Answer:
2k+10
Step-by-step explanation:
Good luck!
John's car gets 25.3 miles per gallon. How many
miles can he drive on 11.7 gallons of gas?
Answer:
Multiply 25.3 by 11.7, to get the answer of 296.01
Luis and Raul are riding their bicycles to the beach from their respective homes. Luis proposes that they leave their respective homes at the same time and plan to arrive at the beach at the same time. The diagram shows Luis's position at two points during his ride to the beach. Write an equation in slope-intercept form to represent Luis's ride from his house to the beach. If Raul lives 5 miles closer to the beach than Luis, at what speed must Raul ride for the plan to work?
If x represents the time in hours since the ride began and y represents the remaining distance from the beach, then the equation
_____
represents Luis's ride from his house to the beach.
Answer:
equation: y=-7.5x+15 and Raul must ride at a speed of 5 mi/hr
Step-by-step explanation:
[tex]\frac{y2-y1}{x2-x1}[/tex] to find out the slope. [tex]\frac{6-11.25}{1.2-0.5}[/tex]=[tex]\frac{-5.25}{0.7} = -7.5[/tex]
Then you fill x and y to find out the y intercept
[tex]11.25=-7.5*0.5+b[/tex]
[tex]11.25=-3.75+b\\11.25+3.75=15\\[/tex]
Y intercept= 15
then you put it in the equation:
y=-7.5x+15
Since Raul lives 5 miles closer and Luis is 5 miles away, he needs to go at 5 miles an hour to get to the spot.
That is 5 miles/hour
The distance and time, as presented in this question are illustrations of linear equations.
The linear equation is: [tex]y = -7.5x + 15[/tex]He must plan to ride at 4.5 miles per hour, if he lives 5 miles closerFrom the diagram, we have:
[tex](x_1,y_1) = (0.5,11.25)[/tex]
[tex](x_2,y_2) = (1.2,6)[/tex]
Start by calculating the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]
So, we have:
[tex]m = \frac{6 - 11.25}{1.2 - 0.5}[/tex]
[tex]m = \frac{-5.25}{0.7}[/tex]
[tex]m = -7.5[/tex]
The equation is then calculated using:
[tex]y = m(x - x_1) + y_1[/tex]
This gives
[tex]y = -7.5(x - 0.5) + 11.25[/tex]
[tex]y = -7.5x + 3.75 + 11.25[/tex]
[tex]y = -7.5x + 15[/tex]
Calculate distance, when [tex]x = 5[/tex]
We have:
[tex]y = -7.5 \times 5 + 15[/tex]
[tex]y = -22.5[/tex]
The speed (s) is then calculated as:
[tex]s = \frac{22.5}{5}[/tex]
[tex]s = 4.5[/tex]
Hence, he must plan to ride at 4.5 miles per hour
Read more about linear equations at:
https://brainly.com/question/11897796
PLEASE HELP!!! I WILL GIVE BRAINLIEST!! HURRY PLEASE!!
You have 4 1/4 yards of ribbon to tie the goodie bags. You will need 1/8 of
a yard for each goodie bag. Will you have enough ribbon to tie a
goodie bag for each persn at the party? Explain!
24 people.
Answer:
Yes, you will have enough ribbon
Step-by-step explanation:
16/4 divided by 1/8
32 people will get ribbon
Answer:
Yes you have enough
Step-by-step explanation:Multiply 1/4 times 2 that is 2/8, Already 2 people done.22 people are left and 4 whole yards of ribbon are left too, for every yard of ribbon you have right now its 8 people so , 4 times 8 is 32.So you have enough.
Taiga’s teacher asked him to draw a polygon with vertices (–4, –5), (–5, 2), (–5, 3), (–4, 5), (2, 3), and (–3, 0) and to identify the polygon. Taiga drew the polygon below and identified it as a heptagon. On a coordinate plane, points are at (negative 4, negative 5), (negative 5, 2), (negative 5, 3), (negative 4, 5), (2, 3), and (negative 3, 0). Which explains whether Taiga is correct? Taiga is correct because the polygon has six sides. Taiga is correct because the sides have different lengths. Taiga is not correct because the polygon is a hexagon. Taiga is not correct because he drew the polygon incorrectly.
