Answer:
the cost for the large popcorn and the small drink is $4 and $3 respectively
Step-by-step explanation:
The computation of the cost for the large popcorn and the small drink is shown below:
Let us assume the cost of the large popcorn be x
ANd, the small drink cost be y
Now as per the question
2x + 4y = $20
2x + 2y = $14
Now subtract equation 2 from equation 1
2y = $6
y = $3
Now for x it is
2x + 12 = $20
2x = $8
x = $4
Hence, the cost for the large popcorn and the small drink is $4 and $3 respectively
Answer:
Step-by-step explanation:
60 to 15 = x to 70
60/15 = x/70.....cross multiply
15x = 4200
x = 4200/15
x = 280 <=== answer A
The area of the triangles should be 7.5sq. The only question I can answer
Answer:
9 : 10
Step-by-step explanation:
First the ratio will be 63 : 70
Now, we have to simplify! The GCF (greatest common factor) is 7, so let's divide both numbers by 7 to maintain equality.
63/7 = 9
70/7 = 10
9 : 10 is the final answer!
This reduces nicely if you first notice that 16/81 = (2/3)^4.
Then use the properties of powers (of positive real numbers):
(16/81)^(3/4) = ((2/3)^4)^(3/4) = (2/3)^3 = 8/27