younganastasia1
19.12.2019 •
Mathematics
Sarah is selling cookies and brownies to raise money for her school trip. she needs to raise at least $350. she is selling cookies for $1 and brownies for $2. let x represent the number of cookies and y represent the number of brownies. write an inequality to represent how many cookies and brownies sarah would have to sell to have enough money for her trip?
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Ответ:
Brownies are $2 each 2y
And she needs at least $350 means she can make either more that 350 or exactly 350 hence the inequality will be
x + 2y ≥ 350
Ответ:
an absolute value equation is :
|(x+5)(x+10) |=0