X+y+z=t
simple..
there are no other numbers that we have to follow like (1/2x or 3/4y) so it is just all together=t. the x, y, z will equal t because t is the total number of students taking three languages. And that number should be equivalent to x,y,z combined.
otherwise?? i d k<span />
First we have to find how much water leaked
5galllons-3 gallons=2 galllos of water leaked
Now we know
![\frac{2 galllons}{10 minutes}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%20galllons%7D%7B10%20minutes%7D%20)
Finally we can simplify it
![\frac{2 gallons}{10 minutes}= \frac{1 gallon}{5 minutes}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%20gallons%7D%7B10%20minutes%7D%3D%20%5Cfrac%7B1%20gallon%7D%7B5%20minutes%7D%20%20)
- its the answer
Answer:
35% discount
Step-by-step explanation:
We can first find what percent of 32 20.80 is.
This can be shown by using a percent proportion.
![\frac{20.80}{32} = \frac{x}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B20.80%7D%7B32%7D%20%3D%20%5Cfrac%7Bx%7D%7B100%7D)
We can cross multiply to find the value of
.
![20.80\cdot100=2080\\\\2080\div 32 = 65](https://tex.z-dn.net/?f=20.80%5Ccdot100%3D2080%5C%5C%5C%5C2080%5Cdiv%2032%20%3D%2065)
So 20.80 is 65% of 32.
However, this is the percent of the original price. To find the discount, we have to subtract 65 from 100.
![100 - 65 = 35](https://tex.z-dn.net/?f=100%20-%2065%20%3D%2035)
So the book was on a 35% discount.
Hope this helped!
Responder:
<em>a) 1
</em>
<em>b) 12
</em>
<em>c) 3
</em>
<em>d) -1 y 3
</em>
Explicación paso a paso:
Dadas las siguientes ecuaciones;
a) x²-x =0
x² = 0+x
x² = x
x = 1
b) -x²+12x = 0
-x² = -12x
x² = 12x
x = 12
c) 3x² - 9x = 0
Suma 9x a ambos lados
3x²-9x+9x = 0+9x
3x² = 9x
3x = 9
x = 9/3
x = 3
d) x²-2x-3 = 0
x²-3x+x-3 = 0
x(x-3)+1(x-3) = 0
(x+1)(x-3) = 0
x+1 = 0 y x-3 = 0
x = -1 y 3
Answer:
k < 3/7
Step-by-step explanation:
Step 1:Sinplify both sides of the inequality
10k <-4k+6
Step 2: Add 4k to both sides
10k + 4k < -4k + 6 + 4k
14k < 6
Step 3:Divide both sides by 14
14k/14 < 6/14
k <3/7
Note:Provided by Mathpapa an Algebra caculator