Ask question

Ask question

All categories

2 years ago

13

johhny borrowed $15 per month from his mom to pay for his school supplies at the end of the course he owed his mom $135 how many

months did johnny have to buy supplies for the art class?

2 answers:

dusya [7]2 years ago

6 0

9 months,
$135 \ \div 15 = 9$

masya89 [10]2 years ago

6 0

9 months.

$135 divided by $15 is 9.

You might be interested in

Which of the following digits could replace the ? In the tens place to make this statement true 63?5 rounds to the 6370 if we ro

anyanavicka [17]

?=6 so the number would be 6365 but sorry if it's wrong :/

4 0

3 years ago

I'm bored. Someone talk to me :)

Oduvanchick [21]

Answer:

greetings

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Calculus help! Using the mean value theorem!

marta [7]

$f$ is differentiable across its domain, so the MVT says there is some value of $c$ in the open interval $(a,b)$ such that

$f'(c)=\dfrac{f(b)-f(a)}{b-a}$

You have

$f(x)=Ax^2+Bx+C\implies f'(x)=2Ax+B$

so the equation above becomes

$2Ac+B=\dfrac{(Ab^2+Bb+C)-(Aa^2+Ba+C)}{b-a}$

Solve for $c$ .

$2Ac+B=\dfrac{A(b^2-a^2)+B(b-a)}{b-a}$
$2Ac+B=A(b+a)+B$
$2Ac=A(b+a)$
$c=\dfrac{b+a}2$

so $c$ is indeed the average of the endpoints, i.e. the midpoint.

8 0

3 years ago

4(3+2x) + 2 = 46 , solve for x I need help I'm a bit confused

Reil [10]

Answer:

x=4

Step-by-step explanation:

4(3+2x)+2=46

12+8x+2=46

12+8x=44

8x=32

x=4

8 0

3 years ago

Read 2 more answers

Use the probability distribution to complete parts (a) and (b) below.

Vitek1552 [10]

this could take a while to think about but uhh i dont know,

8 0

2 years ago