Mariah swam her leg of the race in 24.98 seconds and Janet swam her leg of the relay race in 25.874 seconds. What was their combined time for their part of the relay?
A. 0.894 seconds
B. 28.372 seconds
C. 50.844 seconds
D. 50.854 seconds
Answers
Answer:
D 50. 854 would be the correct answer
Related Questions
Find x and y. pls help
Answers
Answer:
y = 21
x = 8
Step-by-step explanation:
AB = 180
27 + 3y = 90°
-27 -27
-----------------------
3y = 63
÷3 ÷3
--------------
y = 21
x + 27 + 3y + 8x + 18 = 180
9x + 45 + 3(21) = 180
9x + 45 + 63 = 180
9x + 108 = 180
-108 -108
-----------------------
9x = 72
÷9 ÷9
----------------
x = 8
I hope this helps!
X = 8
We can figure out Y by finding the right angle. A right angle is 90 degrees so we start out with:
90-27
Then,
63/3
21.
Do the same for X to get 8
WILL GIVE 50 POINTS!
Choose the graph that represents the following system of inequalities: y ≥ −3x + 1 y ≤ 1 over 2x + 3 In each graph, the area for f(x) is shaded and labeled A, the area for g(x) is shaded and labeled B, and the area where they have shading in common is labeled AB. Graph of two intersecting lines. Both lines are solid. One line f of x passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line g of x passes through points 0, 1 and 1, negative 2 and is shaded above the line. Graph of two lines intersecting lines. Both lines are solid. One line g of x passes through points negative 2, 2 and 0, 3 and is shaded below the line. The other line f of x passes through points 0, 1 and 1, negative 2 and is shaded above the line. Graph of two intersecting lines. Both lines are solid. One line passes g of x through points negative 2, 2 and 0, 3 and is shaded below the line. The other line f of x passes through points 0, 1 and 1, negative 2 and is shaded below the line. Graph of two intersecting lines. Both lines are solid. One line f of x passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line f of x passes through points 0, 1 and 1, negative 2 and is shaded below the line.
Answers
Answer:
Step-by-step explanation:
3x – 2y = 24
x + 2y = 48
what would x and y equal?
Answers
Answer: x= 8+\(\frac{2y}{3}\)
y=24-\(\frac{x^{2} }{2}\)
Answer:
x=18
y=15
Step-by-step explanation:
I will first make x+2y=48 into when "x" is by itself on one side:
x=48-2y
Then I will plug x=48-2y into 3x-2y=24:
3(48-2y)-2y=24 and solve until you get the solution for "y"
144-6y-2y=24
144-8y=24
-8y=-120
y=15
Then I go back and plug "y" into x+2y=48 to get the solution for "x"
x+2(15)=48
x+30=48
x=18
There you go!
x=18 and y=15
what's the difference between a function and not a function
Answers
I hope it helps......:))
What number is 40% of 86? Show your work.
21.5
344
34.4
215
Answers
To solve this problem you multiply 86 by 100 and then divide the total by 40 as follows: (86 x 100) / 40
Answer:
What is 40% of 86? Show your work.
= (40*86)/100
= 3440/100 = 34.4
C. 34.4Step-by-step explanation:
You're welcome.
Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?
Answers
According to Keira, if 6 tickets are sold, there should be 2 tickets left. However, we don't have any information about the initial number of tickets available.
If the total number of tickets initially was 8, and 6 tickets were sold, then there would indeed be 2 tickets left, supporting Keira's statement.
However, if the total number of tickets initially was less than 8, or if the statement doesn't specify the initial number of tickets, we cannot determine if Keira's statement is correct.
Therefore, without additional information, we cannot determine the accuracy of Keira's statement.
(Proportional Relationships MC)
The table shows a proportional relationship.
Workout (hours) 1 2 3
Calories Burned 240 480 720
Create a description in words for the table.
A The number of calories burned is dependent on the number of hours working out. For a one-hour workout, there are 240 calories burned, and for a two-hour workout, there are 480 calories burned.
B The number of calories burned is dependent on the number of hours working out. For every 240-hour workout, there is 1 calorie burned, and for every 480-hour workout, there are 2 calories burned.
C The number of hours working out is dependent on the number of calories burned. For a one-hour workout, there are 240 calories burned, and for a two-hour workout, there are 480 calories burned.
D The number of hours working out is dependent on the number of calories burned. For every 240-hour workout, there is 1 calorie burned, and for every 480-hour workout, there are 2 calories burned.
Answers
the constant is 240. for every hour, the person burns 240 calories.
hope this helped :-)
A bakery is selling 3.20 for 6 muffins. How much for a dozen?
PLEASE HELP!!!!
Answers
Answer:
Step-by-step explanation:
6.40 im not sure but i think
Celeste studied 1.25 hours for her Math test. This was 0.5 hour less than she studied for her Science test. Use the following equation to find out how long she studied for her Science test.
Let h = hours studied
h – 0.5 = 1.25
Answers
Answer:
1.75 - 0.5 = 1.25
Step-by-step explanation:
Answer:
1.75 - 0.5 = 1.25
Step-by-step explanation:
A Rover driving on the moon’s surface travels at a speed of 60 ft/min. How far will it travel in 90 min?
