Let x=number 1 let y=number2
there sum is equal to 70
then
number1+number2=70
substituting
x+y=70
y=70-x
let there product will be p
p=xy
substituting
p=x(70-x)
which is choice c
Answer:
Matthew: $ 3.60
Jade: $3.90
Step-by-step explanation:
2x + 2x = 14.50
-> 4x = 14.50
-> $3.60
4x + 3x = 27
-> 7x = 27
-> $ 3.90
Answer:
0.1/4-3/20=1/40-6/40=-1/8 200% of this is -1/4
Step-by-step explanation:
1) slope= -5/2 Y-intercept= -1
2) slope= 3/2 Y-intercept= 3
3) slope= -7/3 Y-intercept= 4
4) slope= -4/9 Y-intercept= -3
5) slope= -2/1 Y-intercept= 2
6) slope= 1/2 y-intercept= -1
7) slope= 5/2 Y-intercept= -4
8) slope= -1/3 Y-intercept= 1
9) slope= 1/2 Yintercept= 4
10) slope= -2/3 y-intercept= -2
Answer:
$2000
Step-by-step explanation:
For each pound, the charge is $40. There are 50 such charges. The point of multiplication is to simplify the process of repeated addition.
... 50 × $40 = $2000