1. 14-1/5(j-10)+2/5(25+j)
2. 1/8 (5y+6)=1/4 (20 +2y)
2007-10-14 15:23:57 · 9 answers · asked by Anonymous in Education & Reference ➔ Homework Help
the question is 1/8 (5y+64)=1/4(20+2)
and the second question is 14-1/5(j-10)=2/5(25+j)
2007-10-14 15:35:14 · update #1
1.
14-1/5 (j-10)= 2/5 (25+j)
14-1/5j +2= 10+2/5j
16-1/5j=10+2/5j
16-1/5j+1/5j=10+2/5j+1/5j
16=10+3/5j
16-10=10+3/5j-10
6=3/5j
6(5/3)=3/5j(5/3)
10=j
2.
1/8 (5y+64)= 1/4 (20 +2y)
5/8y +8= 5+1/2y
5/8y+8-1/2y= 5 +1/2y -1/2y
1/8y+8=5
1/8y+8-8=5-8
1/8y=-3
y=-24
2007-10-14 15:48:36 · answer #1 · answered by Taylor 2 · 1⤊ 3⤋
Sorry. Jack's got the right idea, but 2/5 * 25 = 10, not whatever he's got there. Also, 40 - 6 = 34.
Okay... saddle up... here we go. The first thing you want to do with these is go ahead and multiply everything out, so you can isolate the variables.
1. 14 - 1/5 (j - 10) + 2/5 (25 + j) Watch the signs on this one. Remember that a minus sign means you are multiplying by a negative.
14 - 1/5 j + 2 + 10 + 2/5 j Now, adding the numerals and like terms... we get
14 + 2 + 10 + 2/5 j - 1/5 j
26 + 1/5 j
If you're solving for j, just set this equal to 0 and solve:
26 + 1/5 j = 0
1/5 j = -26 Multiplying by 5...
j = -130
2. 1/8 (5y + 6) = 1/4 (20 + 2y)
Remember when multiplying using fractions and whole numbers, its' the same as multiplying by the whole number over 1.
Let's see what we get
5/8 y + 6/8 = 5 + 1/2 y
Subtracting 6/8 from both sides, we get
5/8y = 5 + 1/2 y - 6/8
Subtracting 1/2 y from both sides...
5/8 y - 1/2 y = 5 - 6/8
Combining like terms... and converting 6/8 to 3/4
1/8 y = 5 - 3/4
1/8 y = 4 1/4
Here's a handy little thing to remember. To get y, you'll need to multiply both sides by 8. Always, when you have fractions of variables, to get rid of the fractions just multiply by the inverse fraction... 1/8 's inverse is 8/1. So..
y = (4 1/4) x 8
y = 34
2007-10-14 15:44:10 · answer #2 · answered by Anonymous · 1⤊ 3⤋
14-1/5(j-10)=2/5(25+j)
70-(j-10)=2(25+j), both side times 5
70-j+10=50+2j
80-j=50+2j
-j-2j=50-80
j=10
2
1/8 (5y+6)=1/4 (20 +2y)
(5y+6)=2(20 +2y), both side times 8
5y+6=40+4y
5y-4y=40-6
y=34
2007-10-14 15:38:06 · answer #3 · answered by B.P. 3 · 3⤊ 0⤋
medical Notation is a range between a million and 9 situations 10 raised to a skill. 2.sixty 4 x 10 raised to the eighth skill. to come across a share you may want to do the variety eaten out of the finished variety. 40 six/264 (million) = .17 or 17% To make the circle: A circle is 360 stages. so that you may want to calculate the share of 360 stages for each merchandise. Use a protractor to degree the quantity of the circle you opt for for each. each and every of the angles, extra at the same time, will equivalent 360 stages. i wish this helps. Sue
2016-10-21 04:28:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋
writing
1. 14-1/5(j-10)+2/5(25+j)
Multiply by five to get rid of denominators
70-(j-10)+2(25+j)
70 -j +10 + 50 +2j
=130 + j
2. 1/8 (5y+6)=1/4 (20 +2y)
Multiply by 8 to get rid of denominators
5y + 6 = 2(20 +2y)
y = 34
2007-10-14 15:25:54 · answer #5 · answered by ignoramus 7 · 0⤊ 5⤋
we are having problems solving fractions...
is number 1 like this:
14- 1 (j -10) + 2 (25 + j)
_ _
5 5
2007-10-14 15:33:43 · answer #6 · answered by nats.. 3 · 0⤊ 4⤋
1- 13.5j-135+10+2/5j
13.9j - 125
2007-10-14 15:30:29 · answer #7 · answered by mario t 1 · 0⤊ 4⤋
THE FIRST ANSWER IS 1/5J+26 THE SECOND ANSWER IS ASSUMING THAT YOUR = SIGN IS A + SIGN THEN YOUR ANSWER IS 23/4+9/8Y
2007-10-14 15:32:03 · answer #8 · answered by raven1984 2 · 0⤊ 4⤋
I don't understand your jibberish. ;)
2007-10-14 15:31:43 · answer #9 · answered by Peterbattahoggabatta 5 · 0⤊ 4⤋