6.Kelly has been training to run across the country. On the first day, she ran 4 miles, the
second day, she ran 12 miles, and the third day, she ran 36 miles.
a) Write an equation that models Kelly's situation?

Answers

Answer 1

Answer:

D= d₁ + d₂ + d₃   : where D is total distance covered in the training.

Step-by-step explanation:

Let this equation model the total distance covered in the training.

Let the total distance covered in the training to be: -------D

Let the distance covered in 1st day be ----------d₁ = 4 miles

Let the distance covered in 2nd day be ----------d₂= 12 miles

Let the distance covered in 3rd day be ----------d₃ = 36 miles

D= d₁ + d₂ + d₃

D= 4 + 12 + 36

D= 52 miles


Related Questions

Kate has 48 softballs. She wants to divide them evenly among b softball bags. Which expression represents how many softballs she should put into each bag?

Answers

Answer:

Softballs = (48/b)

Step-by-step explanation:

Given that,

Total number of softballs = 48

She wants to divide them evenly among b softball bags.

We need to find an expression that represents how many softballs she should put into each bag.

As it is dividing among b softball, it means we divide 48 and b. So,

[tex]s=\dfrac{48}{b}[/tex]

Hence, the required expression is (48/b).

please help me please will give brainliest

please show your work ​

Answers

Answer:

step 2

Step-by-step explanation:

When you subtract an expression from another expression, you need to distribute the (-) sign.

step 1 (6x³ + 8x² - 7x) - (2x³ - 16x² + 3x - 24)

step 2 6x³ + 8x² - 7x - 2x³ + 16x² - 3x + 24

step 3 4x³ + 24x² - 10x + 24

You had a bag of fruit snacks that you shared with 2 friends. Each of you got no fewer than 5 fruit snacks. The inequality x ÷ 3 ≥ 5 NEED ASAP
solve the inequality to find the number of fruit snacks that were in the bag

Answers

Multiply by 3 on both sides.
x _>15

Graph the equation y = -x^2+ 8x – 15 on the accompanying set of axes. You must plot 5 points including the roots and the vertex. Using the graph, determine the roots of the equation –x^2 + 8x – 15 = 0.

Answers

Answer:

Graph below

Step-by-step explanation:

Graph of the Quadratic Function

We are given the function:

[tex]y=f(x)=-x^2+8x-15[/tex]

Select 5 values of x={2,3,4,5,6}

And calculate the corresponding values of y:

[tex]f(2)=-2^2+8*2-15=-4+16-15=-3[/tex]

[tex]f(3)=-3^2+8*3-15=-9+24-15=0[/tex]

[tex]f(4)=-4^2+8*4-15=-16+32-15=1[/tex]

[tex]f(5)=-5^2+8*5-15=-25+40-15=0[/tex]

[tex]f(6)=-6^2+8*6-15=-36+48-15=-3[/tex]

We have obtained the points

(2,-3) (3,0) (4,1) (5,0) (6,-3)

Now we plot them in the graph below.

It can be noted three remarkable points:

The vertex is located at (4,1)The roots are located at (3,0) and (5,0)

The roots of the equation

[tex]-x^2+8x-15=0[/tex]

Are x=3 and x=5.

A salesperson sold a car for $15,590 and their commission is $623.60. What percentage of the sale price is their commission?

Answers

Answer:

4%

Step-by-step explanation:

623.60 deivided by 15,590= commistion

Solve the following:
A) a/5 + 3 = 8


B) 3b/7 - 1 = 5

Answers

The answer to A is 25.
The answer to B is 14!

A)

   a

———=8       :a=64

5+3  

Steps:Multiply both sides by 8

8a

     ———-=8  ·   8

      5+3

Simplify:a=64

B)

3b/7 - 1 = 5

Add 1 in both sides

3b/7 - 1 + 1 = 5 + 1

3b/7 = 6

Multiply both sides by 7 and then divide by 3.

3b/7 . 7/3 = 6 . 7/3

b = 2.7

b = 14

credits-https://brainly.com/question/12052195,math-way

Find the given trigonometric ratio in the problem below.

Answers

Answer:

cosC = 30/50

Step-by-step explanation:

Before you find cosC, you should know that:

tangent = opposite side/adjacent side

sine = opposite side/hypotenuse

cosine = adjacent side/hypotenuse

You should also know that trigonometric ratios work for only right triangles.

