In the equation x is the feet of width.
If the original width is 2 feet, then X^2 = 2^2 = 4
If the width changes to 4 feet, then x^2 becomes 4^2 = 16
The change is 16 - 4 = 12
The answer should be B. $12 per foot.
<span>Residual value is the difference between the observed value of the dependent variable (y) and the predicted value (ŷ) in a data set.
i.e. Residual value = given value - predicted value
From the table, the residual value corresponding to a has 4.1 as the given value and 4.5 as the predicted value.
Therefore, a = 4.1 - 4.5 = -0.4
Similarly, </span><span>the residual value corresponding to b has 7.2 as the given value and 7.05 as the predicted value.
Therefore, b = 7.2 - 7.05 = 0.15
</span>
Therefore, a = -0.4 and b = 0.15
Answer:
2/15 pound of dog food
Step-by-step explanation:
John has 4/5 of a pound of dog food left to share equally among 6 dogs in his pet shop. How many pounds of food can he give to each dog?
From the above question, we can deduce that:
6 dogs = 4/5 pound of dog food
1 dog = x pound of dog food
Cross Multiply
6 dogs × x pound = 1 dog × 4/5 pound of dog food
x pound = 1 dog × 4/5 pound of dog food/6 dogs
x pounds = 4/5 ÷ 6
x pounds= 4/5 × 1/6
x pounds = 4/30
x pounds = 2/15 pound of dog food
Therefore,if the dog food is shared equally, he can give each dog 2/15 pound of dog food.
Answer:
8/20 and 12/30 are equivalent to 4/10.
Step-by-step explanation:
You just have to multiply the numerator and denominator by the same number.
Lets say x is the smaller number and y is the bigger number.
x + y = 436
x + 134 = y
We can substitute the second equation into the first (substitute x + 134 in for y)
x + (x+134) = 436
2x + 134 = 436
2x = 302
x = 151
We can now plug this back into either formula (i use the second)
151 + 134 = b
b = 285
The 2 numbers are 151 and 285
