Answer: It should be 91/4
Answer:
1¹/63
Step-by-step explanation:
- × - = +
10/63+6/7
the lcm of 63 and 7 is 63
<u>1</u><u>0</u><u>+</u><u>5</u><u>4</u> = <u>6</u><u>4</u>
63. 63
1¹/63
Parents granted you some dollars and asked you to spend at least 30 dollars on a trip to the local park. You know that the base fare for renting a car to the park is 10 dollars plus three dollars per each person.
What is the minimal number of friends that you should take to spend all the money you won?
Answer:
7
Step-by-step explanation:
x+16=4x-5
slove for x
Answer:
+ 9
Step-by-step explanation:
Given the expression is a perfect square of the form
(ay + b)² = a²y² + 2aby + b² = 49y² + 42y +
Comparing coefficients of like terms
a² = 49 ( take the square root of both sides )
a = 
= 7
2ab = 42 ( divide both sides by 2 )
ab = 21 , then
7b = 21 ( divide both sides by 7 )
b = 3, thus
b² = 3² = 9
Hence
49y² + 42y + 9 = (7y + 3)²
