Y=mx+b
M is the slope
B is the y intercept
In this case 4 is the slope and -9 is the y intercept
You use the coordinates to plug it into the equation.
Answer:
(a)
(b)
Step-by-step explanation:
<u>Part A</u>
Moving 4 steps left, then moving 9 steps right
When you move left, we indicate with a negative sign while a move right is indicated with a positive sign.
Moving 4 steps left = -4
Moving 9 steps right = +9
Therefore, an expression for the statement is:
<u>Part B</u>
When you lose or owe in word problems, it is usually indicated using a negative sign.
Therefore, the statement Shari lost 2 pencils can be represented with the integer: -2
Since Shari lost 2 pencils on 3 occasions, we simply have:
Answer:
23 dimes, 32 nickels
Step-by-step explanation:
Let <em>n</em> equal the number of nickels and <em>d</em> be the number of dimes. We can use the information given to create a system of equations, as follows:
The total number of coins (the number of nickels plus the number of dimes) is 55, giving us the equation n + d = 55.
The total amount is $3.90. Since each nickel is worth $0.05 and each dime is worth $0.10, we get the equation 0.05n + 0.10d = 3.90.
Multiplying the second equation by 20, we get n + 2d = 78. We can subtract the first equation to get d = 23. Substituting this into the first equation, we get that n = 32.
Therefore, there are 23 dimes and 32 nickels.
Answer:
it is >
Step-by-step explanation:
