Answer:
Roller skates speed = 9 miles per hour
Bike speed = 17.5 miles per hour
Step-by-step explanation:
On roller-skates, Ian can travel 3/4 of a mile in 5 minutes.
Speed = Distance(miles)/Time(hours)
Convert 5 minutes to hour
60 minutes = 1 hour
5 minutes = 5/60
= 1/12 hour
Hence, his speed =
3/4mile ÷ 1/12
= 3/4 × 12/1
= 9 miles per hour
On his bike, he can travel 3 1/2 miles in 12 minutes.
Convert 12 minutes to hour
60 minutes = 1 hour
12 minutes = 12/60 = 1/5
Hence, his speed =
3 1/2 mile ÷ 1/5
= 7/2 ÷ 1/5
= 7/2 × 5/1
= 35/2 miles per hour
= 17.5 miles per hour
The graph shows the relationship between the length of time Ted spends knitting and the number of scarves he knits.
What does 161616 mean in this situation?
Choose 1 answer:
Choose 1 answer:
Answer:
The answer is C It takes Ted 16 hours to knit a scarf.
Step-by-step explanation:
I got it on Khan.
Answer:
c
Step-by-step explanation:
If a sprinkler waters 1 over 8 of a lawn in 1 over 4 hour, how much time will it take to water the entire lawn?
a
3 over 8 hour
b
1 over 2 hour
c
2 hours
d
4 hours
If y'll need a brainiest and you have 6 or less answer this question! Just trying to help!
Answer:
wait but do you have a question still or???
I am confused on how to do this.
what is the rate of change please help asap
A 2-column table with 4 rows titled How many text messages do you send a day question mark. Column 1 has entries 0-50, 50-100, 100-150, more than 150. Column 2 has entries 10 percent, 75 percent, 10 percent, 5 percent.
The 4,000 students at Tech High were surveyed about their use of text messaging. How many students said they text 50-100 times a day?
students
Answer:
3000
Is Your Answer
Answer:
3000
Step-by-step explanation:
Plot 2 points 7 units away from 3 in both directions.What are the numbers
Answer:
-4 and 10
Step-by-step explanation:
the numbers decrease as you go left. 3-7= -4. and they increase going right. 3+7= 10.
Write the slope-intercept form an equation of the line that passes through the points (-2,1) and (3,1)
Answer:
y=mx+b
y=1
Step-by-step explanation:
A cell phone plan costs `\$200` to start. Then there is a `\$50` charge each month. Let x represent the number of months, let y represent the total cost of the plan. Write an equation to represent this situation.
Answer:
y=50x+200Step-by-step explanation:
Step one:
given data
cost of plan = $200
monthly charge= $50
let the number of months be x
and the total be y
Step two:
Required
the equation to represent the situation is the same as the straight line equation
y=50x+200
Please help me with my work
Answer:
1. y-4=2(x-2) 2.y-4=1/3(x- -4)
Step-by-step explanation:
Point slope form can be written as y-y1=m(x-x1)
(x1,y1) represents the coordinates provided
m= the slope, which is also provided in the question
Simply fill in the provided numbers into the point slope form equation
hope this helps and take care
Can anyone help me with H?
Answer:
13 units
Step-by-step explanation:
It is an equilateral triangle, so all sides have the same length
An artist plans a sculpture by stacking two cubes. Write an algebraic expression the artist can use to find the volume of the sculpture. Then find the volume of the sculpture when x = 4cm. *Hint: V=s3
Answer:
[tex]V= 2x^3[/tex]
The volume is 128cm^3
Step-by-step explanation:
Given
[tex]Cubes = 2[/tex]
[tex]Sides = 4cm[/tex]
Required
Determine an expression for its volume
Find the volume
Volume of a cube is:
[tex]Volume = x^3[/tex]
Where x represents the length of a side
So, volume of 2 cubes would be:
[tex]V= x^3 + x^3[/tex]
[tex]V= 2x^3[/tex]
Solving (b): Volume when x = 4
Substitute 3 for x in [tex]V= 2x^3[/tex]
[tex]V = 2 * 4^3[/tex]
[tex]V = 2 * 64[/tex]
[tex]V = 128[/tex]
Hence, the volume is 128cm^3
pleaseee helppp ASAPP
Answer:
(-4,22)
Step-by-step explanation:
Answer:
(- 4, 22 )
Step-by-step explanation:
To determine which point lies on the graph, substitute the x- coordinate of the point into the equation and if the value obtained is equal to the y- coordinate of the point then it lies on the graph.
(1, - 2 )
y = - 4(1) + 6 = - 4 + 6 = 2 ≠ - 2 ← not on graph
(- 4, - 10 )
y = - 4(- 4) + 6 = 16 + 6 = 22 ≠ - 10 ← not on graph
(- 4, 22 )
y = - 4(- 4) + 6 = 16 + 6 = 22 ← lies on graph
(1, - 10 )
y = - 4(1) + 6 = - 4 + 6 = 2 ≠ - 10 ← not on graph
5
A line passes through the point (-4, 2) and has a slope of
Write an equation in slope-intercept form for this line.
Answer:
[tex]y=\frac{5}{4}x+7[/tex]
Step-by-step explanation:
We can start by setting up what we know of the slope-intercept equation, which is the slope.
[tex]y=\frac{5}{4}x+b[/tex]
Now, we can use the given point to find the y-intercept.
