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slavikrds [6]
3 years ago
14

I do not understand numbers 3 and 4

Mathematics
1 answer:
Margaret [11]3 years ago
8 0
3. jenny has 21 years old

and matthew  is 42


4.juan has 48 years oldand his  sister has 40
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What division sentence means the same as the following subtraction sentences?​
WINSTONCH [101]

I do not see any illustrations, but repeated subtraction is the exact same as division.

I hope this answer was useful, and as always, I am joyous to assist anyone at any time.

3 0
3 years ago
When asked to graph the line for y = 2/5x + 3, Mallory drew the line shown.
Helen [10]

Answer:

A

Step-by-step explanation:

Using desmos we can see that the slope is positive and increasing while Mallory made a negative slope.

5 0
3 years ago
Based on your data, describe the relationship between age and the number of U.S. states a
nekit [7.7K]

Answer:

where is teh data?

Step-by-step explanation:

6 0
2 years ago
Donna wants to decorate her bulletin board she has 38 meters of green ribbon to go around the bulletin board and she has to use
andreev551 [17]

If you are asking for the perimeter of the bulletin board the answer below will be correct!

Answer:

Square option: 9.5 Meters

Rectangle option: see explanation below

Step-by-step explanation:

To find the perimeter you must add the lengths of all the sides. Assuming the bulletin board is a SQUARE all four sides are going to be equal. Therefore you can divide 38 by 4 to get the length of one side (aka 9.5 meters).

Assuming the bulletin board is a RECTANGLE changes things up. You can pretty much pick any combination of numbers that will add up to 19 (because if it is a rectangle there are two pairs of equal side lengths). You could do 1 + 18, 5+14, 8+11. The options are really endless

4 0
2 years ago
A scientist enlarged a circular portion of a microscope slide to make it easier to count the number of bacteria present in the s
Tema [17]

Answer:

Option B. 212.1\ cm^{2}

Step-by-step explanation:

step 1

Find the central angle of the shaded sector

Remember that the diameter divide the circle into two equal parts ( 180 degrees each part)

so

Let

x -----> the measure of the central angle of the shaded sector

∠x+72°=180°

∠x=180°-72°=108°

step 2

Find the area of the circle

The area of the circle is

A=\pi r^{2}

we have

r=15\ cm

assume

\pi=3.1416

substitute

A=(3.1416)(15)^{2}

A=706.86\ cm^{2}

step 3

Find the area of the shaded sector

Remember that the area of the complete circle subtends a central angle of 360 degrees

so

by proportion find the area of a sector by a central angle of 108 degrees

\frac{706.86}{360}=\frac{x}{108}\\ \\x=706.86*108/360\\ \\x=212.1\ cm^{2}

8 0
3 years ago
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