Answer:
x=-5/2, x=3
Step-by-step explanation:2
2 * -15=-30
-6*5=-30
2x^2-6x+5x-15=0
2x(x-3)+5(x-3)=0
(2x+5)(x-3)=0
2x+5=0 x=-5/2
x-3=0 x=3
SA = (Base Area • 2) + (Base Perimeter • Distance)
= (10*6 * 2) + (10 + 10 + 6 + 6 * 4)
= (60 * 2) + (32*4)
=120 + 128
SA = 248 inches squared
Answer:
13 quarters, 26 nickels.
Step-by-step explanation:
n will be number of nickels, q will be number of quarters, and we have 39 total coins
so n + q = 39 (number of nickels + number of quarters = 39 coins.
The problem also says there are twice as many nickels as quarters. so we can call the number of nickels n or we can call it 2q (2 times the number of quarters)
which means
n + q = 39
2q + q = 39
3q = 39
q = 13
and she has 2 times as many nickels as quarters... 2 x 13 = 26 nickels
LMK if you have questions.
If you want to double check the money,
n(0.05) + q(0.25) = 4.55 is the equation to use.
26(0.05) + 13(0.25) = 1.3 + 3.25 = $4.55
Answer:
number of cards in a house hold and number of siblings
Step-by-step explanation:
