Answer:
A
Step-by-step explanation:
Logan withdrew 32, leaving 8, how much was in account before withdraw
x-32=40
so
x-32=8
One way to write a linear equation is the formula y = mx + b where m is the slope of the function and b is the y-intercept. For this reason, it is known as slope-intercept form.
The slope os calculated via the formula . Lets calculate the slope of the equation first.
So the slope is -0.12. This means for every minute of time used, $0.12 of credit is used. Next, lets plug in the value for m, and the values of an x and y point to find b.
y = 0.12x + b
23.16 = -0.12(57) + b
23.16 = -6.84 + b
30 = b
So, our final equation is y = -0.12x + 30.
Finally, we can use this equation to find the answer to the last part by plugging the value into x.
y = -0.12(60) + 30
y = -7.2 + 30
y = 22.8
So when 60 minutes have been used, there will be $22.80 worth of credit left.
Answer:
<em>6497</em>
Step-by-step explanation:
127% is the same as 1.27
Let the number be x.
127% of a number x is the same as 1.27x.
1.27x = 8251
x = 6497
The number is 6497.
2/3 cup of oatmeal - 10 granola bars
When the number of cups of oatmeal increases, the number of granola bars also increases.
If you use for example twice as many cups of oatmeal, you'll make twice as many granola bars.
Therefore, the first step is to calculate how many times 20 cups of oatmeal is more than 2/3 cup of oatmeal. To do it, divide 20 by 2/3.
You have 30 times as many cups of oatmeal, so you'll make 30 times as many granola bars.
300 granola bars can be made with 20 cups of oatmeal.