Answer:
Step-by-step explanation:
c+a=20
a=20-c
5.25c+7.75a=140, using a from above makes this
5.25c+7.75(20-c)=140
5.25c+155-7.75c=140
-2.5c+155=140
-2.5c=-15
c=6
a=20-c=20-6=14
So she bought 14 adult and 6 children tickets.
Answer:
answer = -348
Step-by-step explanation:
substitution a and b in equation
hope it helps you ☺️
-5y= -4x+ 12 Y=4/5x + 12/5
Answer:
(15/16)" + (3/32)" = (33/32)" = 1.03125" of material from the rod. since each pin needs to be (15/16)" = 0.9375" we have enough rod for one more pin.
<u>ANSWER</u>
(Choice A)
-4(3e+4)
<u>EXPLANATION</u>
The given expression is

We expand to get:

We regroup the terms to get:

Simplify now to get:

We now factor -4 to obtain:

The correct choice is A.