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AleksandrR [38]
3 years ago
12

30 points. Participant A runs at a slower rate than Participant B. Both participants run at a constant rate. This table represen

ts Participant A. Time (min) 5 8 12 15 Number of laps run 2.75 4.4 6.6 8.25 Which equation could represent Participant B? Time in minutes is represented by x and number of laps run is represented by y. Select each correct answer. y = 0.3x y = 0.9x y = 0.7x y = 0.5x
Mathematics
1 answer:
Mamont248 [21]3 years ago
7 0
Participant A runs
2.75 laps in 5 minutes.
2.75/5 = 0.55 lap/minute

If x = minutes, and y = laps, then the equation for Participant A is
y = 0.55x

y = 0.3x and y = 0.5x represent a slower participant than A.

Participant A is slower than Participant B, so Participant B must run faster than Participant A.

y = 0.7x and y = 0.9x represent a faster race that y = 0.55x

Answer:
y = 0.7x
y = 0.9x
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A cube-shaped tank that measures 4.64.6 meters on each side is full of water. If some water is drained to fill a cone with a hei
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Answer:

The amount of water left in the tank is approximately 58.1 cubic meters

Step-by-step explanation:

step 1

Find the volume of the a cube shape tank

The volume is equal to

V=b^{3}

we have

b=4.6\ m

substitute

V=4.6^{3}=97.336\ m^{3}

step 2

Find the volume of cone

The volume is equal to

V=\frac{1}{3}\pi r^{2}h

we have

r=2.5\ m

h=6\ m

\pi =3.14

substitute

V=\frac{1}{3}(3.14)(2.5)^{2}(6)

V=39.25\ m^{3}

step 3

Find the difference of the volumes

97.336\ m^{3}-39.25\ m^{3}=58.1\ m^{3}

3 0
3 years ago
What is the angle of B?​
amid [387]

Answer:

31

Step-by-step explanation:

4 0
3 years ago
Samuel walks in the Labor Day parade. He walks 3 1/4 miles along the parade route and 2 5/6 miles home. How many miles does Samu
Afina-wow [57]
Find a common denominator which is 12

1*3=3   4*3=12  so 3 3/12

then 5*2=10   6*2=12     so 2 10/12

2 10/12+3 3/12= 5 13/12  

13/12= 1 1/12 plus 5= 6 1/12

so your answer would be 6 1/12
3 0
3 years ago
Read 2 more answers
Which of the following terms correctly describe the object below?
erica [24]

Answer:

a polyhedron is a three dimensional shape with flat polygonal faces, straight edges and sharp corners or vertices.

a structure whose outer surfaces are triangular and converge to a single step at the top, making the shape roughly a pyramid in the geometric sense

polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted.

solid geometry is the traditional name for the geometry of three-dimensional Euclidean space. Stereometry deals with the measurements of volumes of various solid figures including pyramids, prisms and other polyhedrons; cylinders; cones; truncated cones; and balls bounded by spheres

a solid geometric figure whose two end faces are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms.

Step-by-step explanation:

3 0
4 years ago
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Solve the system of equations using the elimination method. 1.Solve {x + 3y = -15
shutvik [7]

An equation is formed of two equal expressions. The solution is (-9,-2).

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

Given the equation x + 3y = -15 and -3x + 2y = 23,

Step 1- Multiply the equations to make the coefficients match in either the x- or y-variable.

x + 3y = -15

3x + 9y = -45

Step2- After you multiply, add or subtract the two equations.

3x + 9y -3x + 2y = -45 + 23

Step 3- Then solve for the variables that is left.

11y = -22

y = -2

Step4- Substitute the value of y in any one of equations to solve for x.

x + 3(-2) = -15

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x = -9

Hence, The solution is (-9,-2).

Learn more about Equation:

brainly.com/question/2263981

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2 years ago
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