You can solve this in two ways.
First way:
Let’s find out how many my friend makes in one minute.
12/5=2.4
He makes 2.4 in one minute. Let’s multiply that by 20 to find what he makes in 20 minutes.
2.4•20=48
My friend made 48 desserts.
Second way:
Let’s make a ratio.
12 desserts:5 minutes
X desserts: 20 minutes
Whatever you do to one side, you have to do to the other. Since you are multiplying the minutes by 4, you have to multiply the desserts by 4.
12•4=48
So, my friend made 48 desserts.
Tell me if this helps!!!
Answer: 764
Step-by-step explanation:
Answer:
Step-by-step explanation:
it's 2ab + c^ 2
why?, well, we can change the position of the 2 triangle in each corners into this (in the picture below) :
you can see that a^2 + b^2 = c^2
then there are 2 ab from 4 triangles we add that create 2 rectangle then we multiply each rectangles by its sides
so , c^ 2+ 2ab is the answer
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hope this is helpul!