Answer:
the number of child plates and adults plates were served is 125 and 155 respectively
Step-by-step explanation:
Let us assume the child plate be x
And, the adult plates be y
Now according to the question
x + y = 280 .................(1)
2.60x + 9.50y = 1797.50 .............(2)
Now multiply by 2.60x in equation (1)
2.60x + 2.60y = 728
2.60x + 9.50y = 1797.50
-6.90y = -1069.50
y = 155
So, x = 280 - 155
= 125
hence, the number of child plates and adults plates were served is 125 and 155 respectively
Answer: -2/3
3-(-1) over
-2-4
This equals 4/-6 which reduces to -2/3
0.15 with dash on top and the dash means its a repeating decimal and a repeating decimal is a decimal that repeats itself in this case it would be 0.1515151515 and so on
512 = 16
x = 1
16x = 512
x = 512 ÷ 16
x = 32
Answer: 32 miles per gallon (B)
50 = 117.50
1 = x
50x = 117.50
x = 117.50 ÷ 50
x = 2.35
Answer: $2.35 per pound (C)