TAEMALAKEidn
Answered

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2. Find the value of y in the following proportions,
b.
o
2-3
d.
3
3y - 2
2
ytt
C.
6
29
y +5
28
a.
21
12
4
4. Find the ratio e :f, if 5e2 - 13ef - 6f2 = 0 where
e and f 0.
3. If min = 5:3, find 3m + 4n: 6m - 2n.​

2 Find The Value Of Y In The Following Proportionsbo23d33y 22yttC629y 528a211244 Find The Ratio E F If 5e2 13ef 6f2 0 Wheree And F 03 If Min 53 Find 3m 4n 6m 2n class=

Sagot :

Pantonalidn

Answer:

The value of y in the following proportion,

[tex]a. \frac{y}{21}=\frac{28}{49} \\ 49y=28(21)\\ 49y=588\\ \frac{49y}{49} =\frac{588}{49\\ }\\ y= 12\\\\ b.\frac{y+5}{12} =\frac{9}{4\\ } \\ 4(y+5)= 9(12)\\ 4y +20=108\\ 4y+20-20=108-20\\ 4y=88\\ \frac{4y}{4} = \frac{88}{4} \\ y=22\\ \\ c.\frac{y+4}{6}=\frac{7y}{3}\\ 3(y+4)=7y(6)\\ 3y+12=42y\\3y-3y+12=42y-3y \\ 12=39y\\ \frac{39y}{39} =\frac{12}{39} \\ y=\frac{12}{39} or4/13\\ \\ d.\frac{2y-3}{3}=\frac{3y-7}{2} \\ 2(2y-3)=3(3y-7)\\ 4y-6=9y-21\\ 4y-6+6=9y-21+6\\ 4y=9y-15\\ 4y-9y=9y-9y-15\\ -5y=-15\\ y=3[/tex]

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-Pantonal