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eimsori [14]
3 years ago
5

The scatter plot shown gives the relationship between concentration and absorbance of a particular chemical, along with the line

of best fit. What absorbance level is predicted when the concentration is 0.2?
A) 0.21
B) 0.24
C) 0.27
D) 0.30

Mathematics
1 answer:
Vesnalui [34]3 years ago
3 0

Answer:

B) 0.24

Step-by-step explanation:

As we plot the point on the best fit line for the concentration of 0.2 the absorbance level predicted should be 0.24.

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Which equation represents a non-proportional situation? y = 6x y = –2x + 14 y = –3x y = 14x
ki77a [65]

The equation of proportional situation is y = ax.

Therefore your answer is y = -2x + 14

3 0
3 years ago
Read 2 more answers
0.25(8)+0.15x=0.35(20+x)
IRINA_888 [86]
X=-25 is the answer.
3 0
3 years ago
Scott earned 20 points more on his most recent math test than he earned on the previous test. If he earned at least 80 points on
NARA [144]

9514 1404 393

Answer:

  s ≥ 60

Step-by-step explanation:

If Scott earned 20 points more on this test, then he earned 20 points less on the last test. 20 points less than "at least 80" is "at least 60."

  s ≥ 60

7 0
3 years ago
Challenge A movie theater sends out a coupon for 15% off the price of a ticket. Write an equation
marshall27 [118]

Answer:

The equation is y= 0,65 x

If x is the price of the ticket without the coupon, and the theater offers a discount if you have a coupon, then having a coupon means that the price a person ultimately  pays (y) is  the original price (x) minus a 35% of this price: y= x -0.35 x . By association: y= (1-0.35) x and then y= 0.65 x.

The line should be in the first quadrant because the first quadrant allows you to represent a situation in which the dependent variable (y) and the independent variable (x) are both positive. This is the case in this exercise, because both prices, the one without discount (x) and the one with discount (y) are necessary positive (you can not pay a negative price!).

Step-by-step explanation:

The price without discount (or without the coupon) is x.

The price with discount (or with coupon) is y.

y and x are both related: y is a percentage of x, specifically, y is 35% smaller than x. This means that y =0.65 x.

4 0
3 years ago
A truck travels 2,365 miles at an average speed of 55 miles per hour.At that speed, how long will it take the truck to complete
disa [49]

Answer:

Step-by-step explanation:

Givens

d = 2365 miles

r = 55 miles / hour

t = ?

Formula

d = r * t

Solution

d = r * t

2365 = 55 * t               Divide by 55

2365/55 = t

t = 43 hours.

5 0
3 years ago
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