Answer:
Maya's biking speed is 8 miles per hour.
Step-by-step explanation:
She can run 18 miles in 3 hours. That means she could run 6 miles in one hour. So, if she can ride her bike 18 miles in 2 hours she can bike 9 miles per hour.
If she bikes for 27 (3 hours) miles and runs 9 miles (1.5 hours) then taking the total of miles dividing it by the time you would get Maya's speed.
Use the multiplier method to increase £258 by 43%
You must show your working
Answer:
258 increased by 43% = 368.94
368.94 - 258 = 110.94 as absolute change
Step-by-step explanation:
258 + Percentage increase =
258 + (43% × 258) =
258 + 43% × 258 =
(1 + 43%) × 258 =
(100% + 43%) × 258 =
143% × 258 =
143 ÷ 100 × 258 =
143 × 258 ÷ 100 =
36,894 ÷ 100 =
368.94; with 110.94 as absolute change.
The required simplified value is given as £368.94.
As given in the question, to determine an increase £258 by 43%.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Let the required value be x,
According to the question,
x = 258 [1.43]
x = 368.94
Thus, the required simplified value is given as £368.94.
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Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
Match each pair of points A and B to point such that _ABC = 90°.
A(3, 3) and B(12, 6)
C(6,52)
A(-10, 5) and B(12, 16)
C(16, -6)
A(-8, 3) and B(12, 8)
C(18,4)
A(12, -14) and B(-16, 21)
C(-11, 25)
A(-12, -19) and B(20, 45)
A(30, 20) and B(-20, -15)
When two lines intersect at 90° degrees angle, the lines are perpendicular to each other. Two perpendicular lines, their slope will give a product of -1
i.e. if the first's line slope is 5, then the second line's will be -1 ÷ 5 = -¹/₅
To find the slope of a line, we divide the vertical distance by the horizontal distance.
We'll use the trial and error method to find the right pairing
Let's start with A(3, 3) and B(12, 6)
Vertical distance =
Horizontal distance =
The slope AB = ³/₉ = ¹/₃
We want BC to have a slope -1 ÷ ¹/₃ = -3
Try C(16, -6); check the slope with B(12, 6)
Vertical distance =
Horizontal distance =
Slope of BC = -12 ÷ 4 = -3
The slope BC = -3 is the value we want so, tile 1 pair with tile 4
-------------------------------------------------------------------------------------------------------------
Let's do A(-10, 5) and B(12, 16)
Vertical distance = 16 - 5 = 11
Horizontal distance = 12 - -10 = 22
Slope AB = ¹¹/₂₂ = ¹/₂
The perpendicular slope would be -1 ÷ ¹/₂ = -2
Try C(18, 4) with B(12, 16)
Vertical distance = 16 - 4 = 12
Horizontal distance = 12 - 18 = -6
Slope BC = ¹²/₋₆ = -2
Slope BC and slope AB perpendicular, so tile 3 matches with tile 6
--------------------------------------------------------------------------------------------------------------
Let's try A(12, -14) and B(-16, 21)
Vertical distance = 21 - -14 = 35
Horizontal distance = -16 - 12 = -28
The slope AB = ³⁵/-₂₈ = ⁵/₋₄
We need the perpendicular slope to be -1 ÷ -⁵/₄ = ⁴/₅
Try C(-11, 25)
Vertical distance with B = 25 - 21 = 4
Horizontal distance with B = -11 - -16 = 5
The slope = ⁴/₅
Tile 7 matches tile 8
--------------------------------------------------------------------------------------------------------------
Take A(-12, -19) and B(20, 45)
Vertical distance = 45 - -19 = 64
Horizontal distance = 20 - -12 = 32
Slope AB = ⁶⁴/₃₂ = 2
We need the perpendicular slope to be -1 ÷ 2 = -¹/₂
We have C(6, 52) and checking the slope with B(20, 45)
Vertical distance = 45 - 52 = -7
Horizontal distance = 20 - 6 = 14
The slope is ⁻⁷/₁₄ = -¹/₂
Tile 9 pairs with tile 2
-----------------------------------------------------------------------------------------------------------
Conclusion
Tile 1 ⇒ Tile 4
Tile 3 ⇒ Tile 6
Tile 7 ⇒ Tile 8
Tile 9 ⇒ Tile 2
Tile 5 and Tile 10 do not have pairs
Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours. When Maya biked for 3 hours and then ran for 1 hour and 30 minutes, what was her average speed?