Answer:
C
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
How many hours are in 17 years? Write your answer in scientific notations with 3 sig figs.
Sig figs are: are the number of digits in a value, often a measurement, that contributes to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit. Calculate the number of significant figures for an assortment of numbers.
Answer:
1.49 x [tex]10^{5}[/tex] hours
Step-by-step explanation:
1 day=24hours
1 year=365 days
365days=24 x 365=8760hours
17 years
= 8760hours x 17
=148920hours
=1.4892 x [tex]10^{5}[/tex]
= 1.49 x [tex]10^{5}[/tex] hours
Answer:
1.49 x hours
Step-by-step explanation:
1 day=24hours
1 year=365 days
365days=24 x 365=8760hours
17 years
= 8760hours x 17
=148920hours
=1.4892 x
= 1.49 x hours
0
What is the value of 12?
Answer:
1
Step-by-step explanation:
[remember: any number raised to the power of 0 is 1]
∴ 12^0 = 1
hope it helps you!!
Solve each equation!
Answer:
y = 6j = 1,000True (both sides are equal)False (sides of equation are not equal)I hope this helps!
Refer to the data set of 20 randomly selected presidents given below. Treat the data as a sample and find the proportion of presidents who were taller than their opponents. Use that result to construct a 95% confidence interval estimate of the population percentage. Based on the result, does it appear that greater height is an advantage for presidential candidates? Why or why not?
Complete Question
The data for this question is shown on the first uploaded image
Answer:
The 95% confidence interval estimate of the population percentage is
[tex] 33.2\% < p < 76.8 \% [/tex]
Step-by-step explanation:
On the data the first value is the height of the president while the other value is the height of his opponent
The sample size is n = 20
Looking at the data we see that out of the 20 presidents that only 11 is taller than their opponent
So the proportion of presidents that are taller than their opponents is
[tex]\^ p = \frac{11}{20}[/tex]
=> [tex]\^ p = 0.55[/tex]
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p) }{n}} [/tex]
[tex]E = 1.96 * \sqrt{\frac{0.55 (1- 0.55) }{20}} [/tex]
[tex]E = 0.218[/tex]
Generally 95% confidence interval is mathematically represented as
[tex]\r p -E < p < \r p +E[/tex]
=> [tex]0.55-0.218 < p < 0.55+ 0.218 [/tex]
=> [tex]0.332 < p < 0.768 [/tex]
Converting to percentage
[tex](0.332*100)\% < p < (0.768 *100) \% [/tex]
=> [tex] 33.2\% < p < 76.8 \% [/tex]
what are the intercepts of 3x -4y=-24
Answer:
desmos
Step-by-step explanation:
look up desmos. its a grphing calculator and it gives u all the awnsers. welcome bro
Answer:
Y - intercept is -4
X - intercept is 3
x, and y are both variables that stand for the intercepts in the equation, if that makes sense.
Hope that helps and have a great day!
Factor the following x^2+3x-108
Answer:3(6+x)(6-x)
Step-by-step explanation:
Used a math app
PICTURE PROVIDED JUST TELL ME IF IT IS A FUNCTION AND WHY
Answer:
This is a function because the Y values do not repeat.
Raina, Chang, and Alonzo sent a total of 94 text messages during the weekend. Alonzo sent 3 times as many messages as Chang. Raina sent 9 more messages than Chang. How many messages did they each send
Answer:
Chang sent 17 messages, Alonzo sent 51 and Raina sent 26.
Step-by-step explanation:
You turn the word problem into an algebraic expression and solve
whats between 3.07 and 3.083
Answer: 3.765
Step-by-step explanation:
What’s the answer for this 3x+6x-4
Answer:
9x-4
Step-by-step explanation:
Add 3x and 6x hope it help
Answer:
9x - 4
Step-by-step explanation:
3x + 6x - 4
First, combine like terms, so you would add 3x and 6x together to form 9x
9x - 4
Because you cannot simplify this equation any more, that is the answer
I hope this helps :)
Which of the following is an example of a
set of like terms?
a. {197, 19,y}
b. {18x, -X, 21x}
c. {15, 20, 25y}
d. {-2x, -2y, -2xy)
When I solve (1 + 5n^4 + n^2) + (8n^4 - 4 - n^2), is the answer -3 + 13n^4 + n^2 or just -3 + 13n^4
Answer:
Just -3 + 13n^4
Step-by-step explanation:
Please help it's urgent!
