Answers
Answer:
Step-by-step explanation:
1) y = -4x - 15 -----------------------(I)
y = 7x + 7 ------------------------(II)
Substitute y = 7x + 7 in equation (I)
7x + 7 = -4x - 15 {Subtract 7 from both sides}}
7x + 7 - 7 = -4x - 15 -7
7x = -4x - 22 {Add 4x to both sides}
7x + 4x = -4x + 4x - 22
11x = -22
x = -22/11
x = -2
Plugin x = -2 in equation (I)
y = -4 * (-2) - 15
= 8 - 15
y = -7
Related Questions
Each students in grade four was given 20 raffle tickets to sell to raise funds for their school. The price of each ticket is $1.50. If Olivia sold all her tickets how much money did she raise for her school? If there are 30 students in grade four and they sold all of their tickets how much money was raised altogether?
Answers
Ashley wants to buy a new pair of boots. The original price of the boots is 180 dollars.
The store is offering a 30 percent discount. How much will Ashley pay for the boots?
Answers
To get this you must take 180 and multiply it by 30 percent (0.3). You should get 54. Next do 180-54= 126
A space shuttle took off and reached an altitude of 8,700 miles in 30 minutes. How many miles per minute, on average, did the space shuttle climb? Show your work.
Answers
Jabari wants to save $66. He earns
$9 every week, walking his
neighbor's dog for 2 hours. He
saves all of his money. How many
weeks will it take him to save $66?
Answers
Answer:
n = 7 1/3 weeks
Step-by-step explanation:
Amount Jabari wants to save = $66
Amount he earns per week = $9
Hours worked per week = 2 hours
How many weeks will it take him to save $66?
Let
n = number of weeks will it take him to save $66
66 = 9n
n = 66/9
n = 7 3/9
n = 7 1/3 weeks
Or
n = 7.33 weeks
alexa's friends got her a skydiving lesson for her birthday.
Answers
Answer:
ok and what's the question? （*゜ー゜*）
Step-by-step explanation:
Help meeeeeeeeeeeee please please
Answers
Answer:
Step-by-step explanation:
2 is the y-intercept and the slope is one
Christopher has a part-time job that pays $2,900 for the year. During the year 24% is taken out for Federal Taxes. At the end of the year when taxes are calculated, Christopher discovers that only 18% needed to be paid in taxes. How much of a refund will Christopher receive?
asap plssssssssssssssssss
Answers
Answer:
$164 refund
Step-by-step explanation:
2900 x .24= $686 withheld
2900 x .18= $522 actually owed
686-522= $164
Alana transformed Figure 1 to Figure 2 as shown below. Which statement accurately describes Alana's transformation?
A
Figure 2 is the image of Figure 1 after a rotation, a reflection, and a translation.
B
Figure 1 and Figure 2 are similar.
C
Figure 2 is congruent to Figure 1.
D
Figure 2 is congruent to a dilation of Figure 1 with a scale factor of 3.
Answers
Answer:
Figure 1 and Figure 2 are similar
Step-by-step explanation:
Answer: A
Step-by-step explanation: Figure 2 is the image of Figure 1 after a rotation, a reflection, and a translation.
I need help please!
Answers
Answer:
720 miles
Step-by-step explanation:
on the table you can see that it takes 1 hour to drive 60 miles. every hour you drive 60 more miles. so, 60mi x 12h = 720mi
i hope this helps :)
A small plane is flying northeast at a speed of 200 mph. A wind blows due west at 28 mph. Find the resultant speed and direction of the plane.
Answers
Answer:
The resultant speed = 181.3 mph
The final direction = 38.7° northeast.
Step-by-step explanation:
We need to find the component in the x-direction and in the y-direction of the speed:
For the plane:
[tex] v_{p_{x}} = 200cos(45) = 141.42 [/tex]
[tex] v_{p_{y}} = 200sin(45) = 141.42 [/tex]
For the wind we have:
[tex] v_{w_{x}} = -28 [/tex]
[tex] v_{w_{y}} = 0 [/tex]
Now, the total speed in the x-direction and in the y-direction is:
[tex] V_{x} = v_{p_{x}} + v_{w_{x}} = 141.42 - 28 = 113.42 [/tex]
[tex] V_{y} = v_{p_{y}} + v_{w_{y}} = 141.42 [/tex]
Hence, the resultant speed is:
[tex] V = \sqrt{V_{x}^{2} + V_{y}^{2}} = \sqrt{(113.42)^{2} + (141.42)^{2}} = 181.3 mph [/tex]
Finally, the direction of the plane is:
[tex] tan(\theta) = \frac{V_{y}}{V_{x}} = \frac{141.42}{113.42} = 1.25 [/tex]
[tex] \theta = 51.3 ^{\circ} [/tex]
[tex] \theta = 90 - 51.3 = 38.7 ^{\circ} [/tex]
The plane is moving at 38.7° northeast.
I hope it helps you!
To the nearest millimeter, a cell phone is 105 mm long and 69 mm wide What is the ratio of the width to the length?
Answers
Answer:
69
Step-by-step explanation:
Please look at the photo and answer the question
Answers
Answer:
D
Step-by-step explanation:
1T=2000lb
9000lb= 4.5T
Answer:
it is d my friend
Yesterday, Tran charged 70$ to babysit for 5 hours. If Tram charges a constant fee per hour when she babysits, which statements are correct
A. Tram charges $140 when she babysits 10 hours.
B. Tram charges $1.25 when she babysits for 9 hours.
C. Tram charges $56 when she babysits for 8 hours
D. Tram charges 20$ when she babysits for 4 hours.
E. Tram charges $14 per hour that she babysits.
D. Tram charges 7$ per hour that she babysits.
Answers
A) Tran charges $140 when she babysits 10 hours
E) Tran charges $14 per hour that she babysits.
reasoning:
$70 divided by 5 hours to get how much she gets paid by the hour. 70 divided by 5 = $14; she charges $14/ hour. $14 times 10 hours = $140. these two statements are correct.
