If Dorie devotes the same number of hours to studying for these three classes each week, what is the total number of hours Kathleen will study over a three week period?
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Answer:
The answer is 17.2 hours
Step-by-step explanation: Because first you add all hours together (which is 86/15) then multiple it by 3 (week) which is 86/5 = 17.2 hours
Related Questions
Select the slope-intercept form of an equation for a line with y-intercept =−5and slope =2.
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Answer:
Y= -5x+2
I plugged all of the equations in to a coordinate plane
i need some help again
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A = small box of oranges
B = large box of oranges
3A + 14B = 203
11A + 11B = 220
Take the second equation and divide it by 11 as both A and B have the same coefficient, which will equal:
[tex]\frac{11A+11B}{11}[/tex] = A + B
220 will also have to be divided by 11, giving you 20
A + B = 20
You can cancel out 3A in the first equation by subtracting 3A + 3B = 60 from it.
11B = 143
143/11 = 13
B (large box of oranges) costs $13.
Substitute 13 for B back into one of our equations, in this case 3A + 3B = 60
3A + 3*13 = 60
3A + 39 = 60
3A = 21
A = 7
Thus:
A small box of oranges costs $7, and a large box of oranges costs $13.
Hope this helped! (please brainliest)
PLEASE HELP
Identify which equations have one solution, infinitely many solutions, or no solution.
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See the image below, hope it helps!
Car A is traveling east at a steady speed of 40 miles per hour. After 2 hours, it
is 95 miles east of Johnstown.
Car B is traveling east on the same road. Its distance east of Johnstown is
represented by the graph.
Miles east of Johnstown
200
180
150
140
120
100
30
GO
40
20
Time (hours)
Where were the two cars in relation to each other when they began traveling?
A. Car A was 5 miles east of car B.
B. Car B was 5 miles east of car A
C. Car A was 15 miles east of car B.
D. Car B was 20 miles east of car A.
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It is because..
The minute hand on a clock is 15cm long. what area does it pass over in 1 hour (pls show working)
Answers
Answer:
the 12 on the clock
Step-by-step explanation:
Answer:
94.2cm in 1 hour.
Step-by-step explanation:
In 1 hour, minute hand completes one round means makes a circle.
Radius of the circle(r)=15cm
Circumference of circular clock=2πr
=2×3.14×15=94.2cm
Therefore, the tip of the minute hand moves 94.2cm in 1 hour.
Jake is wrapping a gift that is in a box with the following dimensions.
Length: 12 inches
Width: 4 inches
Height: 8 inches
Havana is wrapping a gift whose box's dimensions are all twice the length of the lengths in Jake's box.
How many times larger is the surface area of Havana's box than Jake's box?
Enter your answer as a number, like this: 42
HELP PLEASEEEEEEEE
Answers
Answer: 8
Step-by-step explanation: first multiply 12x4x8 for jakes gift. that is 384
then make each of the dimensions twice as large. so havanas dimensions would be. 24x8x16
24x8x16=3,072
last divide 3,072 by 384 and the answer would be 8
Havana's box is 8 times larger.
Which of the following is an example of a proportional equation?
y=x+1
y=−1.4x
None of the above
y=3x^2−4
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Explanation:
y=k•x is the formula for a constant of proportionality
moreeeeee hellllllpppppppppplz:D
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Answer:
I think it is by multiplying by 2.
Step-by-step explanation:
Even if it depends on the x, the constant of proportionality just goes by the multiple of 2 as you can see on the graph.
For example, the point that's on ( 2, y) on the graph is the start of it's proportional relationship that is on the line. Here is an example of how it is proportional:
hope it helps in a way:)
Answer:
X and Y have the same constant of proportionality. When X is 4 then Y is 4 as you can see on your picture you attached.
Anthony is building a cube-shaped box to store some of his smaller crafting supplies. The formula for the surface area of a cube is SA=6s2, where s is the side length of the cube. If he has a total of 200 in.2 of cardboard, can Anthony build a box where s=6 in.?
No, he needs 16 in.2 more cardboard.
No, he needs 232 in.2 more cardboard.
Yes, he will have 56 in.2 of cardboard left over.
