Given:
Jan and Julie started their ride at 09:30 and finished at 15:15.
Stopped for a drink = 20 minutes
Lunch = 45 minute
Rest = 10 minutes
To find:
Time they are riding on their bikes (excluding stops).
Solution:
Jan and Julie started their ride at 09:30 and finished at 15:15.
So, total time of ride including stops is 5 hours 45 minutes or we can say 345 minutes calculated as
[tex]30+60+60+60+60+60+15=345\text{ minutes}[/tex]
We need subtract Drink, lunch and rest time from the total time to get the Time they are riding on their bikes (excluding stops) is
[tex]345-20-45-10=270 \text{ minutes}[/tex]
Therefore, the total time they are riding on their bikes (excluding stops) is 270 minutes.
Lana uses factoring by grouping to factor the polynomial 8x2y−10xy2+12x−15y. Her work follows, but the last two lines of work are missing.
Which answers correctly fill in the blanks?
Select two answers: one for blank 1 and one for blank 2.
Answer:
Blank 1: 2xy(4x-5)=3(4x-5)
Blank 2: (2xy+3)(4x-5)
Step-by-step explanation:
The first step in factoring this polynomial is to find the biggest common factor in both numbers inside the parenthesis, and the second step is to find the biggest common factor of the 2 addents.
The other steps are invalid, either because they don't respect positive or negative signs, or that they just factor it wrong completely.
The only correct answer are:
Blank 1: 2xy(4x-5)=3(4x-5)
Blank 2: (2xy+3)(4x-5)
A triangle has sides with lengths of 18 inches, 24 inches, and 30 inches. Is it a right triangle?
Answer:
yes
Step-by-step explanation:
18^2 + 24^2 = 30^2
324 + 576 = 900
900 = 900
Steph paid $178 after receiving a discount of 15% on a pair of shoes. How much did the shoes cost before the discount? Please help.
Answer:
204.7 is the price before the discount.
Step-by-step explanation:
proof: 178 x 0.15 = 26.7
26.7 + 178 = 204.7
W = A/L
(solve for A)
A = W +L
A = W-L
A = W/L
A = LW
Answer:
A = LW
Step-by-step explanation:
A/L =W
A =WL
therefore, A = LW
Hope it helped
The height of a small rock falling from the top of a 124-ft-tall building with an initial downward velocity of -30 ft/sec is modeled by
the equation h(t) = -16% - 30t + 124, where t is the time in seconds. For which interval of time does the rock remain in the air?
O
t = 2
-2
0
t> 2
Answer:
For the time interval 0 to 2 the ball is in the air.
Select the options according to this.
Step-by-step explanation:
The equation should be [tex]h(t)=-16t^{2} -30t+124[/tex]
Let's find the x intercepts to answer this question.
To find x intercept where the h(t) is 0.
[tex]-16t^{2} -30t+124=0[/tex]
Solve the equation for t.
Use quadratic formula to solve the equation.
a=-16
b=-30
c=124
[tex]x=\frac{-b+/- \sqrt{b^{2}-4ac } }{2a}[/tex]
Plug in the values of a, b and c into the formula
[tex]x=\frac{30+/-\sqrt{(-30)^{2}-4(-16)(124) } }{2(-16)}[/tex]
Simplify it
[tex]x=\frac{30+/- \sqrt{900+7936} }{-32}[/tex]
[tex]x=\frac{30+/-\sqrt{8836} }{-32}[/tex]
[tex]x=\frac{30+/-94}{-32}[/tex]
Simplify it to get two values for x
[tex]x=\frac{30+94}{-32} =-3.875\\\\x=\frac{30-94}{-32} =2[/tex]
x can not be negative, here x represents time t.
So, it starts from 0 and remains in the air for 2 seconds.
Answer:
Yo itś C
Step-by-step explanation:
:-)
(6.4 x 104) + (2.1 x 104
Answer:
884
Step-by-step explanation:
Answer:
884
Step-by-step explanation:
solve for 6.4x104 and add to 2.1x104
Monique wants to enlarge a 4" x 6" photo to frame and hang up. If the enlarged photo must have a width of 3 feet, what is the height of the enlargement? (Be mindful of 4 x 6 is in the format l x w) (Also change to inches first and then convert back to feet)
Answer:
you eould have to start with 4 times 6 welll use algabra
Step-by-step explanation:
HURRY I'M TIMED!!
