Answer:
Step-by-step explanation:
5 1/4 is converted to 21/4. Then you multiple 8/9 and 8/21 which is: 21/4*8/9*8/21=16/9 and is 17.777777778
Answer:
Rose bought 14 packages of granola bars.
Step-by-step explanation:
Total bill = 1 bag of potatoes + x amount of packages of granola bars
Total bill = $74.25
1 bag of potatoes = $6.00
1 package of granola bar = 5.25
We set the equation to:
74.25 = 6.00 + 5.25x
Subtract 6.00 from both sides:
68.25 = 5.25x
Divide both sides by 5.25 to leave x by itself
68.25/5.25 = 5.25x/5.25
13 = x
This means Rose bought 13 packages of granola bars.
Let's recheck our work by inputting x = 13 into the equation:
74.25 = 6.00 + 5.25(13)
74.25 = 6.00 + 68.25
74.25 = 74.25
Answer:
$312.5
Step-by-step explanation:
Step one
given data
time = 18 months= 1.5 years
Simple Interest= $12
rate= 3.2%
Required
The Principal P
Step two:
The expression for simple interest is
SI=PRT/100
substitute
12=P*3.2*1.2/100
cross multiply
12*100= 3.84P
divide both sides by 3.8
P=1200/3.84
P=$312.5
Answer:
Step-by-step explanation:
23(9x-6) = 4x +10
207x - 138 = 4x +10
203x = 148
x = 148/203
or
3(9x-6) = 4x +10
27x -18 = 4x + 10
27x - 4x = 10 + 18
23x = 28
x= 28/23