Yes, he will have 128 in.2 of cardboard left over
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Answer:
No, he needs 16 inches^2 more cardboard.
Step-by-step explanation:
Take the formula and substitute values into it. 6 * 6^2
Do the exponent first to get 6 * 36, and then complete that to get 216. Since he has 200 inches of cardboard and he would need 216, that means he would need 16 more square inches to make his cube.
Find x in the following (it’s not allrealnumbers, 0, no solutions by the way, i checked)
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It takes a car 2.5 h to go from mile marker 15 to mile marker 130. What is the average speed of the car?
40 points
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Answer:
your answer is 46
Step-by-step explanation:
so you take 115 and divide it by 2.5
ΔABC is an isosceles triangle with AB = AC, D is the midpoint of BC and
AD is joined. Prove that ΔABD ≅ ΔACD.
I kinda have a problem with triangles and congruency....little help please ?
Answers
Step-by-step explanation:
Okay, so the triangle would look something like this:
see the image attached
Since AB=AC, which is given; <ABD = <ACD, because they are the angles opposite from the congruent sides of the isosceles triangle; and <ADB=<ADC, as AD is the bisector*; ΔABD ≅ ΔACD using SAA/AAS (side-angle-angle) congruencey.
*If the bisector of an angle in a triangle meets the opposite side at its midpoint, then the triangle is isosceles, and vice versa
(I haven't done Geometry in a while so I hope that's correct :) )
Put the following Points on a plane.
A(3,1/2) B(-3/2,-7/4) C(7/5,9/2)
I will give brainliest to whoever answers first
Answers
Answer:
A (3, 1/2) B (-3/2, -7/4) C (7/5, 9/2)
Just a helpful tip for next time you need to graph something, you can look up "Graph Generator" and click on one of the first couple links and then you can put in your points. It makes it easier on the brain to be able to see and understand an accurate, and clean graph with the points on it.
Nine cyclists were each asked the distance in miles they biked last week.
Their responses are given below.
Complete the grouped frequency distribution for the data.
In the distribution, the frequency of a class is the number of distances in that class.
(Note that we are using a class width of 6.)
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The frequency for 2 to 7 is 3
The frequency for 8 to 13 is 4
The frequency for 14 to 19 is 2
The grouped frequency distribution for the data with the given intervals is 3, 4 and 2 respectively.
Given that, nine cyclists were each asked the distance in miles they biked last week. The distance travelled by 9 cyclists is 16, 8, 2, 6, 8, 11, 9, 15 and 7.
We need to complete the grouped frequency distribution for the data.
What is the grouped frequency distribution?In this type, the data is arranged and separated into groups called class intervals. The frequency of data belonging to each class interval is noted in a frequency distribution table. The grouped frequency table shows the distribution of frequencies in class intervals.
Now, the frequency distribution for the given intervals is as follows:
That is, for intervals 2 to 7 the frequency is 3.
For intervals 8 to 13 the frequency is 4.
For intervals 14 to 19 the frequency is 2.
Therefore, the grouped frequency distribution for the data with the given intervals is 3, 4 and 2 respectively.
To learn more about the grouped frequency distribution visit:
https://brainly.com/question/4679134.
#SPJ2
PLEASE HELP ILL GIVE BRAINLY (THIS IS TIMED!)
Answers
Answer: 16
Step-by-step explanation:
(50 - (2x9)) / 2 = 16
Answer:
5.5 in ?
Step-by-step explanation:
What’s the answer and how do i find slope?
Answers
You can find the slope by putting the two ordered pairs into the formula: y2-y1/x2-x1.
y2 is the second y, being 8 in your case.
x2 is the second x. Being -2 in your case.
y1 is the first y, being -6 in your case.
x1 is the first x. Being 0 in your case.
After plugging in these numbers you will get 8- -6/-2-0. This will get you 14/-2. which will equal -7, the slope.
I can explain more if you want.
Hope this helped!! :)
Answer:
the answer should be -7
Step-by-step explanation:
you find slope by using the formula y2-y1/x2-x1
You want to buy a new winter coat that originally costs $115. The coat was marked down to $86.25 so you bought it. What percent was the coat discounted by?
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Find the range of allowable values based on the given information. Round to the nearest tenth.
