Joshua wants to burn at least 400 calories per day, but no more than 600. He does this by walking and playing basketball. Assuming he burns 4 calories per minute walking, w, and 5 calories per minute spent playing basketball, b, the situation can be modeled using these inequalities:
4w + 5b ≥ 400
4w + 5b ≤ 600
Which are possible solutions for the number of minutes Joshua can participate in each activity? Check all that

answer:

a=9

step-by-step explanation: lmk if you need a explanation

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step-by-step explanation:

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step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

the answer is c.

perimeters = 3√10/5

areas = 90/25

i got it down chief.