A=adult
c=children
total lumber=30
total number=adults+children
a+c=30
total cost=50
total cost=acost+ccost
acost=a times cost per adult=a times 3=3a
ccost=c times cost per child=c tiems 1=1c=c
total cost=3a+c
50=3a+c
equiaotn are
a+c=30
3a+c=50
multiplyu first by -1 and add
3a-a+c-c=50-30
2a=20
a=10
sub
10+c=30
c=20
answer is A
Answer:
About 3%
Step-by-step explanation:
It decreased.
3% of 465056=13951
465056-13951=451105
3.6% of 465056=16742
465056-16742=448314
The amount you want it 450678 and 451105 is closer to 450678 than 448314.
Answer:
3x36
Step-by-step explanation:
Because he is getting 36 3 times so 3x36
By a Fourth grader
Answer:
D
Step-by-step explanation:
Slope: (2-1)/(-3-2) = -⅕
y = (-⅕)x + c
1 = (-⅕)(2) + c
c = 7/5
y = (-1/5)(x) + (7/5)
5y = -x + 7
x + 5y = 7
