A+B=15 —>A+15=B(plug this into the other equation)
60a+30b=600
60a+30(a+15)=600
60a+30a+150=600
90a+150=600
90a=450
A=5 (plug back in to first equation)
A+B=15
5+B=15
B=10
They have 5 of the Model A and 10 of model B.
Answer:

Step-by-step explanation:
Given the triangular prism with:
- Height of the Triangle =6cm
- Base of the Triangle =7cm
- Length of the Prism =10cm
Volume of a Prism= Base Area X Length of the Prism

The volume is 210 cubic centimeter.
Hey there!
To solve this, divide the numbers 1/4 and 5 . . .
1/4 = 1/4
5 = 5/1
1 x 1 = 1
4 x 5 = 20
= 1/20
1/20 is already in it's simplest form, so it doesn't need to be simplified.
There are 1/20 liters of water in each glass.
Hope this helps you.
Have a great day!
Answer:
S = a² => 20 = a² => a = √20 ≈ 4.5 cm
Step-by-step explanation: