Answer:
Jeanette is the friend walking at the same rate as Caroline. This is because Jeanette also takes 1/5 of an hour to walk a mile.
Step-by-step explanation:
Note: This question is not complete. The complete question is therefore provided before answering the question as follows:
It takes Caroline 1/5 of an hour to walk a mile. Four of Caroline's friends time themselves on their own walk of different lengths. Which friend is walking at the same rate as Caroline? If:
David walked 1/2 a mile in 2/5 an hour
Jeanette walked 1/2 a mile in a 1/10 an hour
Kay walked 1/5 a mile 1/2 a hour
Mark walked 1/3 a mile in 3/5 an hour
The explanation of the answer is now given as follows:
To determine which friend is walking at the same rate as Caroline, we first convert their rate to number hours it takes to walk a mile as follows:
a. David walked 1/2 a mile in 2/5 an hour
This implies that:
(1 / 2) * 2 = 2/2 = 1 mile
(2 / 5) * 2 = 4/5 of an hour
Therefore, David takes 4/5 of an hour to walk a mile.
b. Jeanette walked 1/2 a mile in a 1/10 an hour
This implies that:
(1 / 2) * 2 = 2/2 = 1 mile
(1 / 10) * 2 = 2 / 10 = 1/5 of an hour
Therefore, Jeanette takes 1/5 of an hour to walk a mile.
c. Kay walked 1/5 a mile 1/2 a hour
This implies that:
(1 / 5) * 5 = 5/5 = 1 mile
(1 / 2) * 5 = 5 / 2 = 2.5 hours
Therefore, Kay takes 2.5 hours to walk a mile.
d. Mark walked 1/3 a mile in 3/5 an hour
This implies that:
(1 / 3) * 3 = 3/3 = 1 mile
(3 / 5) * 3 = (3 * 3) / 5 = 9 / 5 = 1.8 hours
Therefore, Kay takes 1.8 hours to walk a mile.
Conclusion.
Based on the calculations above, only Jeanette is walking at the same rate as Caroline. This is because Jeanette also takes 1/5 of an hour to walk a mile.
Tony drove for 2 hours at a constant rate of 65 mph. It started to rain, so he slowed his rate to a constant 50 mph for 3 hours. When the rain stopped, Tony finished the trip driving at a constant rate of 60 mph for the final hour. How far did Tony travel? A. 175 mi. B. 240 mi. C. 275 mi. D. 340 mi.
Answer:
B. 240mi.
Step-by-step explanation:
Answer:
D. 340
Step-by-step explanation:
Proof: I put all the constants together to equal 340.
(not much proof but believe me)
Round to the nearest ten thousand.
923,079
2. If Sheila paid $1600 in interest on a year loan of $6,400 for her first car, 25 points
what was the interest rate? [R = 1 + (PT)]
Help please it’s due today
Answer:
25% annual interest rate
Step-by-step explanation:
$1600 ÷ $6400 = 0.25 aka 25%
48 pens are packed in four boxes how many pens are packed in nine boxes
Answer:
108 pens
Step-by-step explanation:
48/4=x/9
4x=432
x=108
Answer:
Since there are 12 pens packed in each box, because there are 48 packed in 4 boxes, there will be ( 12 times 9 ) 108 pens in 9 boxes.
Walter takes 950 milligrams of an antibiotic. Every hour, his body breaks down 25% of the
drug. How much will be left after 4 hours?
Answer: 0
Step-by-step explanation: 950 x .25 = 237.5 x 4(4 hours) =950
Answer:
0
Step-by-step explanation:
I just took the test
f(x) = 7|x| awnser the question for some points
Are these two lines parallel? Why or why not?
y=5x+6 and y=6x+5
Answer:
No
Step-by-step explanation:
The slopes of the equations are unequal, meaning the lines are not parallel and will eventually intercept
-5/7 divided by -1/3
Leave your answer in fractional form.
Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2)
Step-by-step explanation:
invert the second fraction and multiply
-5/7 * -3/1 = 15/7 = 2 1/7
how do you graph y=2/3 x-4 on a coordinated graph
0= 2/3x-4
0=2x -12
-2x-12
×=6
Solve for x
And pls help
Answer:
6 is the correct answer jt tje
At a competition 24 of the 40 members of a middle school band won a middle. What percentage of the of the band won a middle?
Answer:
60%
Step-by-step explanation: 24/40 equals .6. Multiply .6 by 100 to get your percentage, which equals 60%. hope this helps
Suppose an object is dropped from the top of a building into a pool of water at ground level. There is a splash 6.8 seconds after the object is dropped. How high is the building in feet?
Answer:
739.8 ft
Step-by-step explanation:
Find the distance from (2,7) to (-10,2)
find the perimeter and area of a square whose side measures
1)3point5 (3.5)
2)1m 20cm
I hope it helps you ❤️❤️❤️❤️
Step-by-step explanation:
perimeter:3.5+3.5+20+20=47cm
Area:L×b=3.5×20=70cm
please help and show work
Step-by-step explanation:
1x 6.5 = 6.5
6.5 x 25 = 162.5 miles
plz help me asap I just need to know the equation also it can be A) or C)
Answer:
C) Y=15X
Step-by-step explanation:
Y is the total donations and x is each free throw, every free throw, $15 is donated. For a it is saying no matter if there is a free throw or not $15 dollars is donated and b is saying the free throws depend on the total amount multiple by 15 which doesn't make sense
Answer:
the answer is not a
Step-by-step explanation:
A bag contains 5 blue marbles and 6 yellow marbles. A marble is drawn and dropped back into the bag. Another marble is drawn and dropped back into the bag. What is the probability that both marbles drawn were blue?
Answer:
7/13
Step-by-step explanation:
Evaluate the expression below when x=3 and y=-5. x^2+4xy SHOW YOUR WORK
-54
-51
69
1
Answer:6
Step-by-step explanation:
-4xy
-4(1/2)(-3)
-4(-1.5)
6
What is the y-intercept of the line graphed on the graph?
Answer:
y intercept is -5
Step-by-step explanation:
Answer:
it is -5 :)
Step-by-step explanation:
the y intercept is -5, you can easily see its -5 because thats where it crosses the y axis. good luck, hope this helped!!
1. A large game cube with a three inch side
length is wrapped with shrink wrap. How many
square inches of shrink wrap will be used to
wrap ten game cubes?
A. 450 in2
B. 540 in2
C. 270 in2
D. 720 in

Answer:
a
Step-by-step explanation:
Can you explain how you go the answer too
Answer:
Step-by-step explanation:
Bridget is a sales person. She sold a microwave for $70 and earned 5%commission. How much commission did Bridget earn?
Solve the simultaneous equations
4x + 2y = 23
3x - 2y = 5
Answer:
x = 4
Step-by-step explanation:
the explanation is given in the picture...
I need help with these math problems, i’m not really good at math. i’m gonna be asking more questions cause i really need help with this work.
Answer:
that's an isosceles triangle
Answer:
15x+6x+4x+1+5-1=180
25x +5=180
25x=180-5
25x=175
x=175/25
x-7
Step-by-step explanation:
The price of a shirt was originally $14.54, but the price has been reduced by 31%. What is the price of the shirt after the discount?
A) $10.03
B) $4.51
C) $45.54
D) $14.23
Answer:
A
Step-by-step explanation:
(31/100)×14.54
= $4.51
S.P= O.P-D.P
= (14.54-4.51)$
= $10.03
The vertex is at (-1,-3) move it to (8,10) on the coordinate grid.
PLZ HELP, 4/5 * 2/3. exsplain how you got it too. i just need an exsplaination. step by step.
Answer:
8/15
Step-by-step explanation:
4x2=8
5x3=15
Answer:
8/15
Step-by-step explanation:
First you multiply 4 by 2 and 5 by 3
4*2 = 8
5*3 = 15
Finally you have your answer!