What is the quotient? -4/5 divided bye 2
Answer:
-0.4
Step-by-step explanation:
Good luck!
4
Gears A and B turn together. Gear A turns 40 times when Gear B turns 60 times. When Gear A turns 160 times,
how many times does Gear B turn?
160 times
180 times
240 times
300 times
Answer:
240 times
Step-by-step explanation:
Use substitution to solve each system of equations. If the system does not have exactly one solution, state whether it has no solution or infinitely many solutions.
2x + 7y = 3
x = 1 - 4y
Answer:
No solution
Step-by-step explanation:
Am I right or wrong if I’m wrong please tell and with explanation
========================================================
Explanation:
Let's say there are 100 students total. You can start with any number you want, but I'm picking a large round number to work with.
3/5 of the total voted, so (3/5)*100 = 0.6*100 = 60 people voted
Of the 60 who voted, 3/4 of those went to the winning candidate.
3/4 of 60 = (3/4)*60 = 0.75*60 = 45
We have 45 people who voted for the winning candidate out of 100 total students, so,
45/100 = (9*5)/(20*5) = 9/20
Meaning that 9/20 of the student body voted for the winning candidate.
--------------------------------
You could also multiply the two given fractions to get the same answer
(3/5)*(3/4) = (3*3)/(5*4) = 9/20
When multiplying, you multiply the numerators together and the denominators together. Reduce the fraction if possible.
WILL MARK YOU BRAINLIEST!!!!!!
Answer:
y = 88
Step-by-step explanation:
Don't worry about the other stuff, just worry about what's in the triangle that has Y.
53°, 39°, and y°
the sum should be equal to 180 so add 53 adn 39 and subtract it from 180.
180 - (53 + 39) = y
180 - 92 = y
88 = y
Hope this helped! Pls Brainliest my answer! It would help amd mean a lot! ;)
in a baseball game the ball traveled 350.7 feet in 4.2 seconds what was the average speed of the ball in feet per second?
Answer:
0.0119760479
Step-by-step explanation:
Answer:
the answer is 83.5
Step-by-step explanation:
Part A: What are the missing numbers in the table? Show your work. (4 points)
Part B: Harry also does part-time yard work. The ratio of the number of hours Harry works in the yard to the money he earns in dollars is 1:10. Create a table to show the money earned by Harry for 5, 6, and 8 hours of work in the yard. (3 points)
Part C: How many more dollars does Harry earn working as a babysitter for 5 hours than doing yard work for 5 hours? Show your work. (3 points)
Part A: The Numbers of Hours and Money earned are being divided by 6 , to solve you need to multiply and divide the numbers by 6 therefore it's 48, and 11.
Part B: Just like Part A Multiplying 6 but this time 7. |5 x 7 = 35| 6 x 7 = 42| 8 x 7 = 56. (I think lol)
Part C: Collins Makes $5 more when working for 5 hours.
Hope this Helped! <3
Solve for v.
- 13 = 7+5v
Answer:
Step-by-step explanation:
- 13 = 7+5v
subtract 7 on both sides to cancel out 7
- 20 = 5v
divide both sides by 5 to isolate v
- 4 = v, v is negative because negative divided by a positive will make your answer stay negative
-7 - 3 = -4
is this correct?
Answer:
-10
Step-by-step explanation:
subract 3 from -7
idk, i am pretty sure its -10
Which of the following best describes the number 1.234?
a. Integer
Selected:b. WholeThis answer is incorrect.
c. Irrational
d. Natural
e. Rational
Answer:
E
Step-by-step explanation:
1.234 is most definitely a rational number!!
Solve each system by elimination: -7x-6y=4 -3x+2y=20
Answer:
Step-by-step explanation:
-7x - 6y = 4
-9x + 6y = 60
-16x = 64
x = -4
-3(-4)+2y=20
12+2y=20
2y=8
y =4
(-4,4)
What is the correct symbol to compare the expressions?
