Answer:
8.4 miles
Step-by-step explanation:
a mph in 45 min.
This means that she did 0.75 of a miles during that time.
When she bikes 4mph slower, she did 0.75a-4 which took her 70 minutes.
Now, V=d/t.
First equation: 0.75a=d/45
Second equation: (0.75a-4)=d/70
First equation: d=33.75a
Second equation: d=52.5a-280
Now, to put it all together: 52.5a-280=33.75a
18.75a=280
a= 14 14/15 mph
1 hour=60 min.
d=(0.75*14 14/15)/60
d=504/60
d=8.4 miles.
:)
Jasmine's grandma's home will be 504 miles away from her home.
What is the relation between distance[x] and time[t]?The relation between distance[x] and time [t] is -
⇒ [x] = v [t]
where v is the velocity of body.
Given that;
Jasmine reached her grandma's house in 45 minutes. When she was biking back home in the evening it was foggy and she went 4 mph slower. The trip back took her 1 hour and 10 minutes.
Now, Let her grandma's home be [x] miles away form her house.
Assume that her velocity was [v] mph on her way to grandma's house.
So, We get;
⇒ 45 = x/v
⇒ x = 45v
And, Her velocity on her way back home would be [v - 4] mph
⇒ 70 = x/(v - 4)
⇒ x = 70(v - 4)
Equating both -
⇒ 45v = 70(v - 4)
⇒ 45v = 70v - 280
⇒ 70v - 45v = 280
⇒ 25v = 280
⇒ v = 11.2 mph
Hence, The value of [x] will be -
⇒ x = 45 x 11.2 = 504 miles
Thus, Jasmine's grandma's home will be 504 miles away from her home.
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Al's Cardboard produces cereal boxes and uses the expression 16x2+56x+24 to determine the volume of each box. The cereal box below was produced by Al's Cardboard and has a width of 8 centimeters (cm). Given that the width of the cereal box is 8 centimeters, which expression could be the dimensions of the length and the height of the box shown?
Answer
madaphuqa
Step-by-step explanation:
wudaphuq
janet earns $16 per week for doing chores around the house. write and solve an equation that determines how many weeks she needs to do chores to earn $12
Answer:
16x = 12 where x is the number of weeks she works, x = 3/4 of a week
Step-by-step explanation:
If Janet gets 16 dollars a week, then 16 times the number of weeks she works is the amount she makes. If x is the number of weeks she works, this would be 16x. Since she is trying to get $12 your equation would be 16x = 12.
Solving,
16x = 12
divide both sides of the equation by 16
x = 12/16 = 3/4
Which one of the following is a true
statement?
Percentage earned at the end of this course
is a one-to-one function of SFU student
number.
SFU student number is a one-to-one function
of percentage earned at the end of this
course.
Percentage earned at the end of this course
is a function of SFU student number, but it is
not one-to-one.
SFU student number is a function of
percentage earned at the end of this course,
but it is not one-to-one.
Answer:
X5, m d5£t4#it8#k,osp5*9y6£, you_, I_, I &, I 5"I 5"6'7'6”7'6'6"6"I 5*95*95*59*I 5,5*5*I 5*I 5•5the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.the area of a trapezium is 240 con 2 97 the parallel side is gucm and 26 cm long Feng
the distance between them.
A police department commissioned a door-to-door survey of citizens on whether they commit minor law infractions, such as speeding or illegal parking. The interviewers told the interviewees that they would not be investigated or ticketed for any minor infractions they may have committed. An analysis suggested that there was bias in their responses.This would likely be an example of a (an):_________
a) Placebo effect
b) Interviewer-induced bias
c) Under-coverage bias
d) Voluntary response bias
e) Double-blind effect
Answer: Interviewer-induced bias
Step-by-step explanation:
The example given in the question illustrates the Interviewer-induced bias. This occurs when the situation created by the interviewer is such that the respondent will have to give the kind f answer that the interviewer wants to hear.
For example, in the question, we can deduce that the interviewers told the interviewees that they won't be investigated and the gave bias replies based on that.
inverse of f(x)7x-21
Can someone help me with this
Answer:
juan
Step-by-step explanation:
juan won causs he got to 4 meters in 13 mins whereas Antonio did it in 15 mins
for the second part just describe how the differences between the line such as Antonio starts off really fast but slows down
juan starts off at a slow pace behind Antonio but gradually catches up and overtakes him as Antonio stops for a rest for 2 mins
Solve this step by step and explain your answer
Answer:
(-3,5)
Step-by-step explanation:
6x+7y=17
-6x+5y=7
2y=10
y=5
6x+5(5)=7
6x+25=7
6x=7-25
6x=-18
x=-3
What is three fourths x three fourths x three fourths?