Answers
Answer:
d =5400 ft
Step-by-step explanation:
d = rt
where d is distance r is rate and t is time
d = 60 ft/ min * 90 min
d =5400 ft
Answer:
5400ft
Step-by-step explanation:
If you are travelling 60ft/min or 60 feet in one minute, you can multiply by 90 minutes to find the number of feet you will travel in that time.
60ft/min * 90min = 5400ft
If they want an approximate mileage, it is just above 1 mile. (1.022727miles)
DUE TODAY!! LINEAR FUNCTIONS
What is an equation for the linear function whose graph contains the points (−1,−2) and a slope of 3?
Enter your answers in the boxes.
y+ ? = ? (x+1)
Answers
Answer:
The point-slope form of the equation of a line is given by y - y1 = m(x - x1), where (x1, y1) is a point on the line and m is the slope of the line. In this case, we have a point (-1,-2) and a slope of 3. Substituting these values into the equation, we get:
y - (-2) = 3(x - (-1))
Simplifying this equation, we get:
y + 2 = 3(x + 1)
So, the equation for the linear function whose graph contains the point (-1,-2) and has a slope of 3 is y + 2 = 3(x + 1).
Y + 2 = 3( X + 1 )
Explanation:
The equation is
Y - Y1 = M(X - X1)
Y1 is the y value:
The y value for the point (-1,-2) is -2 so we can plug that in
Y - (-2) = M( X - X1 )
If you subtract a negative you are adding so:
Y + 2 = M( X - X1 )
X1 stands for X
The X value for (-1,-2) is -1 same as the last one it will be positive because if you subtract a negative you are adding it:
Y + 2 = M( X + 1 )
Finally we plug in M
M is the slope and slope = 3 so plug 3 in
Y + 2 = 3( X + 1 )
Answer is Y + 2 = 3( X + 1 )
.Help
I need help with these questions, I got confused
Answers
Answer:
Step-by-step explanation
*1: the hundred thousand place
*2: The hundredths place
*3: The thousands place
*4: The thousands place
*5: The hundred thousand place
*6: The digit is 9
*7: The ten's place.
*8: The One's place
9* The ten's place
PLZ help me and plz show your work
Answers
Step-by-step explanation:
x=10y y=1
5(10x1) - 7(1) = 43
50 - 7 = 43
Help plssssssss
Answers:
9/6 = 11.25/LM
9/6 = LM/7.5
6/9 = LM/4.5
6/9 = 4.5/LM
(It's also multichoice so choose 2 answers.)
Answers
Explenation: you need the number to know what to multiply 4.5 by
Please help me solve these
Answers
Answer:
my bad none of them are similar only number 4 is the similar one sry
Step-by-step explanation:
2.9/3= 3 (So 3 is the scale factor for that side) if divide 15&9 by 3 they get 5&3 which is the original sides of the triangle.
3.As half of 24=12. 12 plus 24 =36
Half of 28= 14. 14 plus 28= 42
With the information we’ve got they are similar
*100 POINTS** 7th grade geometry pls help
Answers
Answer:
Height = 10 cm
Step-by-step explanation:
The volume of a pyramid can be found using the following formula:
\(\boxed{\large \textsf{$V=\frac{1}{3}Ah$}} \large \textsf{ where:}\\\\ \normalsize \textsf{$\bullet{\,V = $ volume of pyramid$}$}\\ \normalsize \textsf{$\bullet{\,A = $ base area$}$}\\ \normalsize \textsf{$\bullet{\,h = $ perpendicular height$}$}\)
Note: in the question, it states that base area = 12 cm³, however, this is an error (typo), and the area is 12 cm², since area is only in 2 dimensions. length and width, whilst volume is in 3 dimensions. length, width, and height.
Now, we can plug in our data into the formula:
\(\large \textsf{$40=\frac{1}{3}12h$}\\\\ \large \textsf{$40=4h$}\\\\\boxed{\boxed{\large \textsf{$\therefore h = 10$ cm}}}\\\)
This is the graph of f(x) = x+A/x+B. The grid lines in the graph are one unit apart. What is the value of A/B
Answers
The value of A/B is given as follows:
A/B = -2.
What are the asymptotes of a function f(x)?The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.The horizontal asymptote is the value of f(x) as x goes to infinity, as long as this value is different of infinity.From the graph, the function has a vertical asymptote at x = 1, hence the value of B is given as follows:
B = -1 -> as x + B = 0 -> x = -B = -1.
When x = 0, y = -2, hence the value of A is obtained as follows:
A/-1 = -2
A = 2.
Then the division is given as follows:
A/B = 2/-1 = -2.
More can be learned about the asymptotes of a function at https://brainly.com/question/1851758
#SPJ1
Last quarter, 84 seventh grade students made honor roll. If there are 400 students in the seventh grade, what percent made honor roll?
