How does x=3?
Simple. 5x-7=8 is the equation displayed.
We add 7 to both sides so we can try to cancel as many things as possible. 5x-7+7=8+7 ===>15.
We now have to cancel that 15 to get x. We do the opposite of multiplying by 5 (seen when 5 and x are together) we divide by 5 to both sides ====> 5x/5=15/5 ======> x=3. Thus, x is equal to 15!
Hope this helps!!!
Answer:
No
Step-by-step explanation:
Answer:
465.75 or 465.8 rounded to the nearest tenth
Step-by-step explanation:
You would multiply 16.2 and 14.5 and divide by 2 to get 117.45. You then multiply by 3 for the 3 sides to get 352.35. Lastly, to find the area of the base you would need to multiply 16.2 and 14 and divide it by two to get 113.4. Add it with the 3 sides and you get 465.75.
First lets change the fractions so they have common denominators:
3/5 = 6/10
The bank was 1/10, after adding the pennies it was 6/10
6/10 - 1/10 = 5/10 = 1/2
This means 400 pennies filled 1/2 the piggy bank.
There are 2 halves (1/2) to a whole ( full piggy bank).
The piggy bank can hold 400 x 2 = 800 pennies.
It doubles the answer so if your sum is 2 it will become 4