Answer: 8
Step-by-step explanation: Speed is distance/time
18/3 = 6 miles per hour running
18/2 = 9 miles per hour biking
3 hour bike = 27 miles
1.50 hour run (0.50 because 30 minutes is half of an hour) = 9 miles
27 + 9/3 + 1.50 = 36/4.5 or 8
ONLY BIG BRAIN FLOOR GANG CAN SOLVE THIS!!!!!!!!!!!!!!!!!!!!!
At their going-out-of-business sale, Bill's Bikes sold 39 bikes and had 55 left. Which equation could be used to find x, the number of bikes the store had originally?
A.
x - 55 = 39
B.
x + 39 = 55
C.
x - 39 = -55
D.
x + 55 = -39
Answer:
Its A x - 55 = 39
Step-by-step explanation:
x - 55 = 39
x = 39 + 55
x = 94
This is correct as they sold 39 and kept 55
This means they had 94 to begin with.
I hope this helps ^_^
The point (-3,2) lies on a circle whose equation is (x + 3)^2 + (y + 1 )^2 =r^2. Which of the following must be the radius of the circle?
Answer:
1. 3
2. A
Step-by-step explanation:
1. (-3+3)^2 + (2 + 1)^2 - r^2 = 0
0 + 9 - r^2 = 0
r^2 = 9
r = 3
2. 2x^2 + 4x + 2y^2 + 12y = - 6
Divide by 2.
(x^2 + 2x) + (y + 6y) = -3
Remember how to complete the square..
(b/2)^2
So...
(2/2) ^ 2 = 1
(6/2) ^ 2 = 9
(x^2 + 2x + 1) + (y^2 + 6y + 9) = -3 + 1 + 9 <--- You must remember to add whatever you add on the left to the right!
Now.. rewrite in standard form..
(x+1)^2 + (y+3)^2 = 7
Careful!! the circle equation is written as
(x - h)^2 + (y - h)^2 = r^2
Meaning that the radius is square root of 7. At center (-1, -3)
Write the equation of the line that passes through the points (−1,−6) and (−5,1). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answer:you get two answers. y+6=-7/4(x+5) or y-1=-7/4(x+5)
Step-by-step explanation:
By the way the 7/4 is negative if you could not tell. You get this answer by finding the slope which is 1- -6/-5- -1 and get -7/4. Then you plug it into the formula y-y1=slope(x-x1). When you plug it in you should get that answer.
The equation of the line that passes through the point (-1, -6) and (-5, 1) is
y = (-7/4)x - 32/4
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
The equation of a line is y = mx + c
Now,
(-1, -6) and (-5, 1)
Slope = m
m = (1 + 6) / (-5 + 1)
m = 7/-4
m = -7/4
Now,
(-1, -6) = (x, y)
-6 = (-7/4) x -1 + c
-6 = 7/4 + c
c = -6 - 7/4
c = (-24 - 7) / 4
c = -32/4
The equation of the line is y = (-7/4)x - 32/4
Thus,
The equation of the line is
y = (-7/4)x - 32/4
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Could somebody help me on this please
Answer:
right angle:-a Pythagorean theorem only works if the triangle is a right angle.
leg:- the two legs of a triangle are needed to complete the equation a²+b²=c²
hypotenuse:- too is needed to complete the equation too.
square root:- is used to simplify the equation at the end.
it was simplified by putting 169=x² in a square root.
Step-by-step explanation:
Find the volume. Use 3.14 for pie
Answer:
6782.4 m^3
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h
where r is the radius and h is the height
V = 3.14 * 12^2 * 15
= 6782.4 m^3
What mathematical operation is used with scaling/dilations?
Answer:
The scale factor, r, determines how much bigger or smaller the dilation image will be compared to the preimage. k will always be a value that is greater than 0. Center Point The center point is the center of the dilation. You use the center point to measure the distances to the preimage and the dilation image.
Step-by-step explanation:
so multiplication
pls help me with this rq
Answer:
25 inches
Step-by-step explanation:
We can use a ratio to solve
width dr height dr
------------- = ----------
width act height act
15 inches x inches
--------------- = -----------------
3 ft 5 ft
Using cross products
15*5 = 3x
Divide each side by 3
15*5 /3 = 3x/3
25 =x
Simon is cutting lengths of ribbon for an art project. He cuts a 2.7-meter ribbon, a 1.15-meter ribbon, and a 0.65-meter ribbon. What is the total amount of ribbon Simon cut?