Answers
Answer:
21%
Step-by-step explanation:
Formula for this type of problem is
\(\frac{84}{400} = \frac{x}{100}\)
cross multiply
\(8400 = 400x\)
divide by 400
\(8400 = 400x\)
/400 /400
\(21 = x\\\)
plug 21 into the original equation
\(\frac{84}{400} = \frac{21}{100}\)
simplify
\(\frac{84}{100} = .21\)
.21 can be represented as 21%
-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)
Answers
Answer:
Option #4
Step-by-step explanation:
Expand option #4
=-3(1-2x)
=-3 -2x*-3
=-3+6x which is what your original equation was.
1) 35 is what percent of 700?________
2) What is 25% of 36? _______
3) Ted’s car is now worth $9000, which is 60% of what he paid for it. What did he pay for his car? ___
Answers
2 is 9
3 is 5400
2 is 60%
3 is 5400%
How can you use successive approximations to help you find the answer to
y = 19x - 45
y = -6x + 8
Answers
There are about 2.2 pounds in one kilogram. If Allison's bag weighs
19.54 pounds, about how many kilograms does it weigh? Did you multiply
or divide to find your answer?
a. 8.88, divide c. 8.88, multiply
b. 39.08, multiply d. 39.08, divide
Answers
Answer:
8.88
Step-by-step explanation:
...
Free 5 points, Option 1 or Option 2
I need help deciding something
Answers
Solve the equation w - ( -6) = 17 for w.
A. w = -11
B. w = 11
C. w = -23
D. w = 23
Answers
Answer:
B
Step-by-step explanation:
Double negatives are POSITIVE!
Always add the opposite when you see double negatives:
w-(-6) can also be written as w+6
Therefore
w+6=17
-6 -6
w=11
I need help on this math
Answers
Answer:
y = 2... Maybe
Step-by-step explanation:
both 7,2 and 2,12 have to in them but I am not that smart when it comes to explaining
Answer:
y = -2x + 16
Step-by-step explanation:
\(Slope:\frac{y^{2}-y^{1} }{x^{2}-x^{1} }=\frac{12-2}{2-7}=\frac{10}{-5}=-2\)
\(y-intercept:y-y_{1}=m(x-x_{1} ) \\y-2=-2(x-7)\\y-2=-2x+14\\\)
Add 2 to both sides;
y = -2x + 16
PLEASE HURRY IM TIMED, The perimeter of a rectangular swimming pool is 70 yards. Its length is 25 yards. Which of the following can be used to find the width?
A.
width = (70 yd + 50 yd) ÷ 4
B.
width = (70 yd − 50 yd) ÷ 4
C.
width = (70 yd − 50 yd) ÷ 2
D.
width = (70 yd + 50 yd) ÷ 2
Answers
I thik the option C should be used.
Answer:
C
Step-by-step explanation:
There are 2 sides for length- 25+25=50
70-50=20. Divide that by 2 sides, 10 yards for width
Please help,i really dont understand
Answers
Answer: 1,100ft2
Step-by-step explanation:
Look at the photo
A. Find the smallest positive integer m such that C^m(9) = 1
B. Find all n such that C^3(n) = 16
Answers
Answer:
Step-by-step explanation:
ressions.
There are a few boxes with 12 red pens in each and a few boxes with 10 blue pens in each. If 10 red pens and 5 blue pens are removed, the total number of pens that remains is given by the expression (12x − 10) + (10y − 5). Here, x represents the number of boxes containing red pens and y represents the number of boxes containing blue pens.
In your own words, describe how to estimate a product of a multiplication expression using compatible numbers. Use the example of 2.35 x 21.02 in your answer.
Answers
Answer: to find a reasonable answer you can estimate to help. You could do 2 x 21 to get a general idea of what the actual product will be.
Step-by-step explanation:
2 x 21 = 42
2.35 x 21.02 = 49.397
they are pretty close so we know that they are both reasonable.
2.35x21.02=49397
The circumference of a circular park is approximately 18 feet. What is the approximate area inside the circular park?
Answers
Answer:
25.685 square feet.
Step-by-step explanation:
Circumference = 2 * π * radius
From this, we can derive the formula for the radius:
radius = Circumference / (2 * π)
Let's substitute the value of the circumference and calculate the approximate radius:
radius = 18 / (2 * π)
radius ≈ 18 / (2 * 3.14159)
radius ≈ 2.865 feet
Now that we have the approximate radius, we can calculate the area:
Area ≈ π * radius²
Area ≈ 3.14159 * (2.865)²
Area ≈ 3.14159 * 8.193225
Area ≈ 25.685 square feet
Therefore, the approximate area inside the circular park is approximately 25.685 square feet.
C = 2πr
where C is the circumference and r is the radius of the circle.
In this case, we are given that the circumference is approximately 18 feet, so we can set up the following equation:
18 = 2πr
Solving for r, we get:
r = 9/π ≈ 2.864 feet
Now we can use the formula for the area of a circle:
A = πr^2
Substituting the value we found for r, we get:
A = π(2.864 ft)^2 ≈ 25.85 ft^2
Therefore, the approximate area inside the circular park is approximately 25.85 square feet.