Ask question

Ask question

All categories

3 years ago

10

In the past month, Lisa rented 7 video games and 1 DVD. The rental price for each video game was $2.30. The rental price for the

DVD was $3.80. What is the total amount that Lisa spent on video game and DVD rentals in the past month?

1 answer:

Zepler [3.9K]3 years ago

3 0

Answer:

$19.9

Step-by-step explanation:

She spent $16.1 on video games and plus $3.80 for the DVD added all up is $19.9

You might be interested in

Helpppp pls. Rotate traingle TUV 90 degrees clockwise around the origin

lutik1710 [3]

T -1,-1 ect ect hope helps

7 0

2 years ago

What value of x makes this equation true?<br> -12 + 5x = -24 + x

Alex

Answer:

Step-by-step explanation:

-12+5x=-24+x

4x=-12

x=-3

4 0

3 years ago

Prove that an = 4^n + 2(-1)^nis the solution to

olga nikolaevna [1]

Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute $a_n=4^n+2(-1)^n$ in the equation $a_n=3a_{n-1}+4a_{n-2}$ the equality is true.

Let's substitute first in the right hand side:

$3a_{n-1}+4a_{n-2}=3(4^{n-1}+2(-1)^{n-1})+4(4^{n-2}+2(-1)^{n-2})$

Now we use the distributive laws. Also, note that $(-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n}$ (this also works when the power is n-2).

$=3(4^{n-1})+6(-1)^{n-1}+4(4^{n-2})+8(-1)^{n-2}$

$=3(4^{n-1})+(-1)(6)(-1)^{n}+4^{n-1}+(-1)^2(8)(-1)^{n}$

$=4(4^{n-1})-6(-1)^{n}+8(-1)^{n}=4^n+2(-1)^n=a_n$

then the sequence solves the recurrence relation.

4 0

3 years ago

Question 5 (1 point)

Leokris [45]

A: Add up to 180 degrees

8 0

3 years ago

3 more questions . geometry!!! please help

never [62]

10 is B
9 is C
11 isB
Hope this helped :)

5 0

3 years ago