If cosine = adjacent side/hypotenuse, then:

cosC = 30/50

cosC = 0.6

If rounding to the nearest four decimals, it should be 0.6000.

Help me please I don't know how to solve this problem.

Answers

I believe it’s A. 12 buhhtt idddkkk I prolly did it wrong srryyyy. Thts js wht I think

2x + y = 11

3x - y = 4

Answers

Answer:

[tex]x=3,y=5[/tex]

Step-by-step explanation:

Add the equations together and solve for x.

[tex](2x + y )+ (3x - y) = 11 + 4[/tex]

[tex]5x=15[/tex]

[tex]x=3[/tex]

Use equation [tex]2x+y=11[/tex]  to solve for y.

[tex]2(3) +y=11[/tex]

[tex]6+y=11[/tex]

[tex]y=11-6[/tex]

[tex]y=5[/tex]

) Which expression is equivalent to 1/3b - 7?

Answers

Ok I uploaded a picture of the graph I hope it helps :) just click the bottoms corner


Write the equation of a line which goes through the point (0, 1) and has a slope of 2/3

Answers

Answer:

y=2/3x+1

Step-by-step explanation:

slope intercept form is y=mx+b.

slope is m, which is 2/3.

y-int is b, which is 1.

y=2/3x+1

What is the measure of x in the diagram below?


1.) 14
2.) 118
3.) 13

Answers

Answer:

8x+14=118

-14 -14

8x=104

/8 /8

x=13

answer: 13 your welcome

Answer:

13

Step-by-step explanation: 118=8x+14 bc opposite angles are equal to one another. solve for x and you get 13. hope this helps

Alexis simplified 14/42 to 1/3 by using the greatest common factor (GCF) of 14 and 42

What number did alexis use?

A. 2
B. 14
C.42
D. 84​

Answers

Answer: 14

Step-by-step explanation:


Can y’all please help me I hope you have a wonderful day and I would really appreciate if you could answer this question for me!

Answers

The answer to this question is 5

how do i find thhe greatest common factor?

Answers

List the prime factors of each number.
Multiply those factors both numbers have in common. If there are no common prime factors, the GCF is 1.

Answer:

lets say you needed to find the greates comon factor of 20 and 5, you need to find the closest number they both go into, so 20. or if it was 3 and 10 it would be 30 because it is the closest thing they both go into, i hope i am right i am so sorry if i am wrong.

Someone tell me the first hundred digits of pi

Answers

Answer:

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825  

Step-by-step explanation:

Answer: 3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679

Step-by-step explanation:

If the value of 3/4÷x is a whole number, which number is the value of x ?

Answers

Answer:

1/8

Step-by-step explanation:

1:
Segment EG is an angle bisector of angle FGH. Abraham wrote a proof to show
that triangle HEG is congruent to triangle FEG.
2
3
5
6
G
1. Side EG is congruent to side EG because they're the same segment.
2. Angle EGH is congruent to angle EGF because segment EG is an angle
bisector of angle FGH.
3. Angle H EG is congruent to angle FEG because segment EG is an angle
bisector of angle FGH.

Answers

Answer:

Angle FEG

Step-by-step explanation:

If you minus a positive number from a negative number is the diffirance a positive number, or a negative number? For example: 5 - ( -2 ) would this problem be positive negative. Also would you add or subtract because there is an negative number?

Answers

Answer:

positive + positive is negative

negative+ positive = negative ii think

Step-by-step explanation:

A triangle has one side that measures 1 foot and another side that measures 20 inches. What are possible lengths of the third side? (Select all that apply.)
6 inches
13 inches
28 inches
36 inches​

Answers

Answer:

The correct options for the possible lengths of the third side are;

13 inches

28 inches

Step-by-step explanation:

The given lengths of two sides of the triangle are;

The length of one side of the triangle = 1 foot = 12 inches

The length of the other side of the triangle = 20 inches

The question can be solved by the triangle inequality theorem as follows;

A + B > C

B + C > A

A + C > B

Let the given sides be A = 12 inches and B = 20 inches

We have;

12 + 20 = 32 > C

Therefore, by the triangle inequality theorem, the third side, 'C', is less than 32 inches

Similarly, when C = 6 inches, we have;

A + C = 12 + 6 = 18 < B = 20

Therefore, the third side cannot be 6 inches

when C = 13 inches, we have;

A + C = 12 + 13 = 25 > B = 20

Therefore, the third side can be 13 inches

when C = 28 inches, we have;

A + C = 12 + 28 = 30 > B = 20

Therefore, the third side can be 28 inches

Based on the triangle inequality theorem, the possible lengths of the third side of the triangle are: 13 inches and 28 inches.

