Use the substitution method to solve the system of equations. Then check your solution. 1.) b=-4a+5 a-b=5
2.) 6x-y=-15 x+2y=17
3.) x=10 y=2x-6
4.) n=-7m-4 14m+2n=-8
Answers
1. a=2 b=-3 2. 3.x=10 y=14 4. I'll do the rest in 5 mins
The ages of people signed up for piano lessons are listed.11, 16, 15, 9, 19, 12, 13, 13, 11, 11, 18, 17
What is the mode of the ages?
A. 12
B. 15
C. 13
D. 11
Answers
mode is the number that shows up the most in a data set and in this data set 11 shows up three times more than any other number the answer would be D. 11
Answer: It's 11
Step-by-step explanation:
Just took the test
336 oz equals to ho manylbs
Answers
16 ounces is a pound and the answer is 21 pounds
The answer is 21 because 1 lb is 16 so 336 divide by 16 equals 21 so 1 multiply 21 is 21
If the sales tax is 6.75%, how much tax would Adrian pay if he bought two CD's at $16.99 each and one DVD for $36.29.
Answers
CD:2 at $16.99 each=$33.98 DVD:1 at $36.29 $33.98+$36.29= $70.27 6.75%*70.27=4.743225 round to the nearest tenth: 4.74 Andrian will pay $4.74 as sales tax
the ratio of Jane to Maria's income is 8:5. If jane's income is $400 what is Maria's income? How much more greater is Jane's income compared to Maria'?
Answers
part 1 8:5 400:250 notice that to keep proportion, you must multiply each side by 50 part 2 find the difference 400-250
Three sections of fence need to be painted each section is made up of four equal sized boards Alexs paints 1/6 of the fence bobby pins twice as much as Alex Charles paints only one board David paints the rest who paints the largest part of the fence
Answers
If you would like to know who paints the largest part of the fence, you can calculate this using the following steps:
three sections of the fence ... 3 sections four equal sized boards ... 4 boards 3 * 4 = 12 boards
Alex: 1/6 of 12 boards = 1/6 * 12 = 2 boards Bobby: twice as much as Alex = 2 * 2 boards = 4 boards Charles: 1 board David: 12 - 2 - 4 - 1 = 5 boards
Result: The largest part of the fence paints David (5 boards).