Answer:
Car A speed = 80 m/s
Car B speed = 60 m/s
Step-by-step explanation:
Let Speed of Car A be represented as x
Let Speed of Car B be represented as y
280 = (x+y)(2)140 = x+y --> Equation 1Let z represent the distance that Car A travels until it catches up to Car B
280+z = x(14)Since it takes 14 hours for Car B to cover the distance z,
z = 14y280+14y = 14x280 = 14(x-y)20 = x-y --> Equation 2Solving Equation 1 and Equation 2, we get:
x = y+20140 = 2y+20120 = 2yy = 60 x = y+20 = 80Answer:
Car A speed = 80 km/h
Car B speed = 60 km/h
Step-by-step explanation:
A trapezoid with a height of 8 ft base measuring 11 ft has an area of 112ft find the length of the other base
Answer:
1.27272727273 I think
Step-by-step explanation:
A. (-5,-)
B. (-2,-4)
C. (1.-6)
D. (-5.-5)
I need help. i cant figure it out. please someone help.
Answer:
Step-by-step explanation:
Answer:
.eooekekenenenenesususu
Tell whether the side lengths 18, 24, and 30 would form a right triangle?*
O Yes
O No
O Not enough information
Answer:
yes 18 24 and 30 does form a right triangle
Guys pls help me!!!!!!
Answer:
This would be graph A
Step-by-step explanation:
x = 2 means that it is a vertical ( up and down) line
It is a x=2
This would be graph A
restaurant bill:$175 with a 20% tip what will the be the amount of tip
Answer:
$35.00
Step-by-step explanation:
175 x .20=35
need help will give brainliest
Answer:
40.56
Step-by-step explanation:
2pir
8÷2=r=4
2pi4=25.13
25.13÷2=12.565
10+10+8+12.56=40.565
Solve the inequality. Graph the solution. −8≤2/5(k−2) The solution is .
Answer:
Step-by-step explanation:
Multiply both sides by 5(k - 2)
-8*5(k - 2) ≤2 Combine -8 and 5
-40 (k - 2) ≤2 Remove the brackets
-40k + 80 ≤2 Subtract 80 from both sides
-40k ≤ -78 Here's the trick part. Pay attention. Divide by - 40
k ≥ - 78 /- 40
k ≥ 1.95
Did you see what happened? The ≤ operation turned into ≥ That always happens when dividing by a minus or multiplying by a minus or if you change the side where literal coefficient is.
What is the probability that the dice shows a 2?
Answer:
1/6
Step-by-step explanation:
the probability of rolling a 2 is 1/6
PLSSS HELLLLPPPP. MEEee
Answer:
B
Step-by-step explanation:
Since here, 100x = 1, and since we already have one, we can leave that aside. It would never be d because that is way larger. The second square is 6/100 and since earlier we said 100x = 1, we would have to make an equation. Your answer is B
5.
Write the inequality in words.
3n < 52
A. fifty-two less than three times n
B. Three times n is less than or equal to fifty-two.
C. Three times n is less than fifty-two.
D. Three times n is greater than fifty-two.
Answer:
C
Step-by-step explanation:
3n= 3 times n
And it is less than 52
Answer:
C. Three times n is less than fifty-two.
Step-by-step explanation:
Which of these is a simplified form of the equation 15x + 4 = 5 + 3x + 1x? (2 points)
0 3x = 9
0 3x = 11
O 11x = 9
0 11x = 1
Answer:
11x=1
Step-by-step explanation:
15x+4=5+3x+1x Bring everything with an x in front of it to the left side
15x-3x-1x+4=5 Simplify the x values
11x+4=5 Bring the 4 to the right side
11x=5-4
11x=1
Can someone please help me out!!!!
How many minutes are there in 12.5 hours?
Answer:
750 minutes
Step-by-step explanation:
Answer:
750 minutes would be your answer
Step-by-step explanation:
Solve the equation
2.9=7.1 + y
Answer:
y=-4.2
Step-by-step explanation:
2.9=7.1+y
2.9-7.1=7.1-7.1 +y
-4.2=y or y= -4.2
y = -4.2
If you substitute that value for y into the equation, you'll get 2.9 = 7.1 + (-4.2)... and that is a correct, valid equation. HOPE THAT HELPS!
A running track design is composed of two half circles connected by two straight-line segments. Garrett is jogging on the inner lane (with radius r) while Devin is jogging on the outer (with radius R). If r= 30 meters and R= 33 meters, how much longer does Devin have to run to complete one lap?
