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Nesterboy [21]
3 years ago
12

ANSWER ASAP!!! A trash compactor can compress 2/3 kilograms of trash in 1 minute. How many minutes would it take to compress 1/4

kilograms?
A. 1/4 × 2/3 = 1/6
B. 2/3 + 1/4 = 11/12
C. 1/4 ÷ 2/4 = 3/8
D. 2/3 ÷ 1/4 = 8/3
Mathematics
1 answer:
masha68 [24]3 years ago
5 0
The answer is D if correct
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3250 - M = 1500 + 2(M - 500)
bija089 [108]

Answer:

M=916 2/3

Step-by-step explanation:

3250-m=1500+2(m-500)

3250-M=1500+2m-1000

3250-M=2M+500

3M=2750

M=916 2/3

5 0
2 years ago
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A rock is thrown upward from a bridge that is 22 feet above a road. The rock reaches its maximum height above the road 0.69 seco
Flura [38]

Answer:

  • <u>f(t) = -7.561(t + 1.15)(t - 2.53)</u>

Explanation:

The<em> hint </em>is that the function f can be written in the form:

  • f(t) = c (t - t₁) (t - t₂)

It is a quadratic function, i.e. a parabola.

The maximum point, maximum height, of a parabola is its vertex.

And the x-coordinate of the vertex is at the midpoint between the two x-intercepts.

The time when the rock reaches the road is one x-intercept: t = 2.53 seconds: (2.53, 0).

The other x-intercept is sucht that (x + 2.53) / 2 = 0.69

  • (x + 2.53) / 2 = 0.69
  • x + 2.53 = 1.38
  • x = 1.38 - 2.53
  • x = -1.15

Thus, the equation is:

  • f(t) = c(t + 1.15) (t - 2.53).

You can find c by doing t = 0, because at t = 0 the height, f(t), is 22 feet:

  • f(0) = 22 = c (0 +1.15)(0 - 2.53)
  • 22 = c(1.15)(-2.53)
  • 22 = c (-2.9095)
  • c = - 22/(2.9095)
  • c = - 7.561

Then, the function can be written as:

  • f(t) = -7.561(t + 1.15) (t - 2.53) ← answer
6 0
3 years ago
BRAINLIEST <br>a. 7 sqrt of 2<br>b. 14<br>c. 7<br>d. 7 sqrt of 3​​
Alex73 [517]

Answer:

(a). 7√2

Step-by-step explanation:

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2 years ago
-7(x+4)<br> Please help ASAP
jekas [21]

Answer:

-7x+28

hope this helps

Step-by-step explanation:

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3 years ago
Beth uses the expression 4(2l - 2) - 1 to determine how much profit she will make after selling any given number of lamps (l). I
Ksju [112]
The answer is D.191 

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