Two Step and Multi Step Equations
-4 + x/2 = -1
x = 6
4/5 = x/3
12/5
Sam eats 5 pounds of cookies in 4 days. How many days will it take him to eat 17 pounds?
13 3/5 days
am = r , for a
a = r/m
y = mx + b , for x
x = (y-b)/m
(x-3)/4 = -2
x = -5
3/6 = (p-9)/7
25/2
It takes 4 gallons of gas to get some machine to run for 7 hours. How much gas is needed to run the machine for 2 hours?
1 1/7 gallons
w-a = c+d-k , for a
a = -c-d+k+w
A = (1/2)bh , for h
h = 2A/b
-3(5x+1)+27x=6+3(4x-5)
7/n = 3/(n+9)
-63/4
Mrs. Sanders uses 1 bag of seed to cover 2/3 of an acre. How many bags of seed will she need to buy for 7 and a half acres?
11 1/4 bags to cover which means buy 12 bags
-4a + r = 9w , for a
a = (9w - r)/-4
or for double
a = (-9w + r)/4
V = h(pi)r^2 , for h
h = V/((pi)r^2)
3(2x-1)+4 = 7x+1
(m+7)/(m+10) = 7/2
-56/5
Quin throws 500 balls a week. How many days will it take him to throw 1245 balls?
17 43/100 days
txy/w = m , for x
x = mw/ty
F = (9/5)C + 32 , for C
C = (F - 32)/(9/5)
or for double
C = 5(F - 32)/9
3(4x-1)-4(2x-6)=3x+5x-4
x = 25/4
(p-3)/8 = (p-8)/9
-37
The distance from Barcelona to New York City is 3831 miles. How many inches is that?
242,732,160 inches
t/a + 4 = 3sd , for a
a = t/(3sd-4)
V = (h/3)(pi)r^2 , for r
r = sqrt(3V/h(pi))