The Triangle Inequality Theorem

The triangle inequality theorem states that, sum of the length of any two sides of a given triangle = length of the third side.

Given the measures,

1 ft = 12 iches20 inches

The possible third side must make the three set of numbers conform to the triangle inequality theorem.

Thus, for 13 inches, we have:

13 + 12 > 20; 12 + 20 > 13; 20 + 13 > 12

Also, for 28 inches, we have:

28 + 12 > 20; 12 + 20 > 28; 20 + 28 > 12

Therefore, based on the triangle inequality theorem, the possible lengths of the third side of the triangle are: 13 inches and 28 inches.

Learn more about triangle inequality theorem on:

https://brainly.com/question/26037134

Explain how to isolate the variable in the equation−2/3+7=15. solve for n

Answers

Answer:

  n = - 0.0833

Step-by-step explanation:

Given  expression

             [tex]\frac{-2}{3n } +7 = 15[/tex]

Cross multiplication , we get

           [tex]\frac{-2}{3n } = 15 -7[/tex]

          [tex]-2 = 8 X 3 n[/tex]

  ⇒   [tex]\frac{-2}{24} = n[/tex]

     n = - 0.0833

Identify the figure below. Select all names that apply.

Image shows a four-sided figure with opposite sides parallel and equal in length.

A.
quadrilateral

B.
parallelogram

C.
rhombus

D.
square

E.
trapezoid

Answers

Answer:

b and d

Step-by-step explanation:

A cylinder with a height of 6 1/2 inches (in.) and a diameter of 5 inches is shown. What is the volume of the cylinder, in cubic inches? (Use 3.14 for π.) cubic inches. Round to the nearest inch! ​

Answers

Answer:

i dont know for sure but I think it would be 0.07

Describe this number line and the numbers and fractions shown.

Answers

Answer:

Where?

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Kelly needs a gross pay of at least $945 a week to pay the bills. Her job is commission and she gets 7.5% for the first $1250 and 13% after that. How much does she need to sell a week to cover the cost of her bills?

Answers

Answer:

b and c

Step-by-step explanation:

Solve for x
9
X+4
12
2x
units

Answers

12 im almost positiveeeeee

Can someone please help me solve this (7th grade math)

Answers

Answer: 8x = 72

Step-by-step explanation:

and in case you need to go any further at any point, x = 9

8x = 72

It’s this because you are subtracting 14 from both sides so that it’s eliminated and then you can solve for x

A figure is made up of one square and one triangle. The square has a side Length of 13 feet. The triangle has a base of 13 feet and a height of 8.2 feet. What is the total area of the figure.

Answers

Im pretty sure it’s A because a squares area is base x height which would be 13x13= 169 then add the area of the triangle which would be 53.3, so 169+53.3 = 222.3

1. Name an angle complementary to ∠ BFC:

2. Name an angle complementary to ∠ AFG:

3. Name an angle that is supplementary to ∠ CFD:

4. Name an angle that is supplementary to ∠ GFE:

Answers

< CFD Bc complementary means the angles, added together, are equivalent to 90




(PLEASE HELP ME)
Which of the following equations is correct?

Please help me thank you so much!!

Answers

Answer:

B

Step-by-step explanation:

Distributive property: a*(b + c)= (a*b) + (a*c)

[tex]\frac{3}{4}*(\frac{1}{2}+\frac{-2}{5})=\frac{3}{4}*\frac{1}{2}+\frac{3}{4}*\frac{-2}{5}\\\\=\frac{3}{8}+\frac{-6}{20}\\\\=\frac{3*5}{8*5}+\frac{-6*2}{20*2}\\\\=\frac{15}{20}+\frac{-12}{40}\\\\=\frac{15-12}{40}\\\\=\frac{3}{40}[/tex]

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