Algebra Homework HELP!!?
Order of operations state multiplication and division come before addition and subtraction. For either - read left to right. 1. First simplify 30 * -2 and 12 / 2 gives you: -60 + 6 - 5 read left to right: -54 - 5 which is the same as: -54 + -5 which = -59 2. You need to get the x alone on one side, so move everything else over to the other side. first add 7 to both sides gives you: -x/5 = -3 next, get rid of the 5 by multiplying both sides by 5 gives you: -x = -15 finally, get rid of the negatives by multiplying both sides by -1 gives you: x = 15 3.$x for one month, $x for second month, and $x for third month = 3 times $x (since $x is the same amount for each month). Add 40 to that: 3x + 40 and he has enough for the shoes (which are $115). Final answer: 3x + 40 = 115 or c
Algebra homework help?
wow this is hard. what you need to do is set up an 2 equations 12g+0.8s=100 <-the toatal price of the alloy $5 per gram or $100 for all g+s=20 <- you need to have a total of 20 grams g=gold s=silver then you have to find numbers that replace the variables but make both equation true. srry i dont know the final answer but that's one way to do it btw i think the final answer may be about 6 1/2 gold and 13 1/2 silver
Help with this algebra homework?
So -14x+6y=4 just simplify to -8x+3y=2 Now go to the other problem and do this 6x-10=8 So 6x=18 hence x=3 Just plug the 3 back in and then you have your awnser. x=3 y=7.666 repeated.
Help on Algebra Homework?
your x*2 = x^2 (^=Shift +6 on the keyboard) 2x+30+x*2 + 2x + 10 + 8x -- 10 + x*2 + 10 = 360 12x + 2x*2 + 40 = 360 (Correct so far) 6x + x*2 = 160 (you subtracted 40 on both sides and then divided by 2, but there's an faster, easier/less complicated way to do this) 6x + x*2 -- 160 = 0 I see.... so let's rearrange this a bit x^2 + 6x - 160 , find factors of -160 that will equal to 6 in this case it's -10 and 16. so (x-10)(x+16) or (x+16)(x-10) will work either way since result is the same when you FOIL it
I need help with my algebra homework...?
When multiplying fractions, it's always... top x top and bottom x bottom so, -6 x 3 = -18 7 x 8 = 56 which is 18/56, or 9/28 :)
Help on pre algebra homework?
im doing the real number system:list all that apply... -real -rational -irrational -integer -counting -whole 1) -15 2) square root of 30 3) 6 4) -13 5) 10/11 6) -13 7) square root of 80/2 8) 6/7 9) - square root of 196 10) -16/-2 11) 11 12) 17/3 13) 0 14) 3 15) 14 16) 3.14 17) square root of 77 18) square root of 0 19) -1 20) 135/-3
Algebra homework, please help?
A man sold x similar books for $132 altogether. If he had sold (x - 1) books but charges $1 more for each book, he would have received the same amount of money. Find the value of x. Please show your working and please give a reason for each step, if possible.
Please help me with algebra homework?
Set up an algebraic equation and solve the problem. The ratio of male students to female students at a certain university is 4 to 7. If there is a total of 14,850 students, find the number of male students and the number of female students. male students_______ female students ______
Help me, please! Algebra homework.?
1st one: 5/2y +3 = 4/y -3 (5+6y)/2y = (4-3y)/y (find common denominator) y(5+6y) = 2y(4-3Y) (cross-multiply) 5y+6y^2 = 8y - 6y^2 (simplyfy)... 12y^2-3y = 0 y (12y-3) = 0 (factor out y) either y = 0 or 12y-3 = 0 y1=0; 12y=3 y1=0; y2= 3/12 y1=0; y2= 1/4