Answer:
Step-by-step explanation:
To calculate the speed of each one we proceed as follows:
speed=distance/time
a] Noah's speed:
distance=2.5 miles
time=3/5 hours
speed=(2 1/2)/(3/5)
=(5/2)/(3/5)
=5/2×5/3
=25/6
=4 1/6 mi/hr
Emily's speed
distance=3 3/4 miles
time=5/6 hour
thus
speed=(3 3/4)/(5/6)
=15/4)/(5/6)
=15/4×6/5
=4 1/2 mi/hr
Anna's speed:
distance=3 1/3 miles
time=3/5
speed=(3 1/3)/(3/5
=(10/3)/(3/5)
=10/3×5/3
=5 5/9 mi/hr
Anna was the fastest
if you reflect any shape across the x-axis and then rotate it 90 degrees clockwise about the origin, do you get the same results as if you reflect it across the y-axis and then rotate it 90 degress counterclockwise about the origin? what does this mean?
Yes, a shape can be reflected across the x-axis and then rotated 90 degrees in a clockwise direction around the origin to achieve the same results as a shape reflected across the y-axis and rotated in a counterclockwise direction. This implies that these two transformational sequences are similar.
What is reflection in Mathematics?A reflection is referred to as a flip in geometry. A reflection is the shape's mirror image. A line, called the line of reflection, will allow an image to reflect through it. Every point in a figure is said to reflect the other figure when they are all equally spaced apart from one another.
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translate the following questions and solve afterward
the sum of twice a number and 19 is -23
the quotient of a number and -5 decreased by 9 is 2
fourteen subtracted from the product of a number is -3 is 25
Will mark Brainlist!
Answer:
4,880
Step-by-step explanation:
33.2% x 14,700 = 4880 employes
Answer:
4,880
Step-by-step explanation:
33.2% x 14,700 = 4880 employees
what is 43,6480 x 34,4608 =
Answer:
The answer is 1504.1449984 , hope this helps :)
Answer:
436,480 multiplied by 344,608 is 150,414,499,840.
Step-by-step explanation:
hope this helped (:
how would you solve -5(x - 1) = 40
Answer:
x = -7
Step-by-step explanation:
Apply the distributed property: -5x - -5 = 40Simplify: -5x + 5 = 40Subtract 5 from each side, so it now looks like this: -5x = 35Divide each side by -5 to cancel out the -5 next to x. It should now look like this: x = -7I hope this helps!
4(8x + 1) - 6(1 - 8x) .......
Answer:
80x-2
Step-by-step explanation:
4(8x+1)-6(1-8x)
32x+4-6+48x
32x+48x+4-6
80x-2
Brandon came home from school and informed his mother that he had volunteered to make cookies for his entire grade level.He needs 3 cookies for each of the 36 students in seventh grade. Unfortunately, he needs the cookies the very next day! Brandon and his mother determined that they can fit 96 cookies on two cookie shIs the number of cookies proportional to the number of cookie sheets used in baking?
Create a table that shows data for the number of sheets needed for the total number of cookies baked.
Number of pans
Number of cookies
2
36
4
72
10
180
16
288
The unit rate of x/y is __________.
Constant of Proportionality:_______.
Explain the meaning of the constant of proportionality in this problem?
Two pounds of peaches cost $4.50, 5 pounds cost $11.25, and 10 pounds cost $22.50. Show that the relationship between the number of pounds of peaches and the cost is a proportional relationship.
Y Cost
$4.50
X pounds
2
k=y/x Write an equation where y is the cost and x is the number of pounds.
Answer:
72
Step-by-step explanation:
Two parallel lines, a and b, are cut by transversal p. What is the measure of triangle x
Answer:
b will be the right answer
I am sure
Answer:
75
Step-by-step explanation:
5x+3y=18 and 3x-3y=15 solve for y and x using elimination method
Answer:
x = 4.125 or [tex]4\frac{1}{8}[/tex]
y = -0.875 or [tex]-\frac{7}{8}[/tex]
Step-by-step explanation:
5x + 3y = 18
3x - 3y = 15
3y and -3y can be cancled out becuase + and - cancel out and they both have 3y in them. We don't have to switch any signs in this case. You can just add them all exept 3y and -3y becuase they will be canceled out.
8x = 33
x = 4.125
Now we know what x is. We need to figure out what y is now. To figure out y chose an equation from the problem and plug in the x value. Lets chose 3x - 3y = 15.
3(4.125) - 3y = 15
12.375 - 3y = 15
-3y = 2.625
y = -0.875
Now we know what y is. I hope this helps :)
A store sells two kinds of candles,scented candles and unscented candles. The candles burn at different rates which kind of candle burns more in one hour? How much more per hour? The scented one burns 1/8inch an hour 1/4 hour and the unscented one burns 1/9 inch in 1/3 hour. SHOW WORK!!!!
Step-by-step explanation:
The first thing we must observe is that the hourly rate for each candle is:
scented candles:
(1/12) / (20/60)
Simplifying:
= (1/12) / (10/30)
= (1/12) / (5/15)
= (1/12) / (1/3)
= (3/12)
= (1/4) inches / hour
Unscented candles:
(1/6) / (30/60)
Simplifying:
= (1/6) / (15/30)
= (1/6) / (3/6)
= (1/6) / (1/2)
= (2/6)
= (1/3) inches / hour
Answer:
The unscented candles burn faster at a rate of:
(1/3) inches / hour.
