The ratio of red cars to blue cars in a parking lot was 5: 3.if there were 40 red cars, how many blue cars were there? ?

24

Step-by-step explanation:

The 5 part of the ratio represents 40 cars, thus

40 ÷ 5 = 8 cars ← value of 1 part of the ratio

3 parts = 3 × 8 = 24 ← number of blue cars

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles