Ask question

Ask question

All categories

3 years ago

14

Mrs. Balcon owes the dentist $342. She wants to have her payments taken from her checking account over the next 7 1/2 months. By

what amount will her account change each month for the first 7 months?

1 answer:

kiruha [24]3 years ago

7 0

Answer:

$45.60 per month

Step-by-step explanation:

She owes the dentist $342.00

you take $342.00 divided by 7.5(the amount of months)

and get $45.60 per month

You might be interested in

kirza4 [7]

120 students are in the 7th grade.

8 0

2 years ago

Read 2 more answers

Please help me really need help in this math proplem

nadya68 [22]

.h.i. i think i know the answer

5 0

2 years ago

Solve and i give brainliest

Temka [501]

Answer:

0.25

Step-by-step explanation:

-9/6 divided by 3/-2 = 0.25

i am sorry

4 0

2 years ago

Read 2 more answers

I will give brainlist please someone help!!!

Cerrena [4.2K]

Answer:

x = 6

Step-by-step explanation:

Alternate angles are congruent.

7x - 9 = 3x + 15 {Subtract 3x form both sides}

7x - 3x -9 = 15

4x - 9=15 {Add 9 to both sides}

4x = 15+9

4x = 24

x = 24/4

x = 6

6 0

3 years ago

At what values of x does f(x) = x^3 - 2x^2 -4x+1 satisfy the mean value theorwm on [0,1]

denis-greek [22]

Answer:

x=1/3

Step-by-step explanation:

A function f is given as

$f(x) = x^3-2x^2-4x+1$ in the interval [0,1]

This function f being an algebraic polynomial is continuous in the interval [0,1] and also f is differntiable in the open interval (0,1)

Hence mean value theorem applies for f in the given interval

$f(1) = 1-2-4+1 = -4\\f(0) = 1$

The value

$\frac{f(1)-f(0)}{1-0} =\frac{-4-1}{1} =-5$

Find derivative for f

$f'(x) = 3x^2-4x-4$

Equate this to -5 to check mean value theorem

$3x^2-4x-4=-5\\3x^2-4x+1=0\\\\(x-1)(3x-1) =0\\x= 1/3 : x = 1$

We find that 1/3 lies inside the interval (0,1)

4 0

3 years ago