Answer:
x = ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
Step-by-step explanation:
Note that
= 14
Expressed in exponent form as
= 14, thus
x = ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
Given:
Total number of marbles in the bag = 150
There are 21 blue marbles for every 4 white marbles.
To find:
The number of blue marbles in the bag.
Solution:
Since, there are 21 blue marbles for every 4 white marbles, therefore the ratio of blue marble to white marbles is 21:4.
Let the number of blue marbles be 21x and white marbles be 4x.
Total number of marbles in the bag = 150
![21x+4x=150](https://tex.z-dn.net/?f=21x%2B4x%3D150)
![25x=150](https://tex.z-dn.net/?f=25x%3D150)
Divide both sides by 25.
![x=\dfrac{150}{25}](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B150%7D%7B25%7D)
![x=6](https://tex.z-dn.net/?f=x%3D6)
Now,
![\text{Blue marbles}=21x](https://tex.z-dn.net/?f=%5Ctext%7BBlue%20marbles%7D%3D21x)
![\text{Blue marbles}=21(6)](https://tex.z-dn.net/?f=%5Ctext%7BBlue%20marbles%7D%3D21%286%29)
![\text{Blue marbles}=126](https://tex.z-dn.net/?f=%5Ctext%7BBlue%20marbles%7D%3D126)
Therefore, the number of blue marbles is 126.
start by plugging in the value you already have, in this case, 5 for y.
-4x-3(5)=17
-4x-15=17
-4x=32
x=-8
however, since a is a+1, a would be 7 (making x 8)
also plz tell me if i read this wrong and it’s actually 1,5 rather than a+1 and 5 cause if i did i’m so sorry lol.
Answer:if y=0
Step-by-step explanation: view y as 0, so you have 2*0*(-8+0+7)=0
every number multiplied by 0 is 0 so 2*0 is 0 then in the brackets you will have -1. So the final line is 0*-1=0 like I said every number multiplied for 0 is 0 the equation is true for y=0