Answer:
3/4 x 3/4 x 3/4 = 27/64 (twenty-seven / sixty-four)
Answer:
27/64
Step-by-step explanation:
the track team is trying to reduce their time for a relay race. first they reduce by 2.1 minutes. then they are able to reduce the time by 1/10. if their final time is 3.96 minutes, what is their beginning time? show or explain your answer
Answer:
6.27 minutes
Step-by-step explanation:
x = beginning time
x - 2.1 - 0.21 = 3.96 *(1/10 of 2.1 is 0.21)
x - 2.31 = 3.96
x = 6.27
Biologists studying horseshoe crabs want to estimate the percent of crabs in a certain area that are longer than 35 centimeters. The biologists will select a random sample of crabs to measure.
Which of the following is the most appropriate method to use for such an estimate?
A. A one-sample z-interval for a population proportion
B. A one-sample z-interval for a sample proportion
C. A two-sample z-interval for a population proportion
D. A two-sample z-interval for a difference between population proportions
E. A two-sample z-interval for a difference between sample proportions
Answer:
B. A one-sample z-interval for a sample proportion
Step-by-step explanation:
In this experiment we are only given the sample. Neither the population nor the two samples nor difference between two samples is given .
So we are left only with the option B which satisfies the required conditions.
We will estimate the sample proportion and then perform, the test.
The test are performed on the basis of the statistics given.
We have the sample and the proportion that it is not longer than 35 centimeters.
Therefore option B is the correct choice.
B. A one-sample z-interval for a sample proportion
What tip did you leave if your meal cost 27 and you paid a total of 36
Answer:18%
Step-by-step explanation:
Which graph represents (x,y)-pairs that make the equation y=0.5+5 true?
Choice B: (1,0), (3,4), (6,10)
Choice C: (2,6), (4,7), (6,8)
Answer:
Choice C
Step-by-step explanation:
Notice that the equation y = 0.5 x + 5
is a linear equation so the points that are solutions of it must reside on a line. Option A does not show aligned points, so it cannot be a possible answer.
Option B: we look into the given points and notice that just the first one (1, 0) is NOT a solution to the equation because:
y = 0.5 (1) + 5 = 5.5 and not "0"
Option C: This is the correct answer, since all those points satisfy the equation
Point (2, 6) --> y = 0.5 (2) + 5 = 1 + 5 = 6
Point (4, 7) --> y = 0.5 (4) + 5 = 2 + 5 = 7
Point (6, 8) --> y = 0.5 (6) + 5 = 3 + 5 = 8
Urgent!! Math help!!
Answer:
7.21
Step-by-step explanation:
14^2-12^2=52
[tex]\sqrt{52}[/tex]=7.21
Can someone please help me?
Answer:
C
Step-by-step explanation:
Describe and correct the error in writing the phrase as an expression.
Answer:
x-12
Step-by-step explanation:
Goodluck
A weighted coin has a 0.664 probability of landing on heads. If you toss the coin 28 times, what is the probability of getting heads exactly 18 times? (Round your answer to 3 decimal places if necessary.)
Which is the correct solution to the problem 7.2-3.67?
Answer:
3.53 is the answer
Step-by-step explanation:
1. Pia drew a circle with a circumference of C and a diameter of 14 in. Pia knows that, and she wrote the following equation to represent the value of.
(a) There is an error in Pia’s equation. Write an equation to correctly represent the value of. Show your work.
π=14/C
(b) Write an equation and find the circumference of the circle
Please help if you can!!!!!!
Answer:
Perpendicular
someone help me plss
9. 12 edges
Work: 4 horizontal edges on top, 4 horizontal edges on bottom, 4 vertical edges for sides
10. Ten-thousands place
Work: The 8 is highlighted. The order of places is: ten-thousands, thousands, hundreds, tens, ones
11. 10 4/5
Work: 54 ÷ 5 ——> 50÷5 = 10 with 4 left over and put into a fraction of 4/5
12. 3,000
Work: 2 is in the thousands place so you look to the place behind it and there is an 8. If the number behind is 5 through 9 then you round up. 8 is above 5, therefore, you round the 2 up to a 3.
13. 0.45
Work: The pattern is +0.03 so 0.42+0.03=0.45
14. 54 cakes
Work: 6 eggs per 1 cake • 9 cakes = 6•9=54 eggs used
15. 378 desks in the school
Work: 6 rows • 7 desks per row = 42 desks in 1 classroom. 42 desks • 9 classrooms = 378 desks in the whole school
Comparing Absolute Values
A student said that since -9 is less than 4, then |-9| is
less than |4|. Is the student correct? Explain why or why
not.
Answer:
i don not know this. but I think
Step-by-step explanation:
According to NASA, an average of one cataloged piece of space debris has fallen back to Earth each day for the past 50 years. Suppose that there is an 11.5% chance that a piece of debris will fall in Russia during a given week, and a 6.7% chance that a piece of debris will fall in Canada during the same week. Which is the most likely
The figure shows two wires diverging from an intersection point at an angle of 20°. A vertical rod is located a distance x from the intersection point and is moving to the right at speed s. What is the rate of change of the area, dA/dt, formed by the two wires and the rod?
A. dA/dt = (1/2(s)tan20)x
B. dA/dt = (1/2tan20)x
C. dA/dt = ((s)tan20)x
D. dA/dt = (tan20)x
E. dA/dt = (2(s)tan20)x
Answer:
dA/dt = ( (S)tan20°)x
Option C) dA/dt = ((s)tan20)x is the correct Answer
Step-by-step explanation:
Given the data in the question and given figure in the image;
The second image mages a triangle ΔAOB
using SOH CAH TOA
such that;
tan = 0pp/adj
tan20° = AB / AO
tan20° = AB /x
AB = xtan20°
given; dx/dt = S
now, know that the area of a triangle is 1/2base×height
so Area of ΔAOB will be;
A = 1/2 × AO × AB
we substitute in AB = xtan20° and AO = x
A = 1/2 × x × xtan20°
A = 1/2 × x²tan20°
dA/dx = ( 1/2×2xtan20°)
dA/dx = ( xtan20°)
now
dA/dt = dA/dx × dx/dt
we substitute
dA/dt = ( xtan20°) × S
dA/dt = ( (S)tan20°)x
Therefore; Option C) dA/dt = ((s)tan20)x is the correct Answer
45 and 81
what is the GCF of both these numbers?
Answer:
the answer is 9
Step-by-step explanation:
look at all the factors of both numbers, then find the factors that they both have, and then multiply those factors
Which is the graph of f(x) = 2(3)*?
y
Ty
14
14
14
12
12
12
10
10
10
8
(1,9)
8
8
2,8)
6
(1.6)
6
6
4
4
2
2
2
4 -3 -2 -12
1
2
4 -3 -2 -12
1
2
3
4
-54
3
-12
2
4
4
o
14
12
% 2, 12)
10
The graph of [tex]f(x) = 2(3)^x[/tex] has an initial value of 2, and a rate is 3
The equation of the graph is given as:
[tex]f(x) = 2(3)^x[/tex]
The above equation is an exponential function.
An exponential function is represented as:
[tex]f(x) =ab^x[/tex]
Where:
a represents the initial valueb represents the ratex and f(x) are the variablesSo, the initial value of [tex]f(x) = 2(3)^x[/tex] is 2, and the rate is 3
See attachment for the graph of the exponential function
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A bakery ordered 90.4 pounds of flour. The next week, the bakery used 5.31 pounds of the flour baking cakes. How much flour does the bakery have left? sorry if it's hard
Answer:
The relationship shown for the flour and the cost is that of a direct variation because the graph is a straight line, noting that the increase of one variable causes also the increase to the value of the other. The point (1, 0.75) means that every pound of flour costs 0.75 dollar. From the graph given, the bakery will have to pay approximately $30 for 40 pounds of flour.
Step-by-step explanation:
The area of circle Z is 64 t ft?.
What is the value of r?
O r= 4 ft
O r= 8 ft
D
O r= 16 ft
Area
Z
O r= 32 ft
77
Answer:
O r= 32 ft
Step-by-step explanation:
im not sure this is right sorry i tried lol
The solution is, The radius is 8 ft.
What is area ?Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.
here, we have,
we know that,
The area of a circle is given by
A = pi r^2
so, we get,
64 pi = pi r^2
Divide each side by pi
64 pi /pi= pi/pi r^2
64 = r^2
Take the square root of each side
sqrt(64) = sqrt(r^2)
8 = r
Hence, The solution is, The radius is 8 ft.
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Let f(x) = x and g(x) = 7x
Find fg()
Which set of points lies within plane I
A. T and Y
B. X and V
C. X and Y
D. U and V
Answer:
congraft you are the 21 millionth queston on brainly
Step-by-step explanation:
493 times 5 minus 76
Also if any of you watch impractical jokers who is your favorite
Answer:
2389
Joe Gatto
Step-by-step explanation:
493(5-76)
=493(-71)
=-35003
