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Mumz [18]
3 years ago
11

Jack and Walter work in a store's gift-wrapping department. Jack can wrap 28 boxes in 2 hours, while Walter takes 3 hours to wra

p 36 boxes of the same size. One day they work together for t hours to gift wrap 65 boxes. Which equation models this situation?
A. 65=28+36/t
B. 65=26/t
C. 26t=65
D. 5t=65
Mathematics
1 answer:
kodGreya [7K]3 years ago
3 0

Answer:

C.

Step-by-step explanation:

Jack's rate = 28/2 = 14 boxes/hour

Walter's rate = 36/3 = 12 boxes/hour

Combined rate = 14 + 12

= 26 boxes/hour

26 = 65/t

26t = 65

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if you mean.

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7 0
3 years ago
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leonid [27]

Answer:

A) f(t) = 29,800(0.89)^t

Step-by-step explanation:The truck value decreases by 11% each year.

The present value of the truck was $29,800.

29,800 x 0.11 = 3,728 dollars lost from value.

29,800 - 3,728 = 26,522, the value of the truck after one year.

26,522 x 0.11 = 2,917.42 cash lost from value.

26,522 - 3,728 = 23,604.58, the value of the truck after two years.

Therefore, the answer is A) f(t) = 29,800(0.89)^t.

7 0
2 years ago
Ahn had walked 8 blocks. He was 25% of the way to school. How many total blocks was his walk to school?
Sedaia [141]
He had walked 8 blocks, and that was 25% (or .25) of the distance to the school. Let’s let “D” represent the total distance...
D x .25 = 8 blocks
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2 years ago
The number of bacteria in a certain population increases according to an exponential growth model, with a growth rate of 3.5% pe
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Generic exponential growth model: y = Ao[1+r]^t

In this case: r = 3.5% = 0.035

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Then: 2Ao =Ao (1 + 0.035)^t

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3 0
3 years ago
Write and equation of the translated or rotated graph in general form
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That's a parabola, almost in vertex form:

y = \frac 1 4 (x+3)^2

The translation is

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x= x'+7, y=y'-2

Substituting translates the graph. None of the choices have fractions so we substitute into the original form:

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We can drop the primes now and simplify,

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This method generalizes nicely to rotations, reflections and other transformations.

6 0
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