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Ghella [55]
3 years ago
6

10 and two tens, and then double the amount, and 5, 3, and 2. How much now?

Mathematics
1 answer:
DENIUS [597]3 years ago
8 0
Down load photo math
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3/4x^2+8x+20=0 factor
elena-s [515]

\frac{3}{4}  {x}^{2}  + 8x + 20 = 0
multiplied by 4
3 {x}^{2}  + 32x + 80 = 0 \\ (3x + 20)(x + 4) = 0 \\ so \: x =  -  \frac{20}{3}  \: or \: x =  - 4
6 0
3 years ago
One month Isabel rented 5 movies and 2 video games for a total of$26 . The next month she rented 3 movies and 8 video games for
Scorpion4ik [409]

Answer:

a movie, m is 3

a video game, v is 5.5

Brainliest would be really appreciated. (need it to unlock chat)

Feel free to ask further questions if you feel like it.

Till then, have a nice day

Step-by-step explanation:

I 5m+2v=26

II 3m+8v=53

I 5m+2v=26 devide by 2 on both sides

5/2m+v=13 subtract 5/2m om both sides

v=13-5/2m

Now put this whole thing in the other equation II, replacing the v there

3m+8(13-5/2m)=53 just calculate it

3m+104-20m=53

-17m+104=53 subtract 53 on both sides

-17m+51=0 add 17m on both sides

51=17m devide by 17

3=m

we found m, v is easy

now put m in an equation from the start, let's take equation I here

I 5m+2v=26

5*(3)+2v=26

15+2v=26 subtract 15 on both sides

2v = 11 devide by 2

v = 5.5

So we found m and v, prices for single items. we can proof this when we put m and v into a given equation and the if it equals a true value

m & v in II

II 3m+8v=53

3*(3)+8*(5.5)=53

9+44=53

53=53

Seems legit.

5 0
3 years ago
8374 exponential notation
Aleksandr-060686 [28]
What does that mean then what do we need to do
sorry for asking

6 0
3 years ago
Read 2 more answers
Which of the following is the equation for a circle with a radius of rand center
klasskru [66]
The Answer would be C !
3 0
2 years ago
Find the slope of the line that passes through the pair of points listed below.<br> (-2, -3), (6,5)
antoniya [11.8K]

Finding the slope using two points:

The formula for slope is

\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

In this case...

y_{2} =5\\y_{1} =-3\\x_{2} =6\\x_{1} =-2

^^^Plug these numbers into the formula for slope...

\frac{5-(-3)}{6 - (-2)}

\frac{8}{8}

1

^^^This is your slope

Hope this helped!

~Just a girl in love with Shawn Mendes

5 0
3 years ago
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