Answer:
A & E
Step-by-step explanation:
divide 70 by 5.
you get 14. meaning she charges $14 per hour
14 x 10 gives you 140.
25 points I need help will mark brainliest
Answers
Answer:
w=840/24Step-by-step explanation:
pls mark me as brainlist
Answer:
you can mark them brainliest, now c:
Step-by-step explanation:
An escalator in a department store carries people a vertical distance of 14 feet between floors. How
long is the escalator if it makes an angle of 30° with the ground?
Feet : ____
Answers
40
feet long
Hope this helps!!!
A store pork sold at 7.26 for 2 pounds and chicken sold at 6.65 for 5 pounds , which has a higher unit price
Answers
Answer:
the pork has a greater unit rate of $3.63
Step-by-step explanation:
You divide each number so that you denominator is one because it is a unit rate.
I need help with this question
Answers
Find the percentage of change, your baby sisyer grows from 29 inches to 49. Round to the nearest tenth
Answers
I NEED HELP LOOK AT PICTURE PLS!! THX A MILLION !
Answers
Answer:
I think it is 5 lb and 1 oz
y varies directly with x If y = 15 when x = 18, find у when X = 16.
Answers
Answer:
y = 13
Step-by-step explanation:
In 1985 there were 275 cell phone subscribers in the small town of China grove. Subscribers increased by 40% each year after 1985. How many cell phone subscribers were there in 1994?
Answers
1994year -> x cell phones ->100%+360%
40% • (1994-1985)= 40% • 9= 360%
275 cell phone 100%
X cell phones. 100+360%=460%
x=275•460%/100%
x=12420/100
x=1265
99% sure this is a correct answer
x=275 • 460%/100%
x=12,420/100
x=1265
1994-1985= 9 yrs • 40%= 360%
Please help, I WILL MARK YOU BRAINLIEST IF U GET IT RIGHT AND GIVE A THANKS IVE BEEN STUCK ON THIS FOR A WHILE PLEASE :(
Answers
Answer:
y=-1/6x
Step-by-step explanation:
To find the answer you can just look at 2 points on the graph and whichever one comes first is (y1,x1) and the next pair is (y2,x2). So to find it we can use (0,0) automatically because the line is crossing through it. We can also use (600,-100) as the second point becasue it is the next farthest away and when we plug the numbers into the slope equation(y2-y1/x2-x1) we get -100-0/600-0 which when simplified is -100/600 or -1/6 so that would be the m in slope-intercept form (y=mx+b) and when you get everything you can find the equation y=-1/6x
Hope this helped!
Can someone please help me?
Answers
Answer:
add x
Step-by-step explanation:
1)sx*tx
2)sx+tx
3)s-t
In ⊙E, what is AC?
in need of answers
Answers
Answer:
d
Step-by-step explanation:
i looked up the answers
The length of AC is 6.4 unit.
The correct option is C.
We have the figure from which we can say that
BD is the diameter which is
= 4.8 + 1.6
= 6.4 unit long.
Now, AC is the chord.
As, the distance between the two opposite point the the surface of circle would be same.
Then, the length of AC = length of BD
Thus, the length of AC is 6.4 unit.
Learn more about Circle here:
https://brainly.com/question/29142813
#SPJ2
CAN SOMEONE HELP ME WITH THIS?
Answers
Answer:
The answer is 938. ;}
Step-by-step explanation:
Answer:
The answer is 938
Step-by-step explanation:
i hope it Helped!! <3
kayla picks 8 pounds of apples. What is the weight of kayla's apples in ounces?
Answers
Answer:
128
Step-by-step explanation:
3(x – 2) – 2x + 3 = -12
Answers
Identify the population and the sample in the situation below:
The coach wants to know which uniform the soccer team wants to wear, but he only asks the starting eleven players.
Question 1 options:
Population: soccer team, Sample: starting eleven player
Population: the starting eleven, Sample: soccer team
Population: the coach, Sample: soccer team
Population: soccer team, Sample: uniforms
Answers
Answer:
your answer is, A Population: soccer team, Sample: starting eleven player.
Step-by-step explanation:
I just took the test.
The population and the sample in the situation below is a Soccer team and starting eleven players respectively.
What is sample space?The sample space S of a random experiment is defined as the set of all possible outcomes of an experiment. In a random experiment, the outcomes, also known as sample points, are mutually exclusive.
Given, The coach wants to know which uniform the soccer team wants to wear, but he only asks the starting eleven players.
Since A population is an entire group that you want to draw conclusions about. A sample is a specific group that you will collect data from. The size of the sample is always less than the total size of the population.
and The sample space S of a random experiment is defined as the set of all possible outcomes of an experiment.
Thus in our case,
Population: soccer team
Sample: starting eleven players
Learn more about sample space here:
brainly.com/question/30206035
#SPJ3
The temperature fell by 4 degrees Fahrenheit today. Write a signed number to represent this temperature change
Answers
Answer:
-4
Step-by-step explanation:
?
Find the perimeter of the
polygon if ZB = ZD.
5 cm
B
6 cm
D
7 cm
Answers
Answer:
6cm
Step-by-step explanation: hey u yea u ur kinda sus ngl
Answer: 48
Step-by-step explanation:
yes