Answer:
D
Step-by-step explanation:
A is an arithmetic sequence in that is adds or subtracts the same amount.
B is also an arithmetic is that it takes the original 1000 and adds another 1000 for each year
C is a geometric sequence because it's losing 5× however many questions missed
D is the answer because it says it loses 10% every year, so it loses 10% of the previous year, not the beginning year.
Answer: 15) 97
16) 16
17) 24
Step-by-step explanation:
15) (x-75) + (x-52)+ 293=360
x - 75 + x - 52 + 293 = 360
2x - 127 + 293 = 360
2x + 166 = 360
2x = 194 [Subtract 166 from both side]
x = 97 [Divide by 2 from both side]
16) (4x+15)+(5+6x)=180 The angle of a straight line is 180.
4x + 15 + 5 + 6x = 180
10x + 20 = 180
10x = 160 [Subtract 20 from both side]
x = 16 [Divide by 10 from both side]
17) (x+17)+(2x+1)= 90 These two angle combined equal to 90.
x + 17 + 2x + 1 = 90
3x + 18 = 90
3x = 72 [Subtract 18 from both side]
x = 24 [Divide by 3 from both side]
You can use a online calculator it really helps
2 1/2 gallons of paint.
If 1/2 gallon covers 1/5 of the wall, multiply 1/2 gallon by 5 to find how much is needed to cover 5/5, or the entire wall. You get 5/2. Now, simplify. 5/2 = 2 1/2 gallons of paint.
Answer:
We will graph the inequality in simplified form i.e
The graph is shown in figure below
Step-by-step explanation:
Which is the graph of the linear inequality
(Note: Considering the inequality is 2y>-6 and x is typing mistake.)
First we will solve the inequality to find value of y
We have inequality:
For finding y we have to divide both sides of inequality by 2
Now, we will graph the inequality in simplified form i.e
Inequality can be graphed on number line as well as graph paper.
Graph on number line
Since y is greater than -3, so all values greater than -3 will be included on the number line. An open circle will be drawn on -3, indicating -3 is not included but values greater than -3 are included. The figure A shows the graph
Graph on Graph paper
Since y is greater than -3, so all values greater than -3 will be included on the number line. A dotted line will appear on -3 and the region on right side of -3 (values greater than 3) will be shaded. The figure B shows the graph