Step-by-step explanation:
a.
if her cousin is 10 years old Clare would be 15 years old
because 10+5 = 15
if her cousin is 2 years old Clare would be 7 years old
because 2 + 5 = 7
if her cousin is x years old Clare would be x+5 years old
because x+ 5 = x+ 5
b. Clare's cousin is 7 years old
because 12 - 5 = 7
Answer:
n=3
Step-by-step explanation:
8n + 2 = 5n + 11
Subtract 5n from each side
8n-5n + 2 = 5n-5n + 11
3n+2 = 11
Subtract 2 from each side
3n+2-2 = 11-2
3n = 9
Divide by 3
3n/3 = 9/3
n =3
Answer:
Evaluate means to assess or determine something.
Step-by-step explanation:
Answer:The answer is -3 and 3. You can do this by using a graphing calculator and plugging in the equation.
So the trick I was taught to use was PEMDAS which stands for Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction. You solve the parenthesis first, followed by exponents if there are any. Multiplication and division are equal. So if there's multiplication and division in the problem, you solve the one closest to the left or start of the equation first. The same rules apply for addition and subtraction. They are both equal so you solve the first one first, even if the subtraction is before the addition.