Let W = number of white cars, and Y = number of yellow cars.
There were 9 times as many white cars as yellow cars. This means that the number of white cars was 9 times more than the number of yellow cars. This can be translated by the expression:
9Y = W
The person counted 40 cars in total:
W + Y = 40
So we get the system:

In the first equation, we multiply by 9:
9W + 9Y = 360
In the second equation:
9Y= W
W-9Y = 0
Then we add the first with the second equation:
9W + 9Y + W - 9Y = 360
10 W = 360
W = 36
So He counted 36 white cars.
Hope this Helps! :)
Answer:
0.07kg
Step-by-step explanation:
1kg = 1000g
so grams/1000 =kg
70/1000 = 0.07kg
Answer:
IM HERE
Step-by-step explanation: meh
Answer: $40.00
Step-by-step explanation:
To find the original price, you would need to utilize the equation Original Price = Sales Price ÷ (1 - Discount). In this equation, Discount refers to the percentage of discount.
Original Price = $34.00 ÷ (1 - 0.15)
Original Price = $34.00 ÷ (0.85)
Original Price = $40.00
Because 3 and 9 are multiples so they can both be divided into 378