8/15
A butterfly is flying 8 3/4 feet above the ground. It descends at a steady rate to a spot 6 1/4 feet above the ground in 1 2/3 minutes. What is the butterfly’s change in elevation each minute?
Answer:
Step-by-step explanation:
6¼ ft - 8¾ ft = -2½ ft
(-2½ ft)/(1⅔ min) = (5/2 ft)/(5/3 min)
= (5/2)/(5/3) ft/min
= (5/2 × 3/5 ft)/min
= 1.5 ft /min
The required change in elevation of butterfly is 1.5 ft\min.
Given that,
A butterfly is flying [tex]8\frac{3}{4}[/tex] feet above the ground.
It descends at a steady rate to a spot [tex]6 \frac{1}{4}[/tex] feet above the ground in [tex]1\dfrac{2}{3}[/tex] minutes.
We have to determine,
The butterfly’s change in elevation each minute.
According to the question,
Change in elevation = butterfly flying above ground - it descends at a steady rate to a spot above the ground ,
[tex]= 8\dfrac{3}{4} - 6\dfrac{1}{4}\\\\= \dfrac{35}{4} - \dfrac{25}{4}\\\\= \dfrac{10}{4}\\\\= \dfrac{5}{2}\\\\= 2.5 feet[/tex]
Then,
To find Change in elevation per minute,
[tex]= T = 1\dfrac{2}{3} = \dfrac{5}3}[/tex]
Therefore,
Change in elevation per minute,
[tex]= \dfrac{2.5}{\frac{5}{3}} = 2.5 \times \dfrac{3}{5} = 1.5 \ ft \ per\ minute[/tex]
Hence, The required change in elevation of butterfly is 1.5 ft\min.
To know more about Division click the link given below.
https://brainly.com/question/7719375
The slope of a line that passes through points (5, 14) and (-4, y) is 4/9. What is the value of y?
Answer:
slope=m=4/9
(x',y')=(5,14)
(x",y")=(-4,y)
we have
m=(y"-y')/(x"-x')
4/9=(-4-5)/(y-14)
4y-56=-81
4y=-81+56
y=-25/4
Answer: y = 10
Step-by-step explanation:
The slope of a line is the rise/run, so if you want to find the slope of a line between two points, you can take the change in y between the two points and divide it by the change in x.
The change in y would be (y2 - y1), where y2 is the y position of the second point and y1 is the y position of the first.
In a similar manner, to find the change in x, we can use (x2 - x1), where x2 is the x position of the second point and x1 is the x position of the first.
Now that we have the change in x and the change in y, we can make an equation to find the slope (which is change in y / change in x):
m = (y2 - y1) / (x2 - x1)
Now we can assign the points:
Point 1 is (5, 14)
Point 2 is (-4, y)
(Note: You could flip which point is which, and it wouldn't change the final answer, I'm just assigning these so you know where the x and y values are coming from when I plug the values into the equation)
Now that we have both points, we can plug the values into the equation:
m = (y2 - y1) / (x2 - x1)
m = (y - 14) / (-4 - 5)
m = (y - 14) / (-9)
There's one piece of information we haven't used yet, which will help us solve for the value of y. What we need to use is the slope (which is given to us as 4/9).
Plugging in the value of the slope will let us get y:
m = (y - 14) / (-9)
4/9 = (y - 14) / (-9)
-4 = (y - 14)
(Note: We're multiplying both sides by -9, don't forget about the negative sign)
-4 = y - 14
y = -4 + 14
y = 10
There were 70 concert tickets sold for $550. Each adult ticket cost $9 and each child's ticket cost $5. Find the number of adult tickets and the number of child tickets sold.
Let a = # of adult tickets sold
Let c = # of child tickets sold
Equation #1 (Quantity of Tickets Sold)
___ + ___ = 70
Equation #2 (Value of Tickets Sold)
___ + ____ = $550
Solve the system of linear equations with any method.
# of adult tickets sold: ____
# of child tickets sold: ____
Answer:
a= 50 c=20 50+20=70 450+100
Step-by-step explanation:
good luck on tes t man