[tex]2=\frac{5}{4}(-4)+b\\ 2=-5+b\\b=7[/tex]
And now we are able to write the slope-intercept equation.
[tex]y=\frac{5}{4}x+7[/tex]
I hope this helps!
A standard showerhead in Marty's house dispenses 7 gallons of water per minute. Marty changed this showerhead to an energy-saving one. The equation shows the amount of water dispensed, y, as a function of the number of minutes, x, for the new showerhead. y = 3x How much water does Marty save each day with the change in showerheads if he uses the shower for 8 minutes each day? 4 gallons 12 gallons 32 gallons 53 gallons
Answer:
32 gallons
Step-by-step explanation:
A standard showerhead in Marty's house dispenses 7 gallons of water per minute. If he showers for 8 minutes, he uses:
1 minute = 7 gallons
8 minutes = x
x = 7 × 8 minutes = 56 gallons of water
We are told that:
Marty changed this showerhead to an energy-saving one. The equation shows the amount of water dispensed, y, as a function of the number of minutes, x, for the new showerhead. y = 3x
The equation for the energy saving shower:
y = 3x
Where x is the number of minutes spent in the shower
For 8 minutes
y = 3 × 8
y = 24 gallons
The gallons of water Marty saved each day with the change in showerheads if he uses the shower for 8 minutes each day is calculated as:
56 gallons - 24 gallons
= 32 gallons
Which is NOT true?
A 7 + 7 = 19 - 5
B 9 + 9 = 11 + 7
C 19 = 13 + 5
D 20 - 12 = 4 + 4
Answer:
C
Step-by-step explanation:
13+5=18 not 19 therefore C is not true
PLZ HELP ME FAST!!!! 10 points
Analyzing a Scatter Plot
On a graph, points are scattered all over the graph.
Determine if there is a correlation and slope for the scatterplot.
A. positive correlation, positive slope
B. negative correlation, negative slope
C. negative correlation, positive slope
D. no correlation
Answer:
no correlation
Step-by-step explanation:
got it right on edge
Answer:
the answer is D) no correlation
Step-by-step explanation:
Which of the following equation have infinitely many solutions?
Answer:
C
Step-by-step explanation:
algebra test so please don’t answer unless you know you’re right.
Answer: I found the perimeter of the rectangle I got: 10x+4
Step-by-step explanation:
This weekend, they plan to ride a bicycle with a total mileage of 3 3/4. If they travel 2 1/4 miles and take a break, how many miles will they need to travel?
Answer:
1 1/2 miles
Step-by-step explanation:
Total mileage needed = 3 3/4 mies
Amount taken = 2 1/4 miles
Amount they still need to travel = Total-amoutnt taken.
Amount they need to travel = 3 3/4 - 2/1/4
Convert to improper fractions
Amount they need to travel = 15/4-9/4
Amount they need to travel= 6/4
Amount they need to travel = 1 2/4
Amount they need to travel= 1 1/2 miles
In the complex number system, which expression is equivalent to (3 - 5i) - (7 - 81)?
0-4 + 3i
0-19-591
0 10 - 131
0-4 - 131
Worth 25 points!
Simplify these equations with steps please.
√-48
√-63
√-72
√-24
√-84
√-99
Answer:
Step-by-step explanation:
sqrt(i^2*16*3) = 4i[tex]\sqrt{3\\}[/tex]
sqrt(i^2*9*7) = 3i[tex]\sqrt{7}[/tex]
sqrt(i^2*36*2) = 6i[tex]\sqrt{2}[/tex]
sqrt(i^2*6*4) = 2i[tex]\sqrt{6}[/tex]
sqrt(i^2*4*3*7) = 2i[tex]\sqrt{21}[/tex]
sqrt(i^2*9*11)= 3i[tex]\sqrt{11}[/tex]
determine the resulting polynomial
f(x)=9x+2
g(x)=-4x^2-5x+1
Answer:
ithink ilove u so much ..,......
6th grade math i mark as brainliest
Answer:
4
Step-by-step explanation:
2^2=2+2=4
A sandwich shop has 60 stores and 60% of the stores are in California. The rest of the stores are in Nevada. How many stores are in California and how many are in Nevada?
60x0.6=36 in California
60-36=42 in Nevada
help me with this fast
Answer: delete this please
Answer:
For 60: 120
For 65: 115
For 55: 125
( I mean I could be wrong but thats what I got)
Step-by-step explanation:
This is for a grade,Please help me out as much as you can!!!
Answer:
a
Step-by-step explanation:
what is the equation of the line will mark you brainliest
so you're going to need to find the slope. in order to do that use (y2-y1)/(x2-x1)
(7-(-2))/(0-8)
simplify
9/-8
simplify -9/8
now using y=mx+b, we need to find b. so we can plug in the coordinates of (0,7) or (8,-2). let's use (8,-2) because it involves more math.
y=mx+b
-2=(-9/8)(8)+b
multiply (-9/8) by 8 to get -9
-2=-9+b
add 9 to both sides
7=b
so our equation is now
y=-(9/8)x+7
Which expression is equivalent to
1567
A)
5 x 5 x 5 x 5 x 5 x 5
B)
6 x 6 x 6 x 6 x 6 x 6 x 6
C)
6 x 5
D)
5/6
Answer:
A
Step-by-step explanation:
5*5*5*5*5*5
Answer:
the answer is a
Step-by-step explanation:
Need help ASAP please!
Answer:29
Step-by-step explanation: