Answer:
5.5x + 1.5
Step-by-step explanation:
P = 2(l + w)
P = 2(1.25x + 3 + 3x - 1.5)
($3756/100)(100+12)/100
$37.56(1.12)
$42.0672
$42.07 (to nearest cent)
Answer: All real numbers
Step-by-step explanation: If you plug in any number, it will work. 4(a+3) = 12+4a. a=-3 0=0
Answer:
x + Y = 39 or x = 39-y
20x + 50y = 1.40
20 (39 - y) + 50y = 11.40
7.80 - 20y + 50y = 11.40
30y = 11.40 - 7.80
30y = 3.60
y = 3.60/30
y = 12 50p coins were collected.
x = 39 - 12 = 27 20p coins were collected.
Proof:
20*27 + 50*12 = 11.40
5.40 + 6 = 11.40
11.40 = 11.40
I hope it helps.
40% of 85 is 34 so 85-34=51
51 is your answer