This is really hard to explain but i will try. The easiest one i see is 24 x 12, a good way to do it is by adding 12 to its self 24 times. the answer to that is 288.

7 0

2 years ago

Write a numerical expression

vekshin1

259-85+62÷2 is the answer

3 0

2 years ago

Rewrite -5(x+3) without parentheses

nevsk [136]

Answer:

-5x-15

Step-by-step explanation:

its simple you have to multiply it to both

6 0

2 years ago

Read 2 more answers

A train left for London, and after 9 hours later, a car traveling 80 miles per hour tried catching up to the train. After 3 hour

morpeh [17]

Answer:

20 miles per hour

Step-by-step explanation:

Given that the train left for London, and after 9 hours later, a car traveling 80 miles per hour tried catching up to the train. After 3 hours, the car caught up

Which means that the car travelled the same distance in 3 hours as the train travelled in 9 + 3 = 12 hours

Let the distance be d

Given the speed of car is 80 miles per hour

We know that $speed=\frac{distance }{time}$

$80=\frac{d}{3}$

d = 240 miles

Now for the train Average speed = total distance / total time taken

Average speed of the train = $\frac{240}{12}$ = 20 miles per hour

7 0

2 years ago