Answer:
0 ≤ k ≤ 50
Step-by-step explanation:
Here k represents the price of the keyboard ( in dollars ),
Given,
Nita will buy the keyboard,
If the price of the keyboard is under $ 50,
That is,
Also, the price can not be negative,
⇒
Hence, the required inequality is,
<u><em>This would be k < 50.</em></u>
This inequality states that k, the price at which Nita wants to buy the new keyboard, is less than 50 dollars.
x=5
7x - 4y = 23 and x + y = 8
Multiply the second equation by 4
4x + 4y = 32
Add this to the first equation
7x - 4y = 23
------------------------
11x = 55
Divide each side by 11
11x/11 = 55/11
x = 5
pls can you give me the answer I want to be sure
y = 260
locate x = 7 on the x- axis, go vertically up to meet the graph at (7, 260 )
when input is 7 then output y = 260
x/70=0.5/20
x=35/20
x=1.75
Ann will need 1.75 cups of sugar.