Answer:
18 nickels, 6 dimes, and 9 quarters
Step-by-step explanation:
nickels dimes and quarters
x y and z
x+y+z=33
y+3=z
3y=x
3y+y+y+3=33
5y+3=33
5y=30
y=6
z=9
x=18
Hope this helps plz hit the crown :D
Answer:
P=(2x*2+x-3)L+ (x+7)2w
Step-by-step explanation:
Answer:
x = (1/6y)+(-11/6)
Step-by-step explanation:
Step 1: Flip the equation.
6x+6=y−5
Step 2: Add -6 to both sides.
6x+6+−6=y−5+−6
6x=y−11
Step 3: Divide both sides by 6.
6x
/6
=
y−11
/6
x=
(1
/6
y)+
(−11
/6)
Answer:
x = (1/6y)+(-11/6)
I don't know what the "six-step method" is, but I do know how to solve the problem:
Let x = number of gallons of 50% solution
amount of antifreeze in 50% solution = 0.50x
amount of antifreeze in 10% solution = 0.10(80) = 8
amount of 40% solution = 0.40(x+80) = 0.40x + 32
Then, 0.50x + 8 = 0.40x + 32
0.10x = 24
x = 240 gal
Answer:
x = 29.7 or 29.69848480
Step-by-step explanation:
Use the formula a² + b² = c²
21² = 441
20² = 400
400 + 441 = 882
√882 = 29.7
You square the number at the end to cancel out the squared number, since both 21 and 20 aren't originally squared.
