The perimeter is the sum of all the sides, so P = (5x -7) + (3x-4) + (2x -6). Then group like terms so you have p = 5x + 3x + 2x -7-4-6 and end up with P = 10x - 17
Answer:
88,306
Step-by-step explanation:
Multiplying times 7 steps:
Step 1. 8 x 7 = 56
Step 2. 1 x 7 = 7
Step 3. Add the 5 from step 1. 7 + 5 = 12
Step 4. 3 x 7 = 21
Step 5. Add the 1 from step 3. 21 + 1 = 22
Step 6. 1 x 7 = 7
Step 7. Add the 2 from step 5. 7 + 2 = 9
Equals = 9226
Steps for times 6:
Step 1. 6 x 8 = 48
Step 2. 1 x 6 = 6
Step 3. Add the 4 from step 3. 6 + 4 = 10
Step 4. 3 x 6 = 18
Step 5. Add the 1 from step 3. 18 + 1 = 19
Step 6. 1 x 6 = 6
Step 7. Add the 1 from step 5.
Equals = 79080
Now add the two 9226 + 79080 = 88, 306
Took me a while to work out and explain lol.
Use this website called mathpapa.com
It’s really helpful and completely free
Hope this helped!
Answer:
262 books sold
Step-by-step explanation:
This is a very vague word problem, but if it truly is just asking the amount of books sold (regardless of music or science), here's how to get the answer:
1. 287+134=421 - first you want to add together the two types of books to get the total amount of books in the store
2. 421-x=159 - create an equation and solve.
3. -x=-262 - follow order of operations and subtract 421 on both sides in order to isolate the variable
4. x=262 - divide each side by -1 to make the variable positive.
If you'd like an easier way, you can just:
1. 421-159=262 - it's easier, but my math teacher would count us wrong if we didn't do equations a specific way. Good luck!
Yes, that's a statement. Another example of a statement is "(0,0) is the origin." Something that wouldn't be considered a statement is something like "pi is a boring and confusing number."
Hope this helps!
