Answer:
Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x
Thus, option A) is true.
The solution to the system of equations be:
Step-by-step explanation:
It is important to remember that when we solve the system of equations, the first step we need to do is to solve one of the equations for one of the variables.
Given the system of equations
Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x
Add y to both sides
Thus, option A) is true.
<u>NOW LET US SOLVE THE REMAINING PORTION</u>
to solve for y
For x = -1 + y
substitute y = 5
Thus, the solution to the system of equations be:
Answer:
16 and 48
Step-by-step explanation:
let the 2 integers be x and 3x ← ratio 1 : 3
Then
3x - x = 32 ← difference between the integers
2x = 32 ( divide both sides by 2 )
x = 16
and 3x = 3 × 16 = 48
Since magnitude of difference is 32
We can also express the difference as
x - 3x = 32
- 2x = 32 ( divide both sides by - 2 )
x = - 16
and 3x = 3 × - 16 = - 48
The 2 integers are 16 and 48 or - 16 and - 48
<h2>
Answer:</h2>
The dollar price of the Japanese toy is: $ 4.
<h2>
Step-by-step explanation:</h2>
Exchange rate--
It the value of currency of one country in term's of the currency of the other country.
Here it is given that:
The yen per dollar exchange rate is 5.
This means that:
5 yen= $ 1
This means that:
(5×4) yen=$ (1×4)
i.e.
20 yen=$ 4
Now the cost of Japanese toy is: 20 yen
<em>Hence, the cost of the Japanese toy in dollars is: $ 4.</em>
