Answer:
4.75 seconds
Step-by-step explanation:
14.7 - 9.95
Answer:
The Olympian completed the 100-meter dash 4.75 seconds faster than the gym teacher. You could also say he was 3.25 meters per second faster.
Step-by-step explanation:
To get 4.75 I just subtracted and found the difference between both of their times.
To find the difference between their speeds, I divided 100 by each time to get each person's distance per second. The olympian's speed was 10.05 meters per second and the gym teacher's speed was 6.80 meters per second. To find the difference between these, I subtracted the same way I did with the time difference.
help pls its 2 questions only the teacher didnt explain this
Answer:
Step-by-step explanation:
( a ). If input is 2
2 × [tex]\frac{3}{4}[/tex] ÷ [tex]\frac{2}{3}[/tex] = [tex]\frac{3}{2}[/tex] × [tex]\frac{3}{2}[/tex] = [tex]\frac{9}{4}[/tex] = 2.25
If input is 2, then output is [tex]2\frac{1}{4}[/tex]
( b ). If output is 1/2
x × [tex]\frac{3}{4}[/tex] ÷ [tex]\frac{2}{3}[/tex] = [tex]\frac{1}{2}[/tex]
[tex]\frac{9}{8}[/tex] x = [tex]\frac{1}{2}[/tex]
x = [tex]\frac{1}{2}[/tex] ÷ [tex]\frac{9}{8}[/tex] = [tex]\frac{4}{9}[/tex]
If output is [tex]\frac{1}{2}[/tex] , then input is [tex]\frac{4}{9}[/tex]
Answer:
Step-by-step explanation:
a) input is 2
2 * 3/4 = 6/4
(6/4) / (2/3) = 18/8 or 2.25
b) output is 1/2 (this time we go backwards)
if it is multiply we divide and if it is divide we multiply
1/2 * (2/3) = 2/6 (it said divide by 2/3 so we multiply)
(2/6) / (3/4) = 8/18 or 4/9 (it said multiply by 3/4 so we divide)
True or False:
The relation below is a function.
{(2, 3), (1, 3), (0, 3), (-4,3)}
True
False
PLEASE!!!!!!!!!!!!!
help ill give brainlest pls
Answer:
it's should be B
reflection over the x-axis
Answer:
D - Translation
Step-by-step explanation:
The image in the -x and -y looks exactly the same as the image in the -x +y which can only mean that it was the process of "translation".
Pls help and tell me what points to do and I’ll give u brainliest
Answer:
See explanation and picture below.
Step-by-step explanation:
When the storm began, there was an inch of snow on the ground.
The time on the graph is the number of hours since the storm began.
At the time the storm began, no time had passed since the storm began, so at the time the storm began, time was zero. At zero time, the snow was 1 inch. That gives you the point (0, 1).
For the next 6 hours, snow fell at a constant rate of 1 inch per hour.
At time 1 hour, there were 2 inches of snow. Point: (1, 2).
At time 2 hours, there were 3 inches of snow. Point (2, 3).
At time 3 hours, there were 4 inches of snow. Point: (3, 4).
At time 4 hours, there were 5 inches of snow. Point (4, 5).
At time 5 hours, there were 6 inches of snow. Point: (5, 6).
At time 6 hours, there were 7 inches of snow. Point (6, 7).
The storm then stopped for 3 hours. That means for the next 3 hours after time 6 hours, the snow stayed at 7 inches.
Points: (7, 7), (8, 7), (9, 7).
Then the storm started up again dropping 3 inches of snow per hour for the next 4 hours.
That gives us the next 4 points, in which the hour goes up one by one, and the snow goes up three by three.
Points: (10, 10), (11, 13), (12, 16), (13, 19).
Now you need to plot all the points in bold above and connect them with line segments.
See the picture below.
Mind lending a hand?
Answer:
3- Answer is D or 35
4- Answer is B 5,9,6
Step-by-step explanation:
HELP ASAP
Ayanna plans to bake 3 types of cookies to take to a party. She needs to be sure that she has enough flour. The chocolate cookies use
1
3
4
cups of flour, the sugar cookies use
3
2
3
cups of flour, and the oatmeal spice cookies require
1
7
8
cups of flour. Which is the BEST estimate of the total amount of flour she will need?
Answer:
she will need about
7 and 1/3 cups of flour
Step-by-step explanation:
1 3/4+ 3 2/3 +1 7/8= 7.29 rounded off would be about 7 1/3 cups of flour
find the x helpp pleaseee
you can solve this using pythagoras theorem which states that the sum of the square of the lengths of the sides adjacent to the right angle is equal to the square of the length of ypotenuse (hypotenuse is the longest side which is opposite to right angle)
( the attached image will help you understand the theorem better)
so
20² + 15² = x²
400 + 225 = x²
625 = x²
√625 = x
25 = x
Solve the equation. 3(20 + 4) =
Answer:
72
Step-by-step explanation:
3 (20 + 4)
= (3*20) + (3*4)
= 60 + 12
= 72
Hope it helps ⚜
pls ill give brainelist
Answer:
IT C BECUASE THEY FOLLOWING A LINE IN A CLUSTER THAT RIGHT BECUASE IT CANT BE D BECUASE IT NOT DESCRIBING THE ENTIRE THING BRAINLITS PLS
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
The plot looks like an inverted parabola with a point in the middle that does not belong to the parabola.
Answer: D.
Find the slope and the y-intercept of the graph of y=6x-5.
Answer:
slope: 3 || y-intercept: 9.4
Step-by-step explanation:
Given equation:
y - 1 = 3x + 8.4
y = 3x + 8.4 + 1
y = 3x + 9.4
Comparing with the formula of slope intercept form: y = mx +b
where m is the slope and b is the y-intercept.
So here the slope: 3 and y-intercept is 9.4
Answer:
y = 6x - 5
Slope - 6
Y-Intercept - (-5)
y - 1 = 3x + 8.4
Slope - 3
Y-Intercept - 9.4
Sam is a scuba instructor and charges 50 dollars for 2 lessons 90 dollars for 4 lessons and 210 for 10 lessons. Write an equation representing the total cost for taking any number of lessons. How much does it cost per lesson ? Whats the Hidden cost/constant ? Write an equation representing the table above.
Answer:b
Step-by-step explanation:hope this helps
Distributive property (10) points and brainlest
Answer:
[tex]7*(10-7)[/tex]
[tex]7*3[/tex]
Step-by-step explanation:
1: find common divisor
7
2: factor out that divisor
[tex]7((70/7)-49/7)= 7(10-7)[/tex]
3: simplify
[tex]7*3[/tex]
Answer:
The empty space is a 10
Step-by-step explanation:
7 (10-7)
Multiply 7 by 10 and -7
70 -49
Solve the system of equations using the elimination method.
4x+3y=16
x=-3y+13
Answer:
x=1 y=4
Step-by-step explanation:
1. 4x+3y=16
x=-3y+13
2. 4x+3y=16
x+3y=13
3. 4x+3y=16
-x-3y=-13
4. 3x=3
5. x=1
6. (1)=-3y+13
7. 1-13=-3y
8. -12=-3y
9. y=4
Please help for brainlist
To the nearest hundredth, what is the measure of DE¯¯¯¯¯?
PLEASE HELP!!!!!!!
1.55
4.69
14.83
17.09
Answer:
14.83
Step-by-step explanation:
We can use the Pythagorean theorem to solve the question
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
6^2 + DE ^2 = 16^2
36+ DE ^2 = 256
Subtract 36 from each side
DE ^2 = 256-36
DE ^2 = 220
Taking the square root of each side
sqrt( DE^2) = sqrt(160)
DE =14.83239697
Rounding to the nearest hundredth
DE =14.83
arlos's family eats a lot of eggs. They have
4
7
12
cartons of eggs. If they use
3
1
12
cartons of eggs for breakfast, how many eggs will be left? A carton holds 12 eggs. (HINT: Draw a picture.)
Answer:
18 eggs
Step-by-step explanation:
4 7/12 - 3 1/2
= 1 6/12 or 1 and 1/2
* 12 and you get 12 and 6 eggs
12+6 = 18
GIVING BRAINLIEST FOR BEST ANSWER!
Solve two eighths times four fifths.
A) six fortieths
B) eight fortieths
C) six thirteenths
D) eight thirteenths
Answer:
B
Step-by-step explanation:
I am so sorry, but I have no way to explain this answer, but it is not randomly picked
i have 15 minutes to finish this and i need help on these
Answer:
question 2: is 50.96
question 3: is 72
Step-by-step explanation:
HELP ILL GIVE BRAINLIEST
Answers:
1.) C and F - I simply found the volume of all of the prisms.
2.) 210 cubic cm - I multiplied 5x6x7 and got a volume of 210 cubic cm.
3.) C.) Volume - You were given the length, width, and height.
4.) B, C, E
5.) C, D, E
6.) A, C, E - I multiplied everything to see what match the volume of 240.
