Lets be a price of the calculator - $ a
then , after using the coupon, you need to pay $(a-18)
and after using 15% discount , you need to pay (1-0.15)a=0.85a
then, if
(a-18) will be more than 0.85a, you should prefer 0.15 % discount, because it will be cheaper,
a-18> 0.85a
a-0.85a>18
0.15a > 18
a>120, that means that if the price of the calculator more than $120, 15% discount is better,
but if the price of the calculator is less than $120, you should choose $ 18 coupon.
for example, we have the price of the calculator $100
100-18=82,
100*0.85 =85, coupon is better.
If the price of the calculator $200
200-18=182,
200*0.85=170, so 15% discount is better
if price of the calculator is $120,
120-18=102
120*0.85=102,
it will not matter, what you are going to use, because you are going to pay the same amount of money
Answer:
Doodoo
Step-by-step explanation:
doodoo
Answer:
See Below.
Step-by-step explanation:
We are given that ∠A = ∠D, and we want to prove that ΔACB ~ ΔDCE.
Statements: Reasons:
Answer:
If cookies are for $1 and brownies are for $2, let number of cookies = x and number of brownies = y
∴ $1*(x*1) + $2*(y*1) = $13
Step-by-step explanation:
1) You can buy 4 brownies for $2 each = 2*4 = $8
The rest you can buy cookies = 5 cookies = $5
$8+$5=$13
2) You can buy 5 brownies and 3 cookies = $10+$3 = $13
3) You can buy 3 brownies and 7 cookies = $6+$7=$13
Equation: -
If cookies are for $1 and brownies are for $2, let number of cookies = x and number of brownies = y
∴ $1*(x*1) + $2*(y*1) = $13
Answer:
a.10 years 1 / 10 x 100 10% per year
b. 8 years 1 / 8 x 100 12.5% per year
c. 25 years 1 / 25 x 100 4% per year
d. 40 years 1 / 40 x 100 2.5% per year
e. 5 years 1 / 5 x 100 20% per year
f. 4 years 1 / 4 x 100 25% per year
g. 20 years 1 / 20 x 100 5% per year
Step-by-step explanation:
Under straight line method of depreciation, equal amount of the depreciation is reduced throughout the useful life of the asset. Using the following formula:
<u>Straight line depreciation rate = 1 / Useful Life x 100
</u>
So:
a.10 years 1 / 10 x 100 10% per year
b. 8 years 1 / 8 x 100 12.5% per year
c. 25 years 1 / 25 x 100 4% per year
d. 40 years 1 / 40 x 100 2.5% per year
e. 5 years 1 / 5 x 100 20% per year
f. 4 years 1 / 4 x 100 25% per year
g. 20 years 1 / 20 x 100 5% per year