Answer:
You look at the numbers
Step-by-step explanation:
1/8inch per hour
Help ASAP!!! I'll give brainlest to whoever explains it right
Here brainliest look arE the picture
Answer:
12p = 48
3rd option
Step-by-step explanation:
total photos =48
pages on website = 12
photos on each page = p
then,
p =48/12
that is
12p =48
Please Help Me i will Give Brainliest
Answer:
C 2/3
Step-by-step explanation:
SOMEONE PLEASE HELP !!
Answer: ITS C
Step-by-step explanation:
PLS HELP DUE SOON!! (retest) will give brainliest <3
help again. thanks again for helping me. also take ur time.
Answer:
2
Step-by-step explanation:
-10*7.5+115=p
115-75=p
p=40
Carter pushes a bag full of basketball jerseys across the gym floor. Then he pushes with a constant force of 21 newtons. If he pushes the bag 9 meters in 3 seconds, how much power does he use? (Hint: 1 watt = 1 .)
Answer:
Carter needs a power equal to 63 W to be able to push the bag full of Jersey. This is by using the formula: Power is equal to the product of Force applied and Displacement all over time traveled.
Answer:
he had pushed in 24 and the 33
Step-by-step explanation:
b/5 = 8/16
(character limit)
Complete the table to show the amounts of yellow and red paint needed for different-sized batches of the same shade of orange paint. (3, 4, and 5 batches) Show your work on the space provided.
Having a little trouble with the chart
Answer:
10:12
15:18
20:24
25:30
Step-by-step explanation:
you could just multiply 5 and 6 by the same number so you would get ratios that are equal to each other so for example for 10:12 5 and 6 is getting multiplied by 2
The Suarez family paid $15.75 for 3 movie tickets. How much would they have paid for 12 tickets?
Answer:
$63
Step-by-step explanation:
15.75 / 3 = 5.25
5.25 is what each ticket was worth
5.25 * 12 = 63
Answer:
$63
Step-by-step explanation:
15.75 divided by 3 = 5.25 then 12 * $5.25 = $63
Hope this helps! :>
Which point on the number line shown would represent the fraction 3/20?
Point A
Point B
Point C
Point D
Answer:
Point A
Convert fraction into decimal =0.15
A double line graph can compare the changes of two different things over a period of time. True or false
Answer:
i think this is true because on a line graph nothing stays the same.
Step-by-step explanation:
If we start line graph on the viruses that are going around the number of deaths and cases would change every day and every second
Answer:
true
Step-by-step explanation:
James ate 150 gummy bears last week. This week he plans on increasing the number of gummy bears he eats to 180 . What is the percentage increase in his gummy bear consumption?
A) 17%
B) 20%
C) 50%
D) 30%
E) 75%
PLEASE HELP A GIRL OUT!!
Answer:
C
Step-by-step explanation:
It is C because the question asks for 1/4th of the wholw angle =45 degrees
hope this helps
Answer:
I think its c
Step-by-step explanation:
Jeff is 4 times older than his daughter. Five years ago he was 9 times older than his daughter. Write an algebraic equation to determine the age of his daughter.
Jeff is 32, His Daughter is 8
The relationship between the age of Jeff and his daughter can be summarized by the following systems of equation:
Jeff's age = x
Jeff's Daughter's age = y
x=4y jeffs age is equal to his daughters times four
x-5=9(y-5) jeffs age minus five is equal to his daughters age minus five as well times 9
Combining these equations will get us x=32, y=8.
The algebraic equation 4D - 5 = 9D - 45. The current age of Jeff's daughter is 8 years old.
Let's represent the current age of Jeff's daughter as "D" and Jeff's current age as "J".
According to the problem:
Jeff is 4 times older than his daughter, so we can express this relationship as:
J = 4D
Five years ago, he was 9 times older than his daughter. This means that their ages five years ago are:
(J - 5) = 9(D - 5)
Now, we can write the algebraic equation to determine the age of his daughter (D):
(J - 5) = 9(D - 5)
Since we already know that J = 4D, we can substitute this into the equation:
(4D - 5) = 9(D - 5)
Now, we can solve for D, which represents the current age of Jeff's daughter. Expanding equation:
4D - 5 = 9D - 45
Next, move the variables to one side and the constants to the other side of the equation:
4D - 9D = -45 + 5
Combine like terms:
-5D = -40
Finally, solve for D:
D = -40 / -5
D = 8
Therefore, the current age of Jeff's daughter is 8 years old.
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what is 2x – 4 = 2? Please answer soon!
(15 points and brainlyist to first person who answers!!!!)
Answer:
x = 3
Step-by-step explanation:
2(3) - 4 = 2
Evaluate the expression below at x = 3.
A.
B.
C.
D.
Answer:
45
Step-by-step explanation:
If you can guess what year, month and day i was born i will give you briliantst
Answer:
2007 December 4th
Step-by-step explanation:
Protein, like carbohydrates and fat, contains calories. The following table shows different amounts of protein and their related amounts of calories. Is this relationship proportional?
Answer:
yes the answer is proportional!! :)
Step-by-step explanation:
Need help please 15 points
Answer:
Paula's tub filled much more faster becasue it has less water to fill up
Step-by-step explanation: