Answer:
3) r = 1.5
7) y = 18
11) x = -10
Step-by-step explanation:
3) Isolate the variable by dividing each side by factors that don't contain the variable.
7) Solve for y by simplifying both sides of the equation, then isolating the variable.
11) Move all terms that don't contain x to the right side and solve.
Given:
The two numbers are 1280 and 630.
To find:
The HCF of the given numbers.
Solution:
First write the given numbers in prime factorization form.
Now the product of all the common prime factors is known as the HCF of 1280 and 630.
Therefore, the HCF of 1280 and 630 is 10.
Answer:
<h2><u><em>
9</em></u> </h2>
Step-by-step explanation:
Two numbers have a sum of 23 and a difference of 5. What is the smaller of the two numbers.
x + y = 23
x - y = 5
(23 - 5) : 2 = 9
9 + 5 = 14
check
14 + 9 = 23
14 - 9 = 5
