Answer:
37.5 miles per hour
Step-by-step explanation:
The traffic along a stretch road moves at an average speed that carried inversely as the number of cars
Average speed= k/number of cars.
When there are 1,500 cars the average speed is 45
The first step is to calculate the constant k
45= k/1500
k = 1,500 × 45
k= 67,500
Therefore the average speed when there are 1,800 cars can be calculated as follows
Average speed= 67,500/1,800
= 37.5 miles per hour
Hence the average speed is 37.5 moles per hour
Perimeter of the new triangle is 1505 ft
Step-by-step explanation:
- Step 1: Given the perimeter of the right triangle = 215 ft. Find new perimeter.
Perimeter of the triangle = sum of the sides = a + b + c = 215
Each side is multiplied by 7, so new sides are 7a, 7b, 7c
⇒ New perimeter = 7a + 7b + 7c = 7(a + b + c) = 7 × 215 = 1505 ft
Answer:
80 lamps
Step-by-step explanation:
number of lamp bases*no. of lampshades*no. of lightbulbs= total number of lamp choices
5*(3*3)*2
=5*9*2
=40*2
=80
hope it helps :)
Altogether Katrina and her seven friends equal eight. Eight divided by four is two cookies. The answer is 2.
Take 1 in 1/8
take 3 in <span>3/8
</span>take<span> 3 </span>in<span> 3/8</span>
Then, add <span>3 + 3 = 6. Then, 6 + 1 = 7.
Then, put that 7 back over the 8.
So, it equals 7/8 of spices in a sauce.
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