The factors of 28 are 1, 2, 4, 7, 14, and 28.
<span>The factors of 70 are 1, 2, 5, 7, 10, 14, 35, and 70. </span>
<span>The common factors are 1, 2, 7, and 14. Therefore, the greatest common factor is 14. </span>
Answer:
68
Step-by-step explanation:
79 - 11 is 68, so I think 68 is the answer.
Answer:
$20 per day with a $50 fee
Step-by-step explanation:
For 1 day, the gold fee is $70. For 2 days, the gold fee is $90. This can be written as the ordered pairs (1, 70) and (2, 90).
To find the daily fee, we will find the slope between the points:
![m=\frac{y_2-y_1}{x_2-x_1}\\\\=\frac{90-70}{2-1}\\\\=\frac{20}{1}=20](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%5C%5C%5C%5C%3D%5Cfrac%7B90-70%7D%7B2-1%7D%5C%5C%5C%5C%3D%5Cfrac%7B20%7D%7B1%7D%3D20)
Next we will use point-slope form:
y-y₁ = m(x-x₁)
y-70 = 20(x-1)
Use the distributive property:
y-70 = 20(x)-20(1)
y-70 = 20x-20
Add 70 to each side:
y-70+70 = 20x-20+70
y = 20x+50
This means the fee is $50.