So here is how we are going to answer the problem above:
Given that f is the cost of French fries and b is the cost of Hamburger.
So: 5f + 6b = 4.55
5f = 4.55 - 6b (multiply both sides by 6) and we get
30f = 27.3 - 36b
Next,
6f + 10b = 7.00 (multiply both sides by 5) and we get
30f + 50b = 35 (Now substitute the value of 30f)
27.3 - 36b + 50b = 35
14b = 35 - 27.3
14b = 7.7 (divide both sides by 14)
b = 0.55
Therefore, the cost per hamburger is $0.55
Now go back to the cost of fries:
30f = 27.3 - 36b
30f = 27.3 - 36(0.55)
30f = 27.3 - 19.8
30f = 7.5 (divide both sides by 30)
f = 0.25
Therefore, the cost per french fries is $0.25
Hope this helps.
Answer:
200.4 at 0.25%
Step-by-step explanation:
Given data
P= P200
r= 0.25%
t= 1 year
n= 12
A= P(1+ r/n)^nt
substitute
A= 200(1+ 0.0025/12)^12*1
A= 200(1+ 0.00020833333)^12
A= 200(1.0002)^12
A= 200* 1.002
A= 200.4
Hence the amount is 200.4 at 0.25%
16 for the first one
25.2 for the second one
48 times every 90 secnds for the 3rd one
12 for the 4th one
18 for the 5th one
.57 for the last one
Well, you need to add together how much wood you need. one side is 4 1/4 long & the other side is 5 1/8 long. you need to find a common denominator before you add.
multiply the numerator and denominator of the first number by 2.
4 1/4 × 2 = 4 2/8
multiply the numerator and denominator of the second number by 1 because you already have common denominators.
5 1/8 × 1 = 5 1/8
now you can add.
4 2/8 + 5 1/8 = 9 3/8
9 3/8 does not simplify.
therefore Mrs. Edwards only needs to buy the smallest amount of wood available, which is 12 inches.
