Answer:
Step-by-step explanation:
If Mira has 10 more bottles than Noura, what Noura has, just add 10 to it, and that will be how many bottles Mira has.
For the table, if Noura has 2 bottles, 2 + 10 = 12, so Mira would have 12 bottles.
To find how many bottles Noura has, subtract 10 from whatever Mira has.
For example, from the table, Mira has 11 bottles in the 3rd column, so 11 - 10 = 1, so Noura would have 1 bottle.
For the number sentence:
n more than 10 equals m
Unless you're looking for an equation:
n + 10 = m
We need to find which statement is not true:
Let us check each statement:
-They are opposite numbers.
Opposite numbers have the same distance away from zero. Hence, 7 and -7 are opposite numbers.
-They form a zero pair:
7-7 =0, the statement is true.
- They have the same absolute value
The absolute value is the not negative value no matter the sign.
Hence, l7l= 7 and l-7l= 7.
-They have a sum of -14.
Then:
7+(-7) = 0
Therefore, the last statement "They have a sum of -14" is not true.
Simplifying
3x2 + -5 = 70
Reorder the terms:
-5 + 3x2 = 70
Solving
-5 + 3x2 = 70
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + 5 + 3x2 = 70 + 5
Combine like terms: -5 + 5 = 0
0 + 3x2 = 70 + 5
3x2 = 70 + 5
Combine like terms: 70 + 5 = 75
3x2 = 75
Divide each side by '3'.
x2 = 25
Simplifying
x2 = 25
Take the square root of each side:
x = {-5, 5} and that’s it.
