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Korvikt [17]
3 years ago
9

john has 8 pencils. tim has 2 less pencils than john. which expression shows how many pencils tim has?

Mathematics
2 answers:
Misha Larkins [42]3 years ago
7 0

Answer:

B

Step-by-step explanation:

cuz i said

enot [183]3 years ago
4 0

Answer:

b

Step-by-step explanation:

8-2 would be the amount of pencils tim has

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Sean missed 8 questions when he took his quiz for the first time. when he took it the second time he only missed 3 questions. By
Ivanshal [37]

Answer:

37.5

Step-by-step explanation:

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3 years ago
Points (−3, 5) and (3, 5) on the coordinate grid below show the positions of two players on a tennis court:
Anna35 [415]

Answer:

4.  Player 2's position is Player 1's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.

Step-by-step explanation:

Player 1's position is (-3, 5).

It means that it is 3 units left from the origin and 5 units above the origin.

Player 2's position is (3, 5).

It means that it is 3 units right from the origin and 5 units above the origin.

Hence, the two points are on the same horizontal line bisected by the y-axis.

So, Player 2's position is Player 1's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.

3 0
3 years ago
A spherical exercise ball has a maximum diameter of 30 inches when filled with air. The ball was completely empty at the start,
Alex73 [517]

Answer:

A) A(t)  =  4500*π  -  1600*t

B) A(4)  =  7730 in³

C) t  =  8,8 sec

Step-by-step explanation:

The volume of the sphere is:

d max  =  30   r max  =  15 in

V(s) =  (4/3)*π*r³      V(s)  =   (4/3)*π* (15)³

V(s) = 4500*π

A)  Amount of air needed to fill the ball A(t)

A(t)  = Total max. volume of the sphere - rate of flux of air * time

A(t)  =  4500*π  -  1600*t    in³

B) After 4 minutes

A(4)  =  4500*π  - 6400

A(4)  =  14130 - 6400

A(4)  =  7730 in³

C)  A(t)  =  4500*π  -  1600*t  

when  A(t) = 0   the ball got its maximum volume then:

4500*π -  1600*t  =  0

t  =   14130/1600

t  =  8,8 sec

8 0
2 years ago
Please help this is so confusing u can have 25 points if u help me
Elina [12.6K]

Step-by-step explanation:

Share 20pounds in the ratio 2:3

Total ratio=2+3=5

2/5×20=8

20-8=12

Sharing 20pounds in that ratio gives 8pounds:12pounds

Share 15cm in the ratio 1:3

Total ratio=1+4=4

¼×15=3.75

15-3.75=11.25

Sharing 15cm in that ratio gives 3.75:11.25

7 0
2 years ago
To adopt a pet from a shelter, homes must have a certain amount of area in which
Irina-Kira [14]

Answer:

L=A÷w

Step-by-step explanation:

take the area and ÷ it by the width and yoj have your length

4 0
3 years ago
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