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NeX [460]
3 years ago
6

6. A store sells 2 books for $8.25. At the

Mathematics
1 answer:
kipiarov [429]3 years ago
7 0
Try 135. I’m not foresee!
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In a class of 27 students, 14 play an instrument and 16 play a sport. There are 6
antiseptic1488 [7]

Answer: 1/3

Step-by-step explanation:

6 + 16 + 14 - 27 = 1/3

6 0
1 year ago
What is the solution of the inequality x+5<533?
olga_2 [115]
X + 5 < 533         Subtract 5 from each side
    - 5     -5
-----------------
x < 528
4 0
3 years ago
The number of bags of mulch you need to cover a planting area varies jointly with the area to be mulched (a) in sq ft and the de
Lena [83]

Answer:

  22 2/9

Step-by-step explanation:

When z "varies jointly" with x and y, it can be described by the formula

   z = kxy

Here, we have bags of mulch (n) varying jointly with area (a) and depth (d), both in feet. The given information can let us find the value of k.

  n = kad

  10 = k·(120)(1/4)

  10/30 = k = 1/3 . . . . . divide by the coefficient of k

Now, we can fill in the other values of interest.

  n = (1/3)·(200)·(1/3) = 200/9

  n = 22 2/9

You need 22 2/9 bags of mulch to cover 200 ft² to a depth of 4 inches.

_____

<em>Comment on the problem</em>

This problem requires the formula be written with both area and depth expressed in feet, yet it gives depth in inches. The formula can also be written using depth in inches. In that case, k = 1/36.

8 0
2 years ago
The Morris family bought 3 crates of eggs last week. Each crate had 18 eggs. Since then, they have eaten 25 of the eggs. How man
zzz [600]

Answer:

29

Step-by-step explanation:

3 x 8 = 54 - 25 = 29

5 0
2 years ago
The height of a soccer ball thrown of a hill can be modeled by the equation h = -16t^2 -8t +120.
inessss [21]

Answer:

120 feet

Step-by-step explanation:

You have to find the y-intercept to calculate the initial hight, this can be done by substituting o in for t

h(0)= -16(0)^2-8(0)+120

=120ft

4 0
2 years ago
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