Express the set of numbers shown on the number line
Answers
Given:
The graph of a number line.
To find:
The set of values for the given number line.
Solution:
As we move from right to left on a number line the values decreased however as we move from left to right on a number line the values increased.
From the given number line it is clear that there is an open circle at 7 and a close circle at 10. It means 7 is not included in the solution set but 10 is included in the solution set.
From the point 7, the arrow approaching to the left it means all the values less than 7 are included in the solution set, i.e., x < 7.
From the point 10, the arrow approaching to the right it means all the values greater than 10 or equal to 10 are included in the solution set, i.e., x ≥ 10.
Solution set : x < 7 or x ≥ 10.
Therefore, the correct option is A.
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Approximately 9 out of 10 smokers began smoking before the age of 21. In a group of 400 smokers, about how many of them started before they reached their 21st birthday?
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Which of the following are point-slope equations of the line going through (-5, 6) and (1, 1)? Check all that apply.
A phone company uses the equation y=0.15x+10 to find y the monthly charge for a customer sending x text messages. How many text messages are sent if the monthly charge is $77.50?
Answers
4.35A+5.40B=780.95
Substitute 3B into A for the second equation:
4.35(3B)+5.40B=780.90
13.05B+5.40B=780.90
18.45B=780.90
B=42.33
Plug into equation 1:
A=3B
A=3(42.33)
A=126.98
Answers
Answer:
144
Step-by-step explanation:
5x + 4x = 7x + 32
9x = 7x + 32
2x = 32
x = 16
7(16) + 32 = 144
I think this is correct
pls mark brainliest if good
Answers
Answers
Answer:
120 inches of strands
Step-by-step explanation:
finding the diagonal
=
= 26 inches
perimeter of the window = 2(10+24)
= 68 inches
total strands needed to be purchased = [(2×26)+68] inches
= 120 inches of strands
Answers
a) The slope of the model is 15.
b) The y-intercept of the model is 25.
c) p = 15w + 25, where p is puppets and w is weeks
d) After seven weeks, there would be 130 puppets available for sale.
e) It would take Gepetto 13 weeks to fulfill an order for 220 puppets.
What is the slope of your model?
The slope of the model shows how quickly the number of puppets for sale changes over time. In this situation, Gepetto makes 15 new puppets every week, so the slope is 15.
The y-intercept of the model shows how many puppets Gepetto already has in storage at the beginning. In this situation, he has made 25 puppets that are fully done, so the starting point on the graph is at 25.
The equation in slope-intercept form included the slope and the starting point on the y-axis.
Read more about slope of the model here:
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Answer:
a) 15
b) 25
c) p = 15w + 25, where p is puppets and w is weeks
Step-by-step explanation:
a) Gepetto makes 15 puppets a week, so as the weeks increase by 1, puppets increases by 15, making the slope 15
b) Gepetto started out with 25 puppets. This means that when x = 0 (0 weeks), there will be 25 puppets already
c) The slope and y-intercept were incorporated into an equation in slope-intercept form.
Answers
Answer:
9
Step-by-step explanation:
In order to round to the nearest ten you must think: what is the nearest multiple of 10. For example, to round 68 to the nearest 10, the nearest whole number is 70, so the answer would be 70. However if you were to round 63 to the nearest 10, to would be 50 since that is the nearest multiple of 10
Answer:9
Step-by-step explanation:
Since the next number is below five you don’t round up it just stays the same