Let the speed of the first plane be x then the speed of the second plane would be x + 30
The combined speed is x + x + 30 = 2x + 30
2x + 30 = 380
Subtract 30 from both sides
2x = 350
Divide both sides by 2
X = 175
The speed of the first plane was 175 miles per hour the speed of the second plane was 205 hour
A triangle has two 12centimeter sides
. What are the possible lengths of third side?
Answer:
Step-by-step explanation:
if the two sides are 12, the third will have to be shorter so it could be:
( 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 )
good luck!can you choose me brainliest? :D
Im sorry to interrupt but I really need help
Answer:
if player wins by spining the greater number, spinner b should be chosen. However, if the game is won by spinning the lesser number , spinner a should be chosen.
What is the value of 4.2(46-65). A.798 b.-79.8 C.79.8 D.798. I just need the answer you don’t have to work it out
Answer:
b. -79.8.
Step-by-step explanation:
We calculate what's in the brackets first:
46 - 65
= -19
Now multiply by 4.2:
-19 * 4.2
= -79.8.
Algebra 2 will mark brainliest. 4 pictures 4 questions
Answer:
decreasing because x is negative.
18. Hoping to lure more shoppers downtown, a city
builds a new public parking garage in the central business
district. The city plans to pay for the structure through
parking fees. During a two-month period (44 weekdays),
daily fees collected averaged $126, with a standard
deviation of $15.
Answer:
The responses to these question can be described as follows:
Step-by-step explanation:
Please find the complete question in the attached file.
For the random condition:
If other regular fees have been chosen at random, I'd claim I'm satisfactory.
State of autonomy:
Truly content, since the 44 daily fees represent less than 10% of the total population of daily payments, the community must have more than 440 daily fees.
In the Normal Condition:
Since the sample size of 44 is 30 or more, the distribution of the sample means is roughly Normal (as per the total probability theorem).
Hey can you help me fast!!
Select the correct answer
Answer:
x = 95°
y = 147°
z = 128°
Step-by-step explanation:
z = 180 - 52 = 128°
x: first find the remaining angle in the big triangle, 180 - (45 + 50) = 85°
x = 180 - 85 = 95°
y: first find the remaining angle in the small triangle, 180 - (95 + 52) = 33°
y = 180 - 33 = 147°
4TH TIME PLS HELP ME
The angles surrounding the point p are 90 degrees
Then using the angle given, find the missing angles.
JPH = 90
HJP = 49
90+49 = 139
180 - 139 = 41
Therefore JHP = 41
HLP = HJP = 49
HLP = 49
KLP = 72
KLP + HLP = 72 + 49 = 121
Therefore, HLK = 121
LP = JP = 16
JP = 16
HL = HJ = 13
HL = 13
Hope this helps! =)
is this a proportional relationship?
3 2
6 4
9 6
12 8
15 10
Answer:
Yes
Step-by-step explanation:
I got it right.
The angle of depression of a buoy from a point on a lighthouse 120 feet above the water's surface is 10 degrees. Find the distance from the lighthouse to the buoy. Leave answer with two decimal places.
Answer:
680. 55 feets
Step-by-step explanation:
From the diagram, distance from lighthouse to buoy = x
Angle from top of lighthouse to buoy = (90 - 10) = 80°
Using the trigonometric relation :
Tanθ = opposite / Adjacent
Opposite = x
Adjacent = 120
Tan 80 = x / 120
5.6712818 = x / 120
x = 5.6712818 * 120
x = 680. 55 feets
A random number generator is used to select a number from 1 to 50 (inclusively). What is the probability of selecting the number 28?
(Type an integer or a decimal. Do not round.)
Answer:
the answer is 1/50
Step-by-step explanation:
A random number generator is used to select an integer from 1 to 50. Since random number generator generates any number randomly, all the numbers from 1 to 50
Victor bought a new soccer ball. The original price was $29.99, but the ball was on sale for 15%
off. What was the sale price?
Step-by-step explanation:
100-15=85%
85% × 29.99
=$25.49
Tad began his math homework at 8:12 pm. He finished at 8:41 pm. How many minutes did Tad spend on his math homework?
Answer:29 mins
Step-by-step explanation: you take 41- 12= 29
SOMEONE PLS HELP IM CONFUSED , WILL MARK BRAINLIEST
Answer. multiply 13 and 64 then round to the nearest tenth
Step-by-step explanation:
I hope it helps :)
List the first three wholenumbers greater than 50 that will have a remainder of 7 when you divide by 9/ ?
Answer:
52, 61 and 70
Step-by-step explanation:
Given
[tex]Divisor = 9[/tex]
[tex]Remainder = 7[/tex]
Required
Determine first 3 possible dividends
The relationship between the [tex]dividend,\ divisor,\ quotient\ and\ remainder[/tex] is:
[tex]Dividend = Divisor * Quotient + Remainder[/tex]
Substitute: [tex]Divisor = 9[/tex] and [tex]Remainder = 7[/tex]
[tex]Dividend = 9* Quotient + 7[/tex]
Since the Dividends must be greater than 50, then the values of the quotient will be 5, 6 and 7
So, we have:
[tex]Dividend = 9* 5 + 7 = 45 + 7 = 52[/tex]
[tex]Dividend = 9* 6 + 7 = 54 + 7 = 61[/tex]
[tex]Dividend = 9* 7 + 7 = 63 + 7 = 70[/tex]
Hence, the three numbers are: 52, 61 and 70
need help asap! solve for x, the measure of the altitude in the given triangle
Answer:
3.9
Step-by-step explanation:
[tex]8^{2} -7^{2} =15[/tex]
[tex]\sqrt{15} =3.9[/tex]
Which statement is true for the equation 4x - 4x - 5 = -5? (5 points)
1) It has no solution.