Pls Answer
Answer:
b
Step-by-step explanation:\
when you have a nuber inside a I -7 I and a I -8 you forget about any sign and just take the number so 8 is greater then 7
Answer:
>
Step-by-step explanation:
|-8| = 8
|-7| = 7
8>7
Raleigh went to a gaming arcade for his birthday. His parent gave him $55 to spend. He purchased $14.25 in food and drinks, and put the rest of the money on the gaming arcade. Each Game in the arcade cost $1.25. Write a linear inequality to represent how many games g Raleigh can play in the arcade
Answer:
Step-by-step explanation:
Let [tex]g[/tex] denotes number of games that Raleigh can play in the arcade.
Cost of 1 game = $1.25
Cost of [tex]g[/tex] games = [tex]\$1.25g[/tex]
Amount spent in food and drinks = $14.25
Total amount spent by Raleigh = [tex]14.25+1.25g[/tex]
Also, amount with Raleigh = $55
So, the inequality is [tex]14.25+1.25g\leq 55[/tex]
Divide the inequality by 5
[tex]2.85+0.25g\leq 11[/tex][tex]2.85+0.25g\leq 11[/tex]
Actual roots of f(x)=2x^2+2x-24
[tex]f(x) = 2 {x}^{2} + 2x - 24 [/tex]
[tex]f(x) = 2( {x}^{2} + x - 12) [/tex]
[tex]0 = 2( {x}^{2} + x - 12)[/tex]
Divided sides by 2
[tex] {x}^{2} + x - 12 = 0 [/tex]
[tex](x + 4)(x - 3) = 0[/tex]
_________________________________
[tex]x + 4 = 0[/tex]
[tex]x = - 4[/tex]
_________________________________
[tex]x - 3 = 0[/tex]
[tex]x = 3[/tex]
Thus the actual roots are -4 and 3.....
And we're done.
♥️♥️♥️♥️♥️
Answer:
x= 3, -4
Step-by-step explanation:
Set 2 x ² + 2 x − 24 equal to 0 .
2 x ² + 2 x − 24 = 0
Solve for x .
Factor the left side of the equation.
2 ( x² + x − 12 ) = 0
Factor
x ² + x − 12 using the AC method.
2 ( x − 3 ) ( x + 4 ) = 0
If any individual factor on the left side of the equation is equal to 0 , the entire expression will be equal to 0 .
x − 3 = 0
x + 4 = 0
Add 3 and subtract 4 to both sides of the equation.
x = 3
x = -4
5 tomatoes divided into $3.10
Answer:
0.62
Step-by-step explanation:
3.1 divided by 5
.............................
25x-10=40 solve for x
The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?
OA
12 inches
OB. 15 inches
OC 21 inches
OD. 40 inches
Answer:
Option B: 15 inches
Step-by-step explanation:
p=2w+2l so 12 (2*6) +2x= 42
42-12=30
30/2=15
x+7<13.
^^^^^ answer please & show work .
Step-by-step explanation:
Solve for x.
Please help quickly
Select the correct answer from each drop-down menu.
This image may be the result of the .
If m∠RQS is 75°, then m∠TPU is °. Select the correct answer from each drop-down menu.
Answer:
- construction of a line parallel to line AB through point P
∠TPU is 75°
Step-by-step explanation:
For Plato users
The image may be the result of the construction of a line parallel to line AB through point P
∠RQS is equal to ∠TPU;therefore, ∠TPU is also 75°
Answer:
below
Step-by-step explanation:
Got it right
Pls help me with this! Thank you! (10 points)
A taxi company charges $3 per ride plus $1.50 for each mile traveled. Andrea wants to spend no more than $24 on a taxi ride. How many miles can Andrea travel? Select all that apply.
A 18 miles
B 16 miles
C 14 miles
D 12 miles
E 10 miles
Answer:
C, D, E
Step-by-step explanation:
Victor purchased vinyl records from an online record store: each record that he orders cost $18, and shipping for his order is $12.00. Victor can spend no more than $250. How many records can victor purchase? Write an inequality and solve.
Answer:
Victor can buy 13 vinal records and that would be 234 and with the shipping fee "$12" = $246 so the awnser is 13 records.
Step-by-step explanation:
I put the explanation within the answer.