7.) 400 cubic inches - Multiply them all.
8.) 180 cubic feet - 8x3x5 + 4x5x3
9.) A.) Length A- 5ft Width B- 4ft B.) 104 cubic feet
10.) 300 cubic inches - 8x3x5 + 12x3x5
Side note:
Volume is calculated by multiplying length, width, and height. Your work should be multiplying those. Ask me any questions! Brainliest would be greatly appreciated.
I hope this helped!
Good luck <3
Please help me have to turn it in 30 minutes.
Please help me out with this
Answer:
12
Step-by-step explanation:
Find the mean, you need to add up all the numbers and divide by how many there are.
Woodborough ages total 320, so divide that by 20 entries is mean of 16.
Parkville ages total 560, divided by 20 is a mean of 28.
28-16=12
FAST ANSWER PLEASE!!!!!!!!!!!!!!!!!
There are 15 violinists in the orchestra this year. Next year, two violinists will leave and some new violinists will join the orchestra. If v is the number of violinists who will join the orchestra, write an expression to represent the number of violinists in the orchestra next year.
Answer:
15 - 2 + v
Step-by-step explanation:
i'm not to sure i asked my friend and she's very smart so i think thats ir
*sorry if its wrong*
Answer:
15-2+V=total number of violinists in the orchestra next year
Select all triangles whose side lengths prove they are right triangles. You must select all that apply.
A 5, 9, 6
B 0.5, 1.2, 1.3
C 7, 20, 24
D 3, 4, 5
E 5, 13, 12
Answer:
B and D
Step-by-step explanation:
0.5 squared + 1.2 squared = 1.69 [tex]\sqrt{}[/tex]1.69 = 1.3
3 squared plus 4 squared = 25 [tex]\sqrt{}[/tex]25 = 5
if you need help with a question similar to this, you can use Desmos Calculator. hopes this helps :)
If Krista wants the pen to be four times the area it is now
(5 feet long by 4 21 feet wide), what are two ways she could change
the length and/or width to give her that new area? What would the new area be?
can someone help me out here-
Answer:
Translation is when you move a shape on a coordinate plane.
Reflection is when the shape is flipped from one axis to the other, can be x or y.
Rotation is when the shape is rotated on the coordinate plane.
Please help!! 6th grade math IXL
Answer:
The answer should be 216 if you are just looking for the volume.
hope i helped
Step-by-step explanation:
In order to find volume, you must first know the formula A*A*A meaning width and length which make base and height in order to find the volume. Since its a cube all sides must be equal and that means all the measurements are the same. So all you must do is get six and times it by six. Then the answer for that must be multiplied again to get your volume.
EX: 6*6*6=216.
A certain type of bacteria reproduces so that after x hours there are 15x cells. What single power represents he size relationship between the cell population after 24 hours and the cell population after 8 hours? Show your work
Answer:
let's say cells is c and hours are x that means there are 15 cells each hour. the equation for that is c=15x
after 08 hours the cells have multiplied 8 times their original size. meaning that the equation changes to this: c=15x x=8 c= 15(8)
x equals 8 at that time.. literally
ok the cells have multiplied and now there are 120 cells in total
then after one day the cells have multiplied over 12 times afterwards. now x equals 24. the equation would look a little like this:
c=15x x=24 c= 15(24)
there are 360 cells now.
Explain in your own words the relationship between x=8 with x=24 in the equation.
help ill give brainlest pls
Answer:
It is A
Step-by-step explanation:
Cuz it rotates Over the axis and reflect over it
Graph the inequality below on the number line.
x>-6
Plot an open hole at -6; shade to the right
The open hole is because we don't include -6 itself.
The shading to the right indicates all numbers larger than -6.
Answer:
mark an open dot on -6 then make a line going to the right
Step-by-step explanation:
if the inequality sign is facing the variable (x) then the values will get bigger.
So the direction of the line will go to the right because the values are getting bigger going to the right
Select the number line model that matches the expression -2/3 - 5/3
Answer:
C. None of the above
Step-by-step explanation:
You want an number line representation of the expression |-2/3 -5/3|.
ValueThe expression is evaluated by performing the sum -2/3-5/3, then finding its absolute value. The sum is -7/3, and its absolute value is 7/3.
None of the number line diagrams shows the sum or its absolute value.
__
Additional comment
The sum would be shown by moving from 0 to -2/3, then moving an additional -5/3 to the point -7/3. The absolute value would reflect that across the 0 point to +7/3.
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