Answer:
13 AND 14
Step-by-step explanation:
THERE IS NO PICTURE OR ANY ANSWERS
Hello!
To solve this, first say x = number of hours grading.
We can set up fractions to represent how much each one of them can grade in one hour. To do this, divide the number of essays by the number of hours it would take for them to grade them. Therefore, the professor would be able to grade 5/2 essays in one hour, and her assistant would be able to grade 7/3 essays in one hour.
Now, set up your equation.
5/2x + 7/3x = 40
Since x = number of hours spent grading, multiply that by the respective fractions we calculated earlier to get the number of essays they would grade in x hours. Set the equation equal to 40 as you are looking for 40 essays done.
Now, solve the equation. First, set a common denominator, add the two fractions together, then simplify.
5/2x + 7/3x = 40
15/6x + 14/6x = 40
29/6x = 40
x = 40/(29/6)
x = 40 * (6/29)
x = 240/29
x = about 8.3
Therefore, your answer is about 8.3 hours, or about 8 - 9 hours.
Hope this helps!
Answer:
624 miles
Step-by-step explanation:
We know that there are 12 months in a year, and you need to find out the total miles she walks in two years, which is 24 months.
So we multiply 26(24)
This is equal to 624 miles
To find teh equation of the line we need the slope of that line and the co ordinates of the one point through which it is passing
here we are given only two points through which it is passing
this can help us to find slope .
We start with finding the slope of the line passing through x1 y1 and x2 y2
that is m= ( y2- y1) divide by ( x2-x1)
here we h ave : x1= -2 and y1 = 7 , x2= 3 and y2 = 12
slope of the line would be : ( 12- 7 ) divide by ( 3 - -2 )
slope of the line = 5 / 5 = 1
Equation of the line having slope m and passing through x1 y1 is :
we have found ,m= 1
Y= m( X- x1) + y1
Y= 1 ( X- -2 ) + 7
Y= X+2 + 7
Y= x+ 9 that is the equation of the required line
Answer : Y = x+9
Are all these the choices??
None of these can actually be the answer