Answer:
33.33% decrease
Step-by-step explanation:
Answer:
50% decrease or -0.5
Step-by-step explanation:
How many cyclists are at least 26 years old?
Answer:
15
Step-by-step explanation:
What is the equivalent form of (x-2)2 -5x +3?
Answer: -3x-1
Step-by-step explanation: 2x-4-5x+3 collect the terms
-3x-4+3
answer -3x-1
GIVING 25 POINTS PLEASE ANSWER
Fix the error in the algebraic expression to the translation below.
One less than twice a number translates to x² - 1
Answer:
2x - 1
Step-by-step explanation:
The length of a rectangle is 4 less than three times the width. The area of the rectangle is given by the formula A = l × w. Which of the following equations could be used to find the area?
Question 19 options:
A)
A = 4w2 – 3w
B)
A = w2 – 4w
C)
A = 3w2 – 4w
D)
A = 3w2 – w
Answer:
C) A = [tex]3w^{2} - 4w[/tex]
Step-by-step explanation:
First, read through what the question is asking.
Now, read it again, but slowly and take in everything it is saying (Don't read into it too slowly, or else you will over-complicate the problem and get frustrated - told from experience :) )
Alright, 4 less than 3 times the width. So, lets rearrange this and give width a variable (w).
So, the length is equal to:
l = 3w - 4
and the width is equal to:
w = w
The area of a rectangle is A = l * w
Let's plug in the values.
A = (3w - 4) * w
Now, simplify:
A = [tex]3w^{2} - 4w[/tex]
A = [tex]3w^{2} - 4w[/tex] is your final answer.
I hope this helps!
Divide 1/4÷2/3 and express the answer in the simplest terms. If necessary, use / for the fraction bar.
1/4 ÷ 2/3 =
Answer:
3/8
Step-by-step explanation:
find the Least Common Denominator, change the numerators as needed, divide, then simplify.
Answer:
the answer is 3/8
Step-by-step explanation:
brainiest rate 5 stars and thank mee : )
Supposed y varies directly as x and y =21 when x=3
Taliyah drives 120 miles in 3 hours. At the same rate, how far will she drive in 5 hours?
Answer:
200 Miles
Step-by-step explanation:
120 miles divided by 3 hours = 40 miles
40 miles x 5 hours = 200 miles
a triangular park ABC has side 100cm, 60cm and 80cm. A gardener has to put a fence all around it and also plant grass inside. how much area does she need to plant? find the cost of fencing it with barbed wire at the rate of Rs 50 per meter leaving a space 5m wide for a gate on one side.
Answer:
Area.
Using Heron's formula to calculate the area, first calculate the semi-perimeter;
= (100 + 60 + 80) / 2
= 120 m
Area = [tex]\sqrt{120 * (120 - 100)(120 - 60)(120 - 80)}[/tex]
= [tex]\sqrt{5,760,000}[/tex]
= 2,400 m²
Cost of fencing.
Perimeter = 100 + 60 + 80 = 240m
Less space for gate = 240 - 5 = 235m
Cost = 235 * Rs 50 per meter
= Rs 11,750
The different units used in your question would lead to an incomprehensible answer so I used meteres for all.
The ground temperature at an airport is 16 °C. The temperature decreases by 5.4 °C for every increase of 1 kilometer above the ground. What is the temperature outside a plane flying at an altitude of 5 kilometers?
Answer:
-11
Step-by-step explanation:
If its -26 degree in Canada and 34 degrees in Australia what is the difference in temperature
Answer:
It would be 60 degrees
Step-by-step explanation:
You take the numbers and write the equation 34-(-26) to figure out the difference. You then change the signs, making it 34+26, as before you were subtracting a negative. If you complete that problem, you come to the conclusion of 60.
Write an equation for a graph that passes through the points
(10,6) and (5,3).
Answer:
10x + 6y and 5x + 3y
Step-by-step explanation:
I might not be 100% correct but take this into consideration.
The perimeter of a rectangle is less than 10 inches. The length is x and the width is x − 5. If the solution is x < 5, then the length is less than 5. Is this a viable solution?
Answer: it is a non viable solution
If the length is less than 5 then the width (x - 5) will be less than zero. A rectangle with no width does not exist so this solution is non-viable.
Answer:
non-viable
Step-by-step explanation:
1/2 of a number reduced by six times the same number algebraic expression
Answer:
0/2
Step-by-step explanation:
Just subtract it by 1/0
Please help me solve for angle B!!
I believe it is 50 degrees
Explanation:
180-115 = 65 degrees
Since the base angles of of an isosceles triangle are equal,
Angle C =angle A= 65 degrees
65 times 2 = 130
180-130=50
50 degrees=measure of angle B
Hope this helps
Which graph represents the inequality y < -1 + 2x?