Answer:
4.5 meters
Step-by-step explanation:
you just add them 2.7 + 1.15 = 3.85 + 0.65 + 4.5
Answer:
4.5 m
Step-by-step explanation:
2.7
+ 1.15
+ 0.65
= 4.50 meters of ribbon
Hope this helps!
Do you have a triangle with 3 angles:60 degrees,60 degrees,and 63 degrees
Answer:
No
Step-by-step explanation:
The sum of all angles in a triangle is 180°. Because 60 + 60 + 63 = 183 ≠ 180, this is not a triangle.
The sum of all angles in triangle is equeal to 180°
We need to check sum of 60, 60 and 63.
60+60+63=183
183≠180
There is no such triangle
Can someone help me with this question
Answer:
[tex]x = 2[/tex]
Step-by-step explanation:
[tex]2x + 6 = 10 \\ 2x = 10 - 6 \\ 2x = 4 \\ \frac{2x}{2} = \frac{4}{2} \\ x = 2[/tex]
Answer:
x=2
Step-by-step explanation:
2x+6 = 10
Subtract 6 from each side
2x+6-6=10-6
2x= 4
Divide by 2
2x/2 = 4/2
x = 2
fifteen darts have landed on the dart board shown. each dart scores 3,5, or 7 points. in how many different ways can the fifteen darts score a total of 75 points
Answer:
The answer is "8".
Step-by-step explanation:
Let the number are a, b, c then value is as follows:
a= 3
b= 5
c= 7
The addition of equation ⇒ a+b+c =15....................(i)
multiply by the value ⇒ 3a + 5b + 7c = 75 ...............(ii)
let b= 15-a-c which subtract from equation (ii)
equation:
⇒ 3a + 5b + 7c = 75
⇒ 3a + 5(15-a-c) + 7c = 75
⇒ 3a +75-5a-5c+7c = 75
⇒ 3a -5a-5c+7c = 75-75
⇒ -2a + 2c = 0
⇒ 2(c-a) = 0
⇒ (c-a) = 0
⇒ c=a
if we put value in between 0 to 7 from it satisfies the two equations, with c=a and b = 15 - a - c. So, the correct answer is 8.
3(x+1)+5(x+1)=64
What is x
Answer:
x=7
Step-by-step explanation:
3(x+1)+5(x+1)=64
(3+5)(x+1)=64
8(x+1)=64
8x+8=64
8x=56
x=7
Answer:
x is 3
Step-by-step explanation:
because 3×2=6+2=8×8=64
Angelika thought of a number N, multiplied it by 7 and added 9. Then she told the result Rto Lisa.
a
Write a formula that will tell you the value of R for any value of N
Answer:
R=7n+9
Step-by-step explanation:
R=(N*7)+9
R=7n+9
Answer:
7n+9
Step-by-step explanation:
Which represents where f(x)=g(x)?
Need help with this pls!!
(Show work pls)
Answer:
$12
Step-by-step explanation:
116 is the total
116 minus 24
92 divided by 8
Answer: $11.50
Step-by-step explanation:116 - 24 equals 92
and 92 / 8 equals 11.50
write the midpoint of the segment as an order pair.
Answer:
1. (3, 5)
2. (1/2, 4)
Step-by-step explanation:
To find the coordinates of the midpoint of a segment, find the average of the x-coordinates of the endpoints and the average of the y-coordinates of the endpoints.
1. (1, 2) and (5, 8)
x-coordinate of midpoint = (1 + 5)/2 = 6/2 = 3
y-coordinate of midpoint = (2 + 8)/2 = 10/2 = 5
Midpoint: (3, 5)
2. (0, 1) and (1, 7)
x-coordinate of midpoint = (0 + 1)/2 = 1/2
y-coordinate of midpoint = (1 + 7)/2 = 8/2 = 4
Midpoint: (1/2, 4)
PLEASE HELP ME!!
I don't understand.... If possible, please explain!
If ABC ≅ DCE,
Angle B = 2x + 31 and Angle E = 7x - 24
x = [?]
Answer:
The congruence statement tells you that both angle B and angle E are equal, since the triangles are identical!
Step-by-step explanation:
We want to set the equations equal to each other.
2x+31=7x-24
We need to isolate our variable, which is X.
1. Add 24 to both sides.
New Equation: 2x+55=7x
2. Subtract 2x from both sides.
New Equation: 55=5x
3. Divide by 5 from both sides so X is alone!
New Equation: x=11
Enough said! :D
The graph shows the numbers of quarts of yellow paint that must be mixed with different numbers of quarts of red paint to make a certain shade of orange paint.
