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skelet666 [1.2K]
3 years ago
14

Andrea has four times the number of marbles that Jennifer has. If x equals the number of marbles that Jennifer has, which expres

sion represents the number of marbles that Andrea has?
Mathematics
1 answer:
sasho [114]3 years ago
7 0

Answer:

Number of marbles Andrea has can be expressed as =4x marbles

Step-by-step explanation:

Given:

Number of marbles Jennifer has = x marbles

Andrea has 4 times the number of marbles that Jennifer has.

∴ Number of marbles Andrea has can be expressed as = 4\times x=4x marbles

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PLSSS I NEED THE ANSWER
BabaBlast [244]

Answer:

1. 6.4 meters of streamers left to make pompoms

2. He will be able to make 8 pompoms

Step-by-step explanation:

1.

4 x 1.6 = 5.6 meters were used to make decorations.

Then we do 12 - 5.6 = 6.4

2.

per one pompom it takes 0.8 meters of streamers.

6.4 is the left over so we do

6.4 divided by 0.8 = 8 pompoms you can make

6 0
2 years ago
Calculate the rise and run between any two coordinates to find the slope of each line ...
NISA [10]

For the first one its a slope of -2/3

The second one is 4/5

and the third one is -1/7

3 0
2 years ago
What is 6 tens x 10=
Effectus [21]
6 tens is the same as 60 so....
60 x 10 = 600
5 0
3 years ago
Which triangle drfined by the given points on the coordinate plane is similar to the triangle illustrated? ​
Harrizon [31]

Answer:D.) (-1, 1), (-1, 5), (-7, 1)

Step-by-step explanation:The length of the horizontal segment of the triangle graphed is 3.  The length of the vertical segment of the triangle graphed is 2.  Using the Pythagorean theorem, this makes the length of the missing side

2²+3²=c²

4+9 = c²

13=c²

√13 = c

This makes our side lengths 2, 3, and √13.

For choice A our vertices are (-1, 1), (-1, 4), (-6, 1).

This makes the length of the horizontal segment 5 and the length of the vertical segment 3.  This makes the missing side length

5²+3²=c²

25+9=c²

34=c²

√34 = c

This is not proportional to the triangle drawn, so it is not similar.

The vertices of the triangle in option B are (-1, 1), (-1, 5), and (-6, 1).  This makes the horizontal segment 5 units long and the vertical segment 4 units long.  This makes the missing side length

4²+5²=c²

16+25=c²

41=c²

√41=c

These are not proportional to the triangle drawn, so the triangles are not similar.

The vertices of the triangle in choice C are (-1, 1), (-1, 4) and (-7, 1).  This makes the length of the horizontal segment 6 and the length of the vertical segment 3.  This makes the missing side length

3²+6²=c²

9+36=c²

45=c²

√45=c

3√5=c

These sides are not proportional to the sides of the triangle drawn, so the triangles are not similar.

The vertices of the triangle in choice D are (-1, 1), (-1, 5) and (-7, 1).  This makes the length of the horizontal segment 6 and the length of the vertical segment 4.  This makes the missing side length

6²+4²=c²

36+16=c²

52=c²

√52=c²

2√13=c

These sides are all twice as long as the sides of the triangle drawn; this means the triangles are similar.

4 0
3 years ago
Sarah's age is five less than twice her sister's age. Sarah is fifteen years old.
saul85 [17]
Let her sisters age be x.
=>sister .....x

Sarah.
twice x=2x. then less than 5
=> (2x-5 )
if Sarah = 15 years
by substation, 2x-5=15
3 0
3 years ago
Read 2 more answers
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