Annie's Attic does not have a proportional relationship but Bettie's Boutique does. The constant of proportionality at Betty's Boutique is 0.8.
Step-by-step explanation:
Step 1; To have a proportional relationship, if x's value varies, the y's value should also vary. If x increases, y increases correspondingly while if x decreases, y should also decrease.
Step 2; For Annie's Attic, the sale price = Original price - $5.
No matter what the value of the original price, there is only a difference of $5. Even if the price is increased to $100 the discount will only be $5. So this is not a proportional relationship.
Step 3; At Bettie's Boutique, they are having a 20% off sale. Whatever the cost, 20% is reduced. If bought for $15, price is $15 - 20% = $12. If bought for $25, the price will be $25 - 20% = $20.
If the original price is taken as x as the sale price is y, the relationship is given by; y = (100% - 20%) × x = 80% × x = 0.8 × x. So y = 0.8x. Here the constant of proportionality is 0.8.
Answer:
50 miles per hour
Step-by-step explanation:
In this question, we are asked to substitute the information given into the equation. First we need consistency on units. Hence the 1hr 30 minutes is same as 1.5hrs
Now since d =rt
We need to get r = d/t
This means r = 75/1.5 = 50 miles per hour
Answer:
The answer is D
Step-by-step explanation:
Simplify the first inequality subtract 5 from 20
5t≤ −15
then divide
t ≤ -3
Simplify second ineqality
4t ≥ 20
divide
t ≥ 5
final answer :
t ≤ −3 or t ≥ 5
Answer:
12
Step-by-step explanation:
idk why I'm trying to get points I need them
