Answer:
Step-by-step explanation:
Let
x= Quantity of donuts
y= Quantity of cupcakes
He bought 3 times as many donuts as cupcakes
Donuts=y= 3x
Donuts=0.50 each
Cupcakes=1.00 each
PxQx + PyQy = 10.00
0.50(x) + 1.00(y) = 10.00
0.50x + 1.00(3x)=10.00
0.50x+3.00x=10.00
3.50x=10.00
Divide both sides by 3.50
x=10.00/3.50
=2.86
y=3x
y=3(2.86)
=8.58
Jamal bought 2.86 donuts and 8.58 cupcakes
Check:
PxQx + PyQy = 10.00
0.50(2.86) + 1.00(8.58) = 10.00
1.43 + 8.58=10.00
10.01=10.00
10.01 approximately 10.00
When you mark up a price, multiply the original price by 1 plus the amount of the mark up as a decimal.
15% = 0.15 + 1 = 1.15
$60 x 1.15 = $69
<h3>
Answer: 9</h3>
===================================================
Explanation:
The area of the parallelogram is equal to the base times height. The formula to use is A = b*h. The height and base are always perpendicular to one another.
The base is some unknown variable b. Multiply the base by the height 15 to get 15*b which is equal to the area 135
Therefore, 15*b = 135
Divide both sides by 15 and we isolate b
15b = 135
15b/15 = 135/15
b = 9
So the base is 9
Check:
area = base*height = 9*15 = 135
so the answer is confirmed
side note: we never use the value 17 at all. It is likely put in there as a distraction.
Answer:
4.24
Step-by-step explanation:
Answer:
4 divided by one-sixth = 2
Step-by-step explanation:
Given 4fraction bars
If each fraction bars has 6boxes, then we can get the total boxes for 4fractiom bars as shown;
1 fraction bars = 6boxes
4fraction bars = x
Cross multiply
1 × x = 4×6
x = 4× 6/1
x = 4 ÷ 1/6
Hence the division problem that modelled the expression is 4 ÷ 1/6
4÷1/6 = 4×6/1
4÷1/6 = 24
Option A is correct
