Sam bought 15 pies and 7 slices of cake for $55.25. if each pie cost 2/5 as much as a slice of cake, what was the total cost of 1 pie and 2 slices of cake

$10.20

Step-by-step explanation:

Let's first collect the information from the word problem.

1. Create an equation/expression:

To solve the problem, we need to find the price of a pie and cake slice.

Using the information gathered, the equation is:

x = the cost of the slice of cake.

2. Simplify/Solve

Remember that the pie is of a slice of cake, so now find the price of the pies.

Pie =

Pie = $1.70

3. Check your work!

Check to make sure the math is done correctly!

Good! It is verified that our calculations are correct.

4. Solve!

1 pie and 2 cakes cost:

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629