Answer:
The graph is attached down
Step-by-step explanation:
The form of the linear inequality is y < b + m x, where
m is the slope of the lineb is the y-intercept, the point of intersection between the line and the y-axis (0, b)The solution of the inequality is the area under the lineTo find which graph represents the inequality y < -1 + 2x
→ Find the y-intercept (the value of y at x = 0)
∴ b = -1
∴ The y-intercept is (0, -1)
From the given graphs we have two graphs that the line intersected the y-axis at (0, -1)
2nd graph in the 1st row
2nd graph in the 2nd row
∵ The sign of inequality is <
∴ The shaded area must be under the line
∴ The 2nd graph in the 1st row is our answer
The graph which represents the inequality y < -1 + 2x is attached down
A public health department wants to determine the rate that parents of teen boys are choosing to vaccinate their sons for HPV within the state of Indiana. They conduct a survey of 64 randomly selected families of teen boys.They found that 12% of families had chosen to vaccinate. Which of the following is true?A. The 95% confidence interval is 12% ± the margin of error*standard deviationB. The confidence interval should not be calculated due to the small sample sizeC. A 99% confidence interval will be smaller than the 90% confidence intervalD. The central limit theorem applies to proportions only when the population standard deviation is known
Answer:
The correct option is B
Step-by-step explanation:
From the question we are told that
The sample size is [tex]n = 64[/tex]
The proportion that choose to vaccinate the teen boys is [tex]\r p = 0.12[/tex]
considering the first statement
The 95% confidence interval is 12% ± the margin of error*standard deviation is false because
The 95% confidence interval is is %12 ± the margin of error
considering the second statement
The confidence interval should not be calculated due to the small sample size is true because from the central limit theorem
np = 64 * 0.12 = 7.68
and this value is less than 10 hence the confidence interval should not be calculated
considering the third statement
A 99% confidence interval will be smaller than the 90% confidence interval is false
This is because as the confidence level increase (for example from 90% to 99%) the margin of error increase which increases the confidence interval
10. You just received your first job. Your starting salary is $750
weekly. Calculate your monthly and annual salary.
Answer:
3000 weekly
39000 annually
Step-by-step explanation:
Answer:
39,000 dollars
A school janitor has mopped 1/3 of the classroom in five minutes at what rate is he mopping
Answer:
1/15 per min
Step-by-step explanation:
3 times 5 equals 15
Put the 15 on the bottom of the fraction and then put the 1 on top of the fraction, there you go.
To which set or sets of numbers does the number 5 belong?
Answer:
what are the options
Step-by-step explanation:
i would help but I don't know what to answer
y = -2x+ 7 has this type of slope
A.positive
B.negative
C.Zero
D.undefined
Answer:
B: Negative
Step-by-step explanation:
-2/1 is the slope which is negative.
Determine the mean, median, mode, and midrange for this collection of class test scores: 88 82 97 76 79 92 65 84 79 90 75 82 78 77 93 88 95 73 69 89 93 78 60 95 88 72 80 94 88 74 a. Mean is 84, median is 82, mode is 82, midrange is 77 b. Mean is 82, median is 88, mode is 88, midrange is 77 c. Mean is 82.4, median is 88, mode is 82, midrange is 78.5 d. Mean is 82.4, median is 82, mode is 88, midrange is 78.5
Mean of a given set of data = Sum of all observations ÷ Total number of observations
Mean of this data set = 88 + 82 + 97 + 76 + 79 + 92 + 65 + 84 + 79 + 90 + 75 + 82 + 78 + 77 + 93 + 88 + 95 + 73 + 69 89 + 93 + 78 + 60 + 95 + 88 + 72 + 80 + 94 + 88 + 74
Mean = 2729 ÷ 30
Mean = 82.4Median = the middle observation in a given set of data
Median of these test scores = 60 , 65 , 69 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 78 , 79 , 79 , 80 , 82 , 82 , 84 , 88 , 88 , 88 , 88 , 89 , 90 , 92 , 93 , 93 , 94 , 95 , 95 , 97 .
Median = 82 + 82 / 2
= 164 ÷ 2
= 82
Median = 82Mode = most frequently occurring number in a given set of data .
Mode of these test scores =
= 60 = 1 time
= 65 = 1 time
= 69 = 1 time
= 72 = 1 time
= 73 = 1 time
= 74 = 1 time
= 75 = 1 time
= 76 = 1 time
= 77 = 1 time
= 78 = 2 times
= 79 = 2 times
= 80 = 1 time
= 82 = 2 times
= 84 = 1 time
= 88 = 4 times
= 89 = 1 time
= 90 = 1 time
= 92 = 1 time
= 93 = 2 times
= 94 = 1 time
= 95 = 2 times
= 97 = 1 time
Mode = 88Midrange = average of the largest and smallest number in a given set of data
Midrange of these test scores = 97 + 60 / 2
= 97 + 60 / 2
= 157 ÷ 2
= 78.5
Midrange = 78.5Therefore , the correct option is :-
(d) Mean is 82.4 , median is 82 , mode is 88 , midrange is 78.5Which is greater, 9 x 10^-2 or 3 x 10^-4? How many times greater is the number you chose than the other number? Explain your reasoning.
Answer:
The solution to 9x10^-2 is 0.09 or (3/10)^2. The solution to 3x10^-4 is 0.0003 or 3/10000. Based on that, 9x10^-2 fits into 3x10^-4 three-hundred (300) times.
0.25k + 1.5 - k - 3.5
Select all the true statements
Answer:
option no (C) is correct
Step-by-step explanation:
A game store sold 206 games last week for $26 each the store owner had a sales goal of $5,000 for the week how much did the store owner actually earn
Answer:
5356$
Step-by-step explanation:
206*26=5356
Is 500% of less than 10, greater than 10 but less than 100, or greater than 100?
Answer: less
Step-by-step explanation:
If 100% of 10 is 10, we multiply 10 by 5 to get 500%.
10 x 5 = 50
500% of 10 will be equal to the number 50.
The answer is less.
The amount of food that there will be at the fiesta
The number of students who attend the fiesta
Identify the independent variable and dependent variable.
I think the independent variable is the number of the students who attend the fiesta and the dependent variable is the amount of food there will be at the fiesta
If boxes of chocolates contain chocolates in total, calculate how many chocolates boxes of chocolates will contain
Write a number in the blank that makes this number sentence true.
43 + 29 = ___ + 60
Answer:
12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
After going trick-or-treating, Jeremy is trying to
figure out how many houses he visited. Jeremy knows
he started with 9 pieces of candy in his bag and
averaged 2 candies per house. If Jeremy has 71
pieces of candy, how many houses did he visit?
