We know there is 57 members are in the math club and there is twice as many sixth grades than the seventh. To find out how many sixth graders are in the club, we do:
x = seventh graders
2x = sixth graders
2x + x = 3x
57=3x
57 ÷ 3 = 3x ÷3
19 = x
So there is 19 seventh graders and 19×2= 38 sixth graders
What is the black box? and u solve that by forgetting the c is there so 4-10= -6 or -6c
Answer:
$45
Step-by-step explanation:
4 lbs = $18
2 lbs = $9
10 lbs = $45
Answer:
The midpoint is ( 7,-6)
Step-by-step explanation:
To find the x coordinates of the midpoint, add the x values of the endpoints and divide by 2
( 6+8)/2 = 14/2 =7
To find the y coordinates of the midpoint, add the y values of the endpoints and divide by 2
( -3+-9)/2 = -12/2 =-6
The midpoint is ( 7,-6)
24 bottles @ $3 = 8 bottles per dollar
12.5 cents per bottle
36 bottles @ $4 = 9 bottles per dollar
11.1 cents per bottle