Answer:
3rd and 4th one.
Step-by-step explanation:
So we can just do this by simplifying each expression
The expression we are comparing the answers to is:
24
because
(-6) (-4) = 24
So now we just see which ones are equal to 24.
1). -24 (no)
2). -24 (no)
3). 24 (yes)
4). 24 (yes)
N.B. I believe your question is saying that the price of a cup of coffee was $2.40 yesterday, and it rose to $2.65 today. Therefore, I will solve with these prices.
The percent increase is 10.41666666% (The 6 is repeating.).
First, you find the difference, or increase, between the two prices.
New price - Old price = Increase
$2.65 - $2.40 = $0.25
The difference between the two prices is $0.25. To find the percent increase, you want to divide the original price ($2.40) from the increase ($0.25) and multiply by 100.
Increase ÷ Original Price × 100 = % increase
0.25 ÷ 2.40 × 100 = 10.41666666%
The percent increase is 10.41666666% (The 6 is repeating.).
<span>1. When graphing inequalities, a solid line is used for < or >.
Answer -False
2. When graphing inequalities, a dashed line is used for < or > signs.
Answer- True
3. If you were to graph x > 6, the circle would be closed and to the left
Answer- False
4.On a number line, if you were to graph an equation with a less than sign or a great than sign, < or > respectively, you would use an open circle
Answer - True</span>
Answer:
30 feet of chain link and 50 feet of rope
Step-by-step explanation:
Let's call the amount of chain link as x and the amount of rope as y. We can write:
x + y = 80 -- Equation 1
2x + 1.5y = 135 -- Equation 2
2x + 2y = 160 -- Equation 3 (Multiply Equation 1 by 2)
0.5y = 25 (Subtract Equation 2 from Equation 3)
y = 50 (Divide by 2)
x + 50 = 80 (Substitute y = 50 into Equation 1)
x = 30 (Subtract 50)
The cosine of angle y would be equal to the length of the adjacent side over the length of the hypotenuse.
cos(y) =
=