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forsale [732]
3 years ago
11

Will mark brainliest

Mathematics
1 answer:
Lerok [7]3 years ago
3 0

Answer:

Step-by-step explanation:

We know she gets 4 more quarters so: q+4

She gives away 3 dime so: d-3

And the nickels stay the same: n

In total the expression would be:  <u>q+4+d-3+n</u>

<em>Hope this helps :D</em>

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Car A, traveling at a constant 10 m/s, crosses the start line 3 seconds before Car B, who is traveling at a constant 15 m/s. At
Margaret [11]
The distance between Car A and car B,When Car A crosses the start line is:
distance =speed car B* time
distance=(15 m/s)(3 s)=45 m
 
Distance traveled by car A =x,  (when the car B is at the same distance from the start line)
time of car A=t

x=10 m/st  ⇒    x=10t    (1)

Distance traveled by car B=x
time of car B=t-3

x=15(t-3)  (2)

With the equations (1) and (2) we make a system of equations:

x=10t
x=15(t-3)

We solve this system of equations:

10t=15(t-3)
10t=15t-45
-5t=-45
t=-45 / -5
t=9

t-3=9-3=6

x=10 t=10 (9)=90

Answer: The time would be 9 seconds for Car A and 6 seconds for car B and the distance would be 90 meters.
8 0
3 years ago
Vw=6 , uv=14 what is uw
vekshin1

Answer:

21

Step-by-step explanation:

if v=2

then uw=21

because 6/2=3, and

14/2=7

3x7=21

3 0
3 years ago
0.44 in scientific notation
babunello [35]
44x10^-2
or in other words
44 times 10 to the -2nd power
3 0
3 years ago
Find the radius, please help asap due tuesday
Varvara68 [4.7K]

Answer:

I can't see anything man but you could do it alright

3 0
2 years ago
Read 2 more answers
Double somme help please
Lady_Fox [76]

Answer:

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Step-by-step explanation:

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