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Kay [80]
3 years ago
15

7. The speed of one car is 20% less than the speed of a second car. What per cent more time does the first car need to travel th

e same route as the second car?
Mathematics
1 answer:
9966 [12]3 years ago
7 0

Answer:

25% or more

Step-by-step explanation:

t1 = d1/v1 , t2 = d2/v2.

d1 = d2 , and v1 = 0.8 v2

t1 / t2 = d1/d2 x v2/v1 = v2/v1 ( as d1 = d2 )

t1/t2 = v2 / v1 = v2/0.8 v2 = 1/0.8 = 1.25

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Help me with this lol value of( 2^3)^2
ss7ja [257]

Answer:

64

Step-by-step explanation:

first, we'll start with the value inside the parenthesis, which is 2³

2³ means to multiply 2 by itself 3 times

so it would be

2×2×2=8

which then means that the expression is now (8)²

now we need to do (8)², which is to multiply 8 by itself twice

8*8=64

hope this helps!

6 0
3 years ago
How many numbers multiple of 3 are in the range [2,2000]?
amm1812

Answer: so there are 666 multiples of 3 between 2 and 2000.

Step-by-step explanation:

the smallest number = 3 which is 3*1. The largest number is = 1998 = 3*666

multiples of 3 between {2,2000} = 666-1+1 = 666

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3 years ago
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If you know this could you help me?
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Equation : y = -0.5x − 8

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3 years ago
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