44 can vary by 4.2%
Enter the correct answers in the boxes.
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Answer:
24×3.5%=0.84 so round to nearest tenth is 0.9.
Step-by-step explanation:
Use the given data to find the best predicted value of the response variable.
The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is Ten pairs of data were used to obtain the equation. The same data yield r = 0.863 and
What is the best predicted job performance rating for a person whose attitude rating is 77? Use α = 0.05
88.9
12.6
80.1
90.2
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Just makes sense
Answer:
80.1
Step-by-step explanation:
Please help! NO LINKS! (Scientific Notation)
** Only if you know the answer
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It is 8 times 10 to the 4th power.
Please answer pronto!
Which expression has a value of 48?
A) (4+5) ･3²-9÷3²
B) 4+5 ･(3²-9) ÷3²
C) 4+5 ･3² (-9÷3²)
D) 4+5 ･3² -9÷3²
(This question was already asked and answered but they said the answer was wrong on didn’t give the right answer)
Answers
Step-by-step explanation:
D)4+5×3^2-9÷3^2
=4+5×9-9÷9
=4+5×9-1
=4+45-1
=49-1
=48
In your own words, explain to me what is absolute value? . Make sure to talk about the definition of it, how you find it, and how it's different from just plotting an integer on a number line. You must provide 3 sentences or more.
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Answer:
Absolute Value Is Pretty Simple Actually In Middle School Math. Absolute Value Refers To The Numerical Difference From 0 To The Integer. To Find Absolute Value All We Have To Do Is Find The Difference From 0 To The Number. For Example -9 The Absolute Value Is 9 Because On A Numberline There Are 9 Spaces Between 0 and -9 and +6 Is 6.
(This Is How We Learned It In Middle School There Is A Higher Level To This Tho)
Please help! 10 POINTS 5 for answering, 5 if gotten brainliest.
Thanks!
Helpful!!
Answers
Answer:
what do you need help with... there is no question.
Step-by-step explanation:
Answer:
Step-by-step explanation:
plz help wit this ASAP! cuz im gonna fail math!
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Answer:
ill put them below
Step-by-step explanation:
1: -4/4
2: 2/6 or 1/3
3: -35/6
4: 4/21
5: -21/8
Answer:
in order they are
Step-by-step explanation:
1: -4/4
2: 2/6
3: -35/6
4: 4/21
5: -21/8
Please help I cant do this
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Answer:
Step-by-step explanation:
stop drawing and pay atention and mabe you will get it
can someone help me wit this?
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Answer for number 2 is: -1
Answer for number 3 is: -35/6 or in decimal form, -5.83
Fill anwer! 10 Points. 5 for answering 5 or 3 for brainliest
thank you!
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Keep in mind 90% = 0.9
To get his answer write out the expression like this: .90 * x = 27
Then rewrite it to find “x”:
x = 27/0.90
X = 30
Fill in the next two terms in the pattern. Enter your answers in the boxes.
0.16, 0.35, 0.54,
,
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Answer:
By substracting 0.16 from 0.35, we get 0.19. This is also true when we subtract 0.35 from 0.54. Thus, 0.19 is what we are adding to each previous term to get the next one. When we add 0.19 to 0.54, we get 0.73, and when we add 0.19 to 0.73, we get 0.92. Therefore, the next two terms in the pattern are 0.73 and 0.92.
Step-by-step explanation:
Answer:
0.73 and 0.92
Step-by-step explanation:
The difference of the first 3 is 0.19 per step, so continuing that is 0.73 and then 0.92
heeeeeeeeeeelllllllllllppppppppp me NO LINKS PLEASE, JUST ANSWER IS
Answers
22 dollars for every 3 square yards cost carpet is PROPORTIONAL. mulch PROPORTIONAL. 500 400 graph NOT proportional. the line graph NOT proportional. wood deck NOT enough info. asphalt NOT ENOUGH info.
. Ava makes bead necklaces. She has a total
of 6,048 beads. Each necklace has 24 beads.
Her friend Maria says that the greatest
number of necklaces she can make with the
beads is 162.
Explain why Maria’s answer is incorrect and
how she can find the correct answer.