Question

3. Haley, Chuck, Dana, and Chris enter a contest to see who could bake the most chocolate chip cookies in an hour. Haley bakes 50, Chuck bakes 65, and Dana bakes 90. If they bake and average of 75 cookies, how many cookies does Chris bake?

Answer 1

Chris baked 95 cookies.

Step-by-step explanation:

Given,

Cookies baked by Haley = 50

Cookies baked by Chuck = 65

Cookies baked by Dana = 90

Average of them = 75

Let,

Cookies baked by Chris = x

Average = $\frac{Sum\ of\ quantites}{No.\ of\ people}$

$75=\frac{50+65+90+x}{4}$

Multiplying both sides by 4

$4*75=\frac{50+65+90+x}{4}*4\\300=205+x\\300-205=x\\95=x\\x=95$

Chris baked 95 cookies.

Keywords: addition, average

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• brainly.com/question/11286417
• brainly.com/question/12884373

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