2) It has one solution.
3) It has two solutions.
4) It has infinitely many solutions.
Answer:
4)it has infinitely many solutions
CAN SOMEONE HELP ME PLS
Answer:
0.5 < x < 16.5
Step-by-step explanation:
8.5 - 8.0 < x < 8.5 + 8.0 =
0.5 < x < 16.5
Hope that helps! :)
-Aphrodite
when donald trump got fired, was he dog water on fountain?
Answer:
he was complete dog water box like a fish o earnings
Step-by-step explanation:
Find the circumference of a circle with a radius of 4.4 inches. Use 3.14 for pie. Round to the nearest tenth if necessary. Please provide steps. :) :D
Answer:
27.65
Step-by-step explanation:
C=πd=π·8.8≈27.64602
rounded to the nearest tenth would be 27.65
hoped this helped.
pls help! i will make brainliest .. i need help with number 4 .
Answer:
10.0 centimeters
Step-by-step explanation:
I took the test
An angle measures 58° less than the measure of its supplementary angle. What is the
measure of each angle?
Please Help! Will give Brainliest!!
Write with our the absolute value sign
This picture shows a rectangle with length (3D+2)cm and width (d+5)cm.
————
| |
| |
| |3d+2
| |
| |
————
D+5
A) write an expression for the perimeter of the rectangle
B) given that the perimeter is 30cm, make and solve and equation for d.
C) find the area of this rectangle
9514 1404 393
Answer:
A) P = 8d +14
B) d = 2
C) 56 cm^2
Step-by-step explanation:
A) The perimeter is the sum of all of the side lengths.
P = 2(L +W)
P = 2((3d +2) +(d +5)) = 2(4d +7)
P = 8d +14
__
B) Using 30 for P, we have ...
30 = 8d +14
16 = 8d . . . . . . . subtract 14
2 = d . . . . . . . . . divide by 8
__
C) The side lengths are ...
3d +2 = 3(2) +2 = 8 . . . . cm
d+5 = 2+5 = 7 . . . . cm
Then the area is ...
A = LW
A = (8 cm)(7 cm) = 56 cm^2
The area of the rectangle is 56 square centimeters.
PLS HELP ME THIS IS Probability (Single event) PLS HELP ME
Answer:
30%
Step-by-step explanation:
Answer:
25%
Step-by-step explanation:
P(9) = 1/4
P(9) % = 100/4 = 25%
The leaning tower of pisa in italy has a height of 183 feet and is 4∘ off vertical. find the horizontal distance d that the top of the tower is off vertical. round your answer to the nearest tenth of a foot.
The horizontal distance d that the top of the tower is off vertical is equal to the 190.32feet.
We have given that,
The leaning tower of Pisa in Italy has a height of 183 feet and is 4∘ off vertical.
We have to determine the horizontal distance d that the top of the tower is off vertical. round your answer to the nearest tenth of a foot.
What is the horizontal distance d?
The horizontal displacement of a projectile depends upon the initial horizontal speed and the time of travel. The vertical displacement of a projectile.
The horizontal distance d that the top of the tower is off vertical.
183 times 1.04=190.32.
Therefore the horizontal distance d that the top of the tower is off vertical is equal to the 190.32feet.
To learn more about the horizontal distance visit:
https://brainly.com/question/25870256
#SPJ2
what in the world does +1 represent??? thank you!
Answer:
the y intercept
so up 1 from (0,0)
Don’t have to show work
Answer:
I would say A cause I think that that is the closest answer
Step-by-step explanation:
I am so so so sorry if this is wrong I'm not that great at math myself.
what is the equation of the line that passes through the points (4,3) and (6, 2)?
Answer:
y = -1/2 x + 5
Step-by-step explanation:
1) y = mx + b
2) m is the slope and b is the y-intercept
3) For lines like these, the slope is always defined as "the change in y over the change in x" or, in equation form: m = y2 - y1 / x2 - x1
4) Also, let's call the second point you gave, (6,2), point #2, so the x and y numbers here will be called x2 and y2. Or, x2=6 and y2=2.
5) Now, just plug the numbers into the formula for m above, like this: m = -1/2
6) So, we have the first piece to finding the equation of this line, and we can fill it into y=mx+b like this: y = -1/2 x + b
7) To find b, think about what your (x,y) points mean:
(4,3). When x of the line is 4, y of the line must be 3.
(6,2). When x of the line is 6, y of the line must be 2.
8) You can use either (x,y) point you want..the answer will be the same:
(4,3). y=mx+b or 3=-1/2 × 4+b, or solving for b: b=3-(-1/2)(4). b=5.
(6,2). y=mx+b or 2=-1/2 × 6+b, or solving for b: b=2-(-1/2)(6). b=5.
9) So, this means that the equation of the line is y = -1/2 x + 5
Mr. Kumar is getting his house renovated. 1/5 th of the work has been completed in 2 months. How much time will it take for the entire work to be completed?
Answer:
10 months
Step-by-step explanation:
If it takes 2 months to do 1/5th, it will take 4 months to do 2/5, 6 months to do 3/5, 8 months to do 4/5, and 10 months to do 5/5 or in other words the whole thing.
The remaining work will take 8 month.
What is Algebra?Algebra is the branch of mathematics that represents problems in the form of mathematical expressions. It involves variables like x, y, z, and mathematical operations like addition, subtraction, multiplication, and division to form a meaningful mathematical expression.
Given:
As, 1/5 th of the work has been completed in 2 months.
let the total time taken to complete the work is 'x' month.
1/5 * x = 2
x= 5*2
x=10 month
Hence, remaining work will take (10 - 2) = 8 month.
Learn more about algebra here:
https://brainly.com/question/24875240
#SPJ2