is to calculate the area of the trapezoid-shaped grass field.

To calculate this area, what we need to do

simply is to use the formula for the area of a trapezoid.

Mathematically, the area of a trapezoid can be calculated using the formula;

Area of trapezoid = 1/2 * (a + b) * h

where a and b refers to the length of the parallel lengths of the trapezoid and h refers to the height of the trapezoid.

From the question;

a, b = 81ft and 125 ft

h = 75 ft

Substituting these values, we have :

Area = 1/2 * (81 + 125) * 75

Area = 1/2 * 206 * 75 = 83 * 75 = 7,725 ft^2

6 0
2 years ago
Hell me plz, and can plz explain as well
Montano1993 [528]
The sixth graders collected $250 of their $300 goal. The seventh graders collected $250 of thier $450 goal.

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Reduce: $25 / $45 = 5/9
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3 years ago
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5.5 pints is the answer to this

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