Based on the graph, write an equation that shows the relationship between the number of quarts of yellow paint, y, and the number of quarts of red paint, x, needed to make the shade of orange paint.
Enter your equation in the space provided. Enter only your equation.
Answer:
y = 0.4x
Step-by-step explanation:
The graph shows that the relation is linear, so we can model this relation with a linear equation:
y = ax + b
To find the value of the parameters, we should get two points from the line and use their coordinates in the equation.
From point (0,0), we have:
0 = a*0 + b
b = 0
From point (2,5), we have:
2 = 5a + b
a = 2/5 = 0.4
So the equation we want is:
y = 0.4x
A. 625in^3
B. 25in^3
C. 125in^3
D. 5in^3
Answer:
125in^3
Step-by-step explanation:
All sides of a cube are equal
∴ vol. of cube= side³
Side = 5in
Vol= (5)³=125
∴ Volume = 125in³
A girl measures the mass of a 8 cm3 block of sugar to be a 12.9 g. What is the density of the brown sugar. Give work.
Answer:
Density: 1.6g/cm^3
Step-by-step explanation:
Density = mass/volume
Mass: 12.9g
Volume: 8cm^3
12.9/8 = 1.6125
Rounded to tenths place.
1.6 grams/cm^3
Answer:
1.61 g/cm³
Step-by-step explanation:
Density is measured as the mass divided by the volume:
d = m / v, where d is the density, m is the mass, and v is the volume
Here, our mass is 12.9 g and our volume is 8 cm cubed, so plug these in:
d = m / c
d = 12.9 g / 8 cm³
d = 1.6125 ≈ 1.61 g/cm³
The density is 1.61 g/cm³.
Simplify the expression.
[tex]\sqrt\frac{16}{15} - \frac{1}{3}[/tex]
Help please i'm getting mad because i don't understand, and again. Thank you if you answered. PLEASE HURRY!!!
Answer:
D and E are the correct answers
Step-by-step explanation:
A is false: The difference between the greatest and least weights is NOT 1/2.
B is false: 2/9 of the packages weigh 5/8 pounds...not 1/4.
C is false: You can clearly see there were more than 12 packages purchased.
D is true: 3/4 = 6/8 and there is 1 package that weighs 6/8 pounds 1 x 3=3 and there is a total of 3 packages that weigh 1 1/8 pounds.
E is true: 1/2=4/8 and the smallest amount is 5/8 pounds which is over 1/2 pound.
~ Please mark me as brainliest :)
How are polynomials with operations, like other number systems, such as whole numbers and integers?
HELP QUICK PLZZZ HURRY!!!! ILL GIVE YOU 15 POINTS
Answer:
im so confused
can u make me brainliest Step-by-step explanation:
pleaseeeeeeeeeeeeeeeee
Answer:
What do you need help with?
Step-by-step explanation:
I'm happy to help! (If I can) (Probably not but maybe)
Check the statement(s) below to ensure that distance readings are accurate.
Estimate measurements to the nearest 0.05 cm.
Start all measurements at the 1 cm mark.
Start all measurements from the corner of the ruler.
Start all measurements from the zero (0) mark.
Answer:
A and D
Step-by-step explanation:
Took test on Edg 2020 and was correct
Answer:
A: Estimate measurements to the nearest 0.05 cm.
D: Start all measurements from the zero (0) mark.
What is the volume of the right rectangular prism, in cubic inches?
12 in
Area of base = 4 sq in
cubic inches
Answer:[tex]48\ in.^3[/tex]
Step-by-step explanation:
Given
height of prism [tex]h=12\ in.[/tex]
Area of base [tex]A=4\ in.^2[/tex]
Volume of a rectangular prism
[tex]V=height\times Area[/tex]
[tex]V=12\times 4[/tex]
[tex]V=48\ in.^3[/tex]
So, volume of Prism is [tex]48\ in.^3[/tex]
Answer:
48
Step-by-step explanation:
I'm doing the quiz, hope you guys have a good day.
(*˘︶˘*).｡*♡
"What is the probability that Carol turns 64 years old given that she turns 44 years old?" Carol is a non-Hispanic black female,
Answer: 23%
Step-by-step explanation:
Answer:
to the person that answered before me, everyone would really love and explanation, not just a percentage, thanks anyways !!
good day loves !! <3
Step-by-step explanation:
but the answer is 23 %