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Papessa [141]
3 years ago
7

1. Evan drove 308 km in the same time that Meghan drove 329 km. If Meghan drove

Mathematics
1 answer:
emmainna [20.7K]3 years ago
8 0

Answer:

Her average speed is 94 km/h

Time taken is 3.5 hours

Step-by-step explanation:

Let Evan’s average speed be x km/h.

now since Meghan drove faster, according to the question, we can say her average speed would be x + 6 km/h

Mathematically, time = distance/speed

so; since time is the same; we have

308/x = 329/(x + 6)

cross multiply

329(x) = 308(x + 6)

329x = 308x + 1848

329x-308x = 1848

21x = 1848

x = 1848/21

x = 88 km/h

Meghan average speed = x + 6 = 88 + 6 = 94 km/h

Time taken would be 329/94 = 3.5 hours

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K - 2L = L - M, THEN WHAY IS THE VALUE OF K - L + M?
Pachacha [2.7K]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ K - 2L = L - M

Subtract L from both sides:

K - 2L - L = -M

Add M to both sides:

K - 2L - L + M = 0

Add 2L to both sides:

K - L + M = 2L <== this is the answer

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4 0
3 years ago
Read 2 more answers
Need help sorry to bother please help I don't get it.
poizon [28]

so it says 6 times as old as June

so that would be 6x


then it said the sum so that's addition is no less than so that's subtraction


so it would be


X because we June's father age

so x times 6 > 77



3 0
3 years ago
PLEASE HELP ANSWER WHAT YOU CAN
igomit [66]

Answer:

1) 20.2 feet

2) 24 miles

I am unsure if this is correct, but I used the Pythagorean theorem to solve your questions.

Step-by-step explanation:

1)

a^2 + b^2 = c^2

13^2 + b^2 = 24^2

b^2 = 24^2 - 13^2

b^2 = 576 - 169 = 407

b = √407 = 20.2

2)

6^2 + 8^2 = c^2

36 + 64 = c^2

100 = c^2

c = 10

10 + 6 + 8 = 24

5 0
3 years ago
A car travelling at 90km/h is 500m behind another car travelling at 70km/h in the same direction. How long will it take the firs
MAXImum [283]

Relative speed: 90 - 70 = 20 km/h

s = d ÷  t

t = d ÷  s

t = 500 m ÷ 20 km/h x 1000 m/h x 1 ÷ 60 hr/mins

t = 1.5 minutes.

6 0
3 years ago
What are all of the real roots of the following polynomial?
Dennis_Churaev [7]

Answer:

h

Step-by-step explanation:

7 0
3 years ago
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