Answer:
Step 3.
Operation error, where the sign on the number changes from -ve to +ve where shifted to the left side of the equation.
Step-by-step explanation:
Given that 2(10 - 13x) + 9x = -34x + 60
<u>Step 1. Distribute</u>
20-26x+9x=-34x+60
<u>Step 2: Combine like Terms</u>
20-17x=-34x+60 -------------------------(-26x+9x = -17x)
<u>Step 3: subtraction property of equality</u>
-17x+34x=60-20--------------------- (60-20 =40)
-17x+34x=40
<u>Step 4 :Addition property of Equality</u>
-17x+34x=40-------------------(-17x+34x =17x)
17x=40
<u>Step 5: Division property of Equality</u>
17x=40
17x/17 = 40/17
x=40/17
Answer
x=40/17
<u>Errors</u>
In step 3
-17x+34x = 17 x and not 51x
In step 5
-51x=40
x=-40/51 (not the other way round, -51/40) however correct operation is supposed to be;
17x=40, hence x =40/17
Answer:
x = 
Step-by-step explanation:
3(2x - 3) + 4(2 - x) = 0 ← distribute parenthesis
6x - 9 + 8 - 4x = 0 , that is
2x - 1 = 0 ( add 1 to both sides )
2x = 1 ( divide both sides by 2 )
x =
Answer:
Number 4: Using Pythagoras Theorem,
Number 5:
3:
It is a right triangle
4:
Not a right triangle
For the last one:
Rounded down (because the answer needs to be a whole number) is 21
Well think about it
50 pages = 1 hour (60 mins)
so it would take laine 4 hours in total to read 200 pages at the rate
hope that helps :)
The rate of change is meaning the slope. The slope of A is 8, therefore, the answer would be 7.
hope this helps :)
