Kristin paid $18.60 for 3 pounds of candy.

Mathematics

2 answers:

Bezzdna [24]3 years ago

8 0

Answer:

Step-by-step explanation:

Per pound of candy = 18.60 ÷ 3 = 6.2

No you cannot even buy a candy for 1

givi [52]3 years ago

3 0

Answer: a) $6.20 per pound b) 5/31 pound per $1

Step-by-step explanation:

$\dfrac{\$18.60}{3\ lbs}\div \dfrac{3}{3}=\dfrac{\$6.20}{lb}\quad \rightarrow \quad \large\boxed{\$6.20\ per\ lb}$

$\dfrac{ 1\ lb}{\$6.20}\div \dfrac{6.20}{6.20}=\dfrac{\frac{1}{6.20}\ lb}{\$1.00}\quad =\dfrac{\frac{10}{62}\ lb}{\$ 1.00}\quad =\dfrac{\frac{5}{31}\ lb}{\$1.00}\quad \rightarrow \quad \large\boxed{\dfrac{5}{31}\ lb\ per\ \$1}$

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What are the restrictions for y <br> X=10/5+y

Naya [18.7K]

Answer:

$y\ne-5$

Step-by-step explanation:

So you have the equation:

$x=\frac{10}{5+y}$ . As you may know, you cannot divide by 0, so y has to be restricted in a way that the denominator is never equal to 0. So to find when y makes the denominator 0, simply set the denominator equal to 0, and solve for y. This gives you the equation: 5+y = 0, y=-5. So the y value CANNOT be equal to -5. Because it makes the denominator 0. so $y\ne-5$ would be the restriction.