Answer:
Adult plate = 21 , child plate = 11
Step-by-step explanation:
number of adult plate = a , no of child plate = c
$487 = $19a + $8c (equation 1)
32 = a + c (equation 2)
Multiply equation 2 by 8 gets you:
256 = 8a + 8c (equation 3)
Solve equation 1 and equation 3 simultaneously:
487 = 19a + 8c (equation 1) minus
256 = 8a + 8c (equation 3) :
231 = 11a
a = 231/11
a= 21
Substitute a = 21 into equation 2 :
32 = 21 + c
c = 32 - 21
c = 11
So 21 adult plates and 11 child plates were sold.
Answer: B and D
im not 100% sure tho more like 75% but im hoping its correct
Answer:
2cm:2cm:2cm
Step-by-step explanation:
40/10=4/2=2cm
2cm=2cm
8cm/2/2cm=2cm
Answer: 91
Step-by-step explanation: 6.5 x 14 = 91
