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AnnyKZ [126]
2 years ago
9

Question 15 of 20

Mathematics
1 answer:
grandymaker [24]2 years ago
4 0

Answer: 3 inches

Step-by-step explanation:

You might be interested in
11.447 is greater than 11.473
Stells [14]
No 11.473 is greater then 11.447
8 0
3 years ago
The temperature was 54 at 7:00 a.m. At 3:00 p.m. on the same day, the temperature was 82. What is the rate of change in temperat
vampirchik [111]

Answer:

The rate of change was 3.5 degrees / h.

Step-by-step explanation:

In order to calculate the rate of change we need to divide the variation of temperature by the variation of time. Since the time is given to us in a 12 h format (am/pm), we first need to convert it to 24 h. To do that we sum the time that is "pm" by 12, we have:

time2 = 3 + 12 = 15

Therefore the rate of change in temperature is:

rate = variation of temp / variation of time

rate = (temp final - temp init) / (time final - time init)

rate = (82 - 54) / (15 - 7) = 28 / 8 = 3.5 degrees / h

The rate of change was 3.5 degrees / h.

4 0
4 years ago
If 3 inches represents 90 miles on a scale drawing, how long would a line segment be that represents 240 miles?
DerKrebs [107]

Answer:

8 inches

Step-by-step explanation:

90 miles -------------> represented by 3 inches

1 mile -------------> represented by 3/90 inches

240 miles ----------> represented by 3/90 x 240 = 8 inches

6 0
3 years ago
Suppose y varies directly with x. Write an equation if y = 4 when x = 0.4.
Roman55 [17]
Yes correct
0.04
step by step explanation:
i’m here for the points sorry
7 0
3 years ago
When a 49 pound weight is attached to a spring, the spring
lorasvet [3.4K]

im not for sure but I think the answer is 9! my reasoning is below,,

Step-by-step explanation:

\frac{49}{7}  =  \frac{63}{x}

do the crossing method and it would result in this

(49×x) = (63×7)

after simplifying both sides

49x = 441

divide both sides by 49 and the result will be

x = 9 !!

6 0
3 years ago
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