Answer:
18.86 m
Step-by-step explanation:
From the given question, both covers the same distance of the straight line segment.
For the inner lane,
length of arc of its semicircle = [tex]\pi[/tex]r
= 30 x [tex]\frac{22}{7}[/tex]
= 94.2857
So that,
the total length for the two halves of the inner lane = 2 x 94.2857
= 188.5714 m
For the outer lane,
length of arc of its semicircle = [tex]\pi[/tex]r
= 33 x [tex]\frac{22}{7}[/tex]
= 103.7143
The total length for the two halves of the outer lane = 2 x 103.7143
= 207.4286 m
The difference between the two = 207.4286 - 188.5714
= 18.8572 m
Therefore, Devin would run 18.86 m more to complete one lap.
PLEASE HELP IM DESPRATE 50 POINTS
Explain a real world example of a combination where repetition is allowed. You need to EXPLAIN WHY, not just give an example.
A real world example where repetition is allowed is in the sport of archery, where players get multiple attempts to shoot an arrow as close to the center of the target as possible
can someone help me
Answer:
z equals 13 yeeeeeeeeetttttttttttttt I hopppppeeeee thhhhhaaaaatttttt heeeeelllllllpppppppsssssss
plzzzzz help i really need it guys thxxxxxxxx!
Answer:
11. m=-1/4 b=5 equation is y=-1/4x+5
12.m=4/3 b=0 equation is y=4/3x
Step-by-step explanation:
Which of the following correctly gives the center and radius of the circle defined by the equation (x - 7)2 + (x - 2)2 = 10? A. Center: (7, 2); Radius = 100 B. Center: (7, 2); Radius = 10 C. Center: (-7, -2); Radius = 100 D. Center: (-7, -2); Radius = 10
Answer:
Center (7,2) and radius = 10
Step-by-step explanation:
Generally, we have the equation of a circle as follows;
(x-a)^2 + (y-b)^2 = r^2
where (a,b) represents the circle center and r represents the radius of the circle
Looking at the given equation of a circle, we have it that the center is (7,2) while the radius of the circle is 10
What is the answer?
Please answer quickly!
Thank you so much
Answer:
x=11
Step-by-step explanation:
Hi, there you are using are multiplying so you have to add the exponets 3 and 8 which would equal to 11
Explain why that price seems to be a linear function of the number of boxes ordered?
Heeeeeelp
Answer:
Step-by-step explanation:
Because it's adding by a constant I'm pretty sure
In the Figure, △ABC ≅ △FDE
A theme park has a ride that is located in a sphere. The ride goes around the widest circle of the sphere which has a circumference of 558.92 yd. What is the surface area of the sphere? Use 3.14 for Pi.
Answer:
99437
Step-by-step explanation:
Use the sphere formula 4pi r^2.
By the way, can you follow me on Brainly?
Thanks!
Explain in your own words why a constant has a degree of zero
Answer:
See below
Step-by-step explanation:
Because a constant never changes. It stays constant (it's in the word)! The function never changes since the slope is 0, therefore there's no vertical change.
Answer:
Step-by-step explanation:
The function value never changes and is always graphed as a horizontal line so theirs slopes become zero. This means there is no change that is vertical within and throughout the function.
Helped by the ONE & ONLY #QUEEN aka #DRIPPQUEENMO!!
HOPE THIS HELPED!!
How many choices do you have for your lunch if you pick either an orange or apple and pretzels or carrots to go with your sandwich?
Answer:
4
Step-by-step explanation:
So you can have
An orange + pretzels
An orange + carrots
Apple + pretzels
Apple + carrots
I think this is what they are asking for but I'm not sure
Graham wants to determine which football team is the most popular at a game between the home team and the visiting team. Which of the following methods will give him the most accurate results?
4 (– 2а – 6b + 5а — 1)
Answer:
Evaluate: 12a - 24b - 4
Benji is conducting an experiment. He has 0.78 L of solution to divide evenly among 8 petri dishes. How much solution should he put in each petri dish? 0 7.22L 8.78 L 103 mL O 97.5 mL
0.78 L of solution divided into 8 dishes so 97.5 :)
Answer:
97.5
Step-by-step explanation:
im on the review and I clicked check answer and got it right
The value of the power (-8) ti the second power is
Answer:
64
-8 to the second power is -8^2 Which is -8×-8 Which gives 64
