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kolezko [41]
3 years ago
15

A tutor schedules either 30-minute sessions or 60-minute sessions with her students.Last week, the tutor gave 8 sessions which l

asted for a total of 7 hours. How many 60-minute sessions did the tutor give last week?
ANSWER THIS QUICKLY PLEASE! THANKS!
Mathematics
2 answers:
umka2103 [35]3 years ago
6 0
6 one hour sessions and 2 half hour sessions for a total of 8 sessions. Answer: 6
Mazyrski [523]3 years ago
5 0
The tutor gave 7 sessions that lasted 60 minutes last week.

7x60=420

420minutes in total, divided by 60min session = 7 sessions that lasted 60 minutes

I hope this helped, and you understand
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Use the Remainder Theorem to determine f(2) when f(x) = -x3 + 6x - 7
saul85 [17]

Step-by-step explanation:

f(2)= -2×2×2+ 6×2 -7

=-8+12-7

=-3

7 0
3 years ago
Write a quadratic relation in the form y = ax2 + bx + c with roots 4 and - 3 and
pochemuha

Answer:

y =  2*x^2 - 2*x - 24

Step-by-step explanation:

If we have a quadratic function with roots a and b, we can write the equation for that function as:

y = f(x) = A*(x - a)*(x - b)

Where A is the leading coefficient.

In this case, we know that the roots are: 4 and -3

Then the function will be something like:

f(x) = A*(x - 4)*(x - (-3) )

f(x) = A*(x - 4)*(x + 3)

Now we need to determine the value of A.

We also know that the graph of the function passes through the point (3, -12)

This means that:

f(3) = -12

Then:

-12 = A*(3 - 4)*(3 + 3)

-12 = A*(-1)*(6)

-12 = A*(-6)

-12/-6 = A

2 = A

Then the equation is:

y = f(x) = 2*(x - 4)*(x + 3)

Now we need to write this in standard form, so we just need to expand the equation:

y = f(x) = 2*(x^2 + x*3 - x*4 - 4*3)

y = f(x) = 2*(x^2 - x - 12)

y = f(x) = 2*x^2 - 2*x - 24

Then the relation is:

y =  2*x^2 - 2*x - 24

4 0
3 years ago
***PLZ HELP ME***
erica [24]
A is inbetween 2 and 4
B is inbetween 3 and 4
 C is inbetween 4 and 5
D is inbetween 5 and 6

So the correct answer would be A B and C
8 0
3 years ago
Read 2 more answers
MARKING BRAINLIEST <br><br> PLS HELP
beks73 [17]
It would be the f(x+3) + 2
4 0
3 years ago
Read 2 more answers
Define a substitution method to solve the followingsysten of equation of y=2x-3, x+y=1
Ivan
I will solve you system by substitution

y = 2x - 3 ; x + y = 1

→Step 1: Solve y = 2x - 3 for y

→Step 2: Substitute 2x - 3 for y in x + y = 1:

x + y = 1 

x + 2x- 3 = 1

3x - 3 = 1 (Simplify both sides of the equation)

3x - 3  + 3 = 1 + 3 (Add 3 both sides)

3x = 4 
 
3x ÷ 3 = 4 ÷ 3 (Divide each side by 3)

x = 4/3

→Step 3: Substitute 4/3 for x in y = 2x - 3:  

y = 2x - 3 

y = 2 (4/3) -3 

y = -1/3 (Simplify both sides of the equation)

Answer: 

x = 4/3 and y = -1/3

∫Hope that helps∫
7 0
3 years ago
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