If the length of a side is x, then the surface area of a face of the cube is x squared. there are six sides in a cube so 6(x^2) would be the surface area.
6(x^2)=150
(x^2)=25
x=5
Grandma should be able to make three slices of French toast by slicing one of the original slices into two.
<h3>How can grandma make three slices of French toast?</h3>
- Put two slices of bread in the pan and cook them for one minute (first minute)
- Turn both slices over and cook ( second minute)
- Remove both slices and slice one of this into two. This will mean the new slices will have one side cooked and another one that is not cooked.
- Cook these thinner slices (third minute).
- The result would be three cooked slices, although two of them would be thinner.
Learn more about French toast in: brainly.com/question/11713135
#SPJ1
Answer:
Rational
Step-by-step explanation:
See pic below ↓
Given:
The rate of interest on three accounts are 7%, 8%, 9%.
She has twice as much money invested at 8% as she does in 7%.
She has three times as much at 9% as she has at 7%.
Total interest for the year is $150.
To find:
Amount invested on each rate.
Solution:
Let x be the amount invested at 7%. Then,
The amount invested at 8% = 2x
The amount invested at 9% = 3x
Total interest for the year is $150.
Multiply both sides by 100.
Divide both sides by 50.
The amount invested at 7% is 
.
The amount invested at 8% is
The amount invested at 9% is
Thus, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.
Hello! First off, we can find the unit rate on what it would cost per pizza. Divide the total amount by the number of pizzas. 10.50/3 is 3.5. It costs $3.50 per medium pizza. Now, we can multiply that amount by 10 to get the amount for 10 pizzas. 3.5 * 10 is 35. There. It costs $35 to buy 10 medium pizzas.
