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skad [1K]
3 years ago
7

Can someone please help me! I'll give brainliest to who ever answers first with a positive answer

Mathematics
1 answer:
Effectus [21]3 years ago
7 0

1. 3(p+q)=p

3p+3q=p; 3p-p=3q; 2p=q so p=q/2


2. 4a=2b-7

2b=4a+7 so b=(4a+7)/2

when a=3 , b=(12+7)/2=19/2=9.5


3. d=rt; r=d/t

4.( 2x15)+(2xwidth)=90

2x width=90-30

width =60/2=30


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Dale played 3 games of tennis. Each game took 1 hour and 20 mintues. If Dale started playing tennis at 12:00, what time did he f
liraira [26]
Your Answer Is...

4:00.

Why?

He started at 12:00. Each game took 1 hour and 20 minutes and he played 3 games, so you would add 1:20 to 12:00 3 times, getting 4:00.

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3 years ago
5(2x + 6) = 8x + 48 <br><br> simplify.
lord [1]

10x+30=8x+48

2x+30=48

2x=18

x=9

3 0
4 years ago
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in a marathon race (42.195 km), the winner’s time is 2 hours, 13 minutes, and 9 seconds, while the second-place time is 2 hours,
algol [13]

in a marathon race (42.195 km), the winner’s time is 2 hours, 13 minutes, and 9 seconds, while the second-place time is 2 hours, 26 minutes, and 6 seconds . The distance is 2.664 km.

D = distance of marathon = 42.195 km = 42195 m

tw = time taken by winner = 2 h 17 min = 2 (60) + 17 = 137 min = 137 (60) = 8220 sec

Vw = speed of winner

speed of winner is given as

Vw = D /tw = 42195/8220

ts = time taken by second place = 2 h 26 min 14 sec = 2 (60)(60) + (26)(60) + 14 = 8774 s

Vs = speed of second place

speed of second place is given as

Vs = D /ts = 42195/8774

distance of the second place holder from the finish line is given as

D' = Vs (ts - tw)

D' = (42195/8774 )(8774 - 8220)

D' = 2664.24 m

D'= 2.664 km

To learn more about distance  visit:brainly.com/question/15172156

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7 0
1 year ago
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krek1111 [17]

Answer:

For question #9: y=\frac{1}{3}x+3

For question #10: y=-3x+16

Step-by-step explanation:

Brainliest please!

7 0
3 years ago
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Question 1)

Gwen has already burned 100 calories when Tristan and Keith started, and he continues to burn 10 calories per minute. The equation for Gwen is

y = 100 + 10x

Question 2)

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y = 12.5x

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