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quester [9]
3 years ago
7

Forgot how to do this pls help ​

Mathematics
1 answer:
Natali5045456 [20]3 years ago
3 0

Answer:

the equation is 10x+50=120

the rate of change is 10x (time)

the initial value is 50

the total value is 50

he will need to save for 7 weeks

Step-by-step explanation:

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Suppose y varies directly with x. If y = 6 when x = 2, find x when y = 12.
igomit [66]

Answer:

x = 4 when y = 12

Step-by-step explanation:

The ratio of y to x is 6:2. If you multiply either one of them, you must do the same to the remaining number. So, when you multiply 6 by 2 to get 12, you must also multiply 2 by 2 to keep the ratio equal and the same. 2x2 = 4, so x=4 when y=12. Hope this helped! Good luck with other math problems :)

3 0
4 years ago
Simplify 3(4x + 6) - 9x.<br><br> -15x + 18<br> 3x + 18<br> 3x + 6<br> 12x + 18 - 9x
Kamila [148]
Hi there!

To simplify this equation we first need to distribute.

(3)(4x) + (3)(6) + - 9x
= 12x +18 + - 9x

Next, combine like terms.

= 12x + 18 + - 9x
= (12x + - 9x) + (18)
= 3x + 18

In simplified form, 3 (4x + 6) - 9x is 3x + 18.

Hope this helps!
5 0
4 years ago
Read 2 more answers
How do you do this problems?
rewona [7]

x = 6

Step-by-step explanation:

It's based on similarity of triangles

DEF ~ △XYZ

\implies \mathsf{ \frac{DE }{ XY } =  \frac{EF}{YZ} =  \frac{ FD}{ZX}}

The sides should be taken in order, like the triangles start with DE and XY so, we'll proportionate DE and XY and then the next two sides and so on.

I'm using \mathsf{ \frac{DE }{XY } =  \frac{EF}{YZ} }to get the value of x.

[You can use any two fractions out of the three given above. ]

\implies \mathsf{ \frac{10}{x - 1} =  \frac{8}{4}  }

\implies \mathsf{ \frac{10}{x - 1} =  2  }

\implies \mathsf{ 10 =  2 (x - 1) }

\implies \mathsf{ 10 =  2 x - 2 }

\implies \mathsf{ 10  + 2=  2 x  }

\implies \mathsf{ 1 2=  2 x  }

\implies \mathsf{ x = 6 }

Hence, the value of x is 6.

5 0
3 years ago
Which equation applies the associative property?
Artyom0805 [142]
The associative property states that you can add or multiply regardless of how the numbers are grouped. By 'grouped' we mean 'how you use parenthesis'. In other words, if you are adding or multiplying it does not matter where you put the parenthesis. Add some parenthesis any where you like!.
6 0
4 years ago
1 MORE
gavmur [86]

Answer:

Bai!

Step-by-step explanation:

Thanks for the 50 points!

Stay safe and have a wonderful day/night!! :)

Brainliest?!?!

6 0
3 years ago
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