A and D
Explanation: I did this problem in khan academy
Answer:
Solution given:
b=9 base side of isosceles triangle
a=
Answer:
a + c = 30
8a + c = 100
a=10, c= 20
Step-by-step explanation:
cost = 8a + 1c since it is 8 dollars for adult and 1 for child where a is the number of adults and c is the number of children
a+c = 30 since we know that 30 adults and children went
100 = 8a + 1c and it cost 100 dollars
Let c =30 -a
100 = 8a + (30-a)
100 = 7a +30
Subtract 30 from each side
70 = 7a
Divide by 7
10 =a
Then a+c = 30
10+c = 30
c = 30-10
c = 20
450 times 87 plus 14 equals 69
Answer:
m= -4
Step-by-step explanation:
use the slope formula m=rise/run y2-y1/x2-x1