Solve for r: S = 4pier^2
Answer: i cant type it but take the images- hope that helps
Step-by-step explanation:
what is the expression -3(4k-8) simplified
Answer:
-12k + 24
Step-by-step explanation:
-3 × -8 = 24
-3 × 4k = -12k
how many centimeters are in 4.8 inches?
[1 inch = 2.5 cm]
a. 12 cm
b. 11 cm
c. 7.30 cm
d. 1.92 cm
Answer:
A.
Step-by-step explanation:
Answer:
a.12
Step-by-step explanation:
4.8x2.5=12
In the figure below, Triangle A has been rotated about the origin. Which Triangle shows a 90 degree counterclockwise rotation?
Answer:
B
Step-by-step explanation:
75 is what percent of 150?
If you show work you will be marked brainliest
50%
You need to convert the fraction (ratio)
Afterwards, you will get your answer!
I don't know how to upload or I would upload a picture of my work and how to do it to help you.
I hope this helps you!
Answer:
50percent
Step-by-step explanation:
75 is half of 150
Can someone please tell me the answer to this problem?
2/9b=1/3b-7
Answer:
b=63
Step-by-step explanation:
2/9b=1/3b-7
sub 1/3 from each side
-1/9b=-7
them multiply both sides by -9/7
this one's a little tough u think ya'll can help me
Answer:
I'd like to say half because it's being divided by 2
Step-by-step explanation:
I hope this helps
Convert 8/25 to a percent
Answer:
32%
Step-by-step explanation:
Answer:
32%
Step-by-step explanation:
All you have to do is divide the numerator by the denominator and then multiply that result with 100
======================================================================
When you enter 8/25 into the above formula, you get (8/25)*100 which calculates to:
32%
LESSON 5: Rational Numbers LEARNING TASK # 2 Score__________ Name:Joseph Sebastian Usi Section:7-Callalily Direction: Perform the indicated operations. 1.34+914=____221_____________ 2. 16+34=______45___________ 3. 46+418=_________220________ 4. 45-615=2 ________________ 5. 25-36=_________________ 6. 37 x 45=_________________ 7. 58x (-53)=_________________ 8. 3425=_________________ 9. 910÷(-45)=_________________ 10. 367 x 225=_________________
Answer:
1. 221+ 727
2. 45+5
3. 220+ 244
4. 2( -285)
5. (-9)
6. 1665 (multiplying)
7. -3074 (multiplying)
8. 685 *5
9. - 20 2/9
10. 82575 (multiplying)
Step-by-step explanation:
1.34+914=____221_____________
948 = 221+ 727 (subtracting 221 from 948)
2. 16+34=______45___________
50= 45+5 ( adding 5 to 45 to get 50)
3. 46+418=_________220________
464= 220+ 244 ( subtracting 220 from 464)
4. 45-615=2 ________________
- 570 = 2( -285) (dividing -570 by 2)
5. 25-36=_________________ (-9)
-9 = -9 ( subtraction)
6. 37 x 45=_________________ 1665 (multiplying)
7. 58x (-53)=_________________ -3074 (multiplying)
8. 3425=_________________ 685 *5 (dividing by 5)
9. 910÷(-45)=_________________ 182/ (-9) (dividing both by 5)
= - 20 2/9
10. 367 x 225=_________________ 82575 (multiplying)
Help me on this... :..............................)
Answer:
b
Step-by-step explanation:
plz let me know if this was wrong... hope this helps
YALLL PLZZZZ HELPPPP ANYBODYYYYY I DONT GET THIS
Answer:
121
Step-by-step explanation:
74+47=121
180-121=59
59+x=180
x=121
if there are 8 boys and 48 girls in a room, fill out all of the possible ratios of boys to girls that could be made. i already have 1 boy for every 6 girls
Take these points but pls answer my other question:
https://brainly.com/question/18304671
or go to my acc and my questions.
Answer:
Thank U
Step-by-step explanation:
Answer:
thx
Step-by-step explanation:
set a= {7,4, x, 8, 10, 5, 2}
if the median of set A is also its average, then what is one possible value of x?
a. 4
b. 6
c. 10
d. 16