3 years ago

A train travels 190 km in 3.0 hours and then 120 km in 2.0 hours. What is its average speed?

Mathematics

1 answer:

melisa1 [442]3 years ago

3 0

The average speed it 310

You might be interested in

a woman is expecting triplets. what is the probability that there are 2 girls and 1 boy? what is the probability that all 3 babi

navik [9.2K]

Let the boy be B and the girl be G
there are six possible outcomes
BGG, GBB, GBG, BGB, BBB, and GGG
therefore the probability of getting one boy and two girls is $\frac{1}{6}$
also the probability of getting 3 girls is $\frac{1}{6}$

8 0

3 years ago

Read 2 more answers

Amy ate 2 1/2 cookies after lunch ,and 1 2/5 cookies after dinner.How many cookies did she eat altogether

Mrac [35]

2 1/2 + 1 2/5 = 3 9/10...Please give brainliest....

3 0

4 years ago

Read 2 more answers

A combination lock has four wheels in a row. Each wheel has the digits from 0 to 9 on it. How many different combinations are th

sattari [20]

Answer:

Step-by-step explanation:

a.10^4=10000

b.10×9×8×7=5040

7 0

3 years ago

HELP!1!1!

tester [92]

Answer:

6,0 4,8

Step-by-step explanation:

because i know

4 0

3 years ago

Answer for 23 plz plz plz

den301095 [7]

Answer:

A₍ₙ₎ = - 74 + (n-1) x 6

Step-by-step explanation:

A₍ₙ₎ = A₍₁₎ + (n-1) x d

A₍₁₈₎ = 28 = A₍₁₎ + 17 x d ..... (1)

A₍₄₀₎ = 160 = A₍₁₎ + 39 x d .....(2)

(2)-(1) 132 = 22d

d = 6

A₍₁₎ = 28 - 17 x 6 = -74

formula: A₍ₙ₎ = - 74 + (n-1) x 6

3 0

3 years ago