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DIA [1.3K]
3 years ago
10

Cheryl climbed a set of stairs and stopped at the middle step. She then walked down 2 steps, up 4 steps, down 3 steps, and up 5

steps, and she was at the top of the stairs. How many steps are in the set of stairs?
Mathematics
1 answer:
Sedaia [141]3 years ago
5 0

Answer:

There were 8 total steps

Step-by-step explanation:

Okay, so we start in the middle.

-2 + 4 = 2. We're back in the middle.

2 - 3 = -1. One away from the middle.

-1 + 5 = 4. Now you're at the top.

4 x 2 = 8

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Please help!!!will get brainliest!
il63 [147K]
Turn the information into coordinate points.

Point = (time, population)

Point 1 = (1985, 45000)
Point 2 = (2004 , 26000)

Find the slope between these points using the formula

( Slope)—> m = (y2 - y1) / (x2 - x1)
26000-45000/2004-1985=-19000/19= -1000
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6 0
3 years ago
Find the unit rate of 20 meters/4 minutes
salantis [7]

Answer:

5 meters per minute or 5/1 or 5:1

8 0
3 years ago
What number added to four, is twelve?<br><br> 4<br> 8<br> 12<br> 16
Maksim231197 [3]
It would be 8 because 8+4=12
5 0
3 years ago
These dot plots show the ages (in years) for a sample of two types of fish.
drek231 [11]

*Select two choices: one for the centers and one for the spreads.

A. Centers: The sharks have a lower median age than the koi

B. Spreads: The ages of the koi are more spread out.

C. Centers: The sharks have a greater median age than the koi.

D. Spreads: The ages of the sharks are more spread out

(See attachement for diagram)

Answer:

A. and B.

Step-by-step explanation:

Measure of center that can be used in stating the differences between Koi and Shark is the median.

Examining the dot plot, the median age for Sharks is 20.

The median age for Koi is the 14th data point, which is 40.

Thus, for the center, we can conclude that Sharks has a lower median age than Koi.

For the spread, the larger the range, the more spread out the data are.

Thus:

Range for Sharks = 30 - 10 = 20

Range for Koi = 70 - 25 = 45

Therefore, we can conclude that the ages of Koi are more spread out.

5 0
3 years ago
A rectangle has a length of 9.00 inches and a width of 4.25 inches. What is the area in square inches? Round to the correct sign
mash [69]
3 sig figs
multiply
9.00*4.25=38.25
round to 3
38.3 square inches
5 0
3 years ago
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