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Novay_Z [31]
3 years ago
5

On day 3 of a canned food drive, the students had collected 80 cans and were 40% of the way to their goal. What was their goal f

or the total number of cans they hoped to collect?
Mathematics
1 answer:
Over [174]3 years ago
5 0

Answer:

200 cans

Step-by-step explanation:

use rate method

80         40

x           100

40x=8000

x=8000/40

x=200

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What is the value of x?
Fittoniya [83]
Let the 2 equal lengths be represented by 2p.  Then you can write the equation of ratios

  p       2p
---- = -------
16      x+4

which simplifies to 

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----- = ------
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then x+4 = 32, and x = 28 (answer)
8 0
2 years ago
The percent of concentration of a certain drug in the bloodstream x hours after the drug is administered is given by K(x) 5x/x^2
Olegator [25]

Given :

The percent of concentration of a certain drug in the bloodstream x hours after the drug is administered is given by K(x) = \dfrac{5x}{x^2+9}.

To Find :

Find the time at which the concentration is a maximum. b. Find the maximum concentration.

Solution :

For maximum value of x, K'(x) = 0.

K'(x) = \dfrac{5(x^2+9)- 5x(2x)}{(x^2+9)^2}=0\\\\5x^2+45-10x^2=0\\\\5x^2 = 45\\\\x = \pm 3

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Putting value of x = 3, we get, K(3) = 15/( 9 + 9) = 5/6

Therefore, maximum value drug in bloodstream is 5/6 at time x = 3 units.

Hence, this is the required solution.

5 0
2 years ago
What will be the explanatory and response variable for this article?
vekshin1

Step-by-step explanation:

The explanatory is the independent variable, or the variable that goes on the x-axis of a graph.  Here, that could be time or political affiliation.

The response variable is the dependent variable, or the variable that goes on the y-axis of a graph.  Here, that would be percent that have a positive view of capitalism/socialism.

7 0
3 years ago
Pls helppp
kicyunya [14]

Answer:

1,080 cm2

Step-by-step explanation:

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15x12=180

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8 0
3 years ago
Solve 3/2 + 1/2x =2x
kvv77 [185]

Answer:

x=1

Step-by-step explanation:

7 0
3 years ago
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