Answer:
T1he values for x and y of the equations is y = 11, and x = -19/5.
Step-by-step explanation:
To solve this question, we need to rearrange the expression:
5x+4y=25 - (5x+2y=3)
Look, if we subtract one equation to the other, then:
5x+4y=25 [1]
-(5x+2y=3) [2]
Which is the same as:
5x+4y=25
-5x-2y=-3
Subtract them:
5x+4y=25
-5x-2y=-3
---------------
2y =22
y = 22/2 = 11
Then, y = 11.
To find x, we can substitute<em> y</em> in either equation [1] or [2].
Let us use [1]
5x+4y=25
5x+4(11)=25
5x+44=25
5x=25-44
5x=-19
x = -19/5
Then, the values for x and y of the equations is y = 11, and x = -19/5.
5+14=19 I hope I help you out
Answer:
a.) 2:1
b.)1:2
Step-by-step explanation:
girls=2/3 *100=%66.66
boys=1/3 *100=%33.33
a.)66.66/33.33 = 2:1
b.)33.33/66.66 = 1:2
Answer:A that is what I think the answer is
In terms of prime factors,
12 = 1 x 12
= 1 x 2 x 6
= 1 x 2 x 2 x 3
28 = 1 x 28
= 1 x 2 x 14
= 1 x 2 x 2 x 7
Therefore
![\frac{12}{28}= \frac{2\times2\times3}{2\times2\times7} = \frac{3}{7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B12%7D%7B28%7D%3D%20%5Cfrac%7B2%5Ctimes2%5Ctimes3%7D%7B2%5Ctimes2%5Ctimes7%7D%20%20%3D%20%5Cfrac%7B3%7D%7B7%7D%20)
Answer: