Given that,
Shelley's pet food store sold one customer 5 peanut butter biscuits for $3. She sold another customer 7 beef treats for $4.20.
For peanut, the cost is ratio is

For beef, the ratio is

If we take cross product of these items,

It implies, that the sale is in true proportion. From the cross product, we find that it is equal.
that's-- on edmentum isn't it?
first pair is -3
second pair is -2
third pair is 0'
and the last one is 5
that what i think it is .....????
The probability of *NOT* getting all 11 tails is 91/100
Answer:
y = 2x + 20


Step-by-step explanation:
Vlad spent 20 minutes on history. Then Vlad spent 2 minutes on each math problem for homework, this is 2x. So in total, he spent 20+2x on homework. Depending on how many problems he did, the total time y can be found. This is the equation 20+2x=y.
If Vlad did 0 math problems then he spent at least 20 minutes on homework from history. This is the constraint
.
We also know Vlad can do many math problems but the least amount he did was 0, so the second constraint is
.
Answer:
25%, 40 trees, 50%, 36 trees