Mathematics College

2. Beth, Kelly, Andrea, and Amy are all training for the
local marathon.
a. Beth can run 6.5 miles per hour. At this rate, how far will
she run in the first 3 hours of the marathon?

Answers

Answer 1

Answer:

19.5

Step-by-step explanation:

we will multiply the distance 6.5 miles per hour by 3 hours .. thenanswer is 19.5 miles

Related Questions

What is the constant of proportionality for the table below?

Answers

Answer:

38

Step-by-step explanation:

If 2 quarts of paint are needed for 75 ft of fence, how many quarts are needed for 900 ft of fence

Answers

Answer:

24 quarts

Step-by-step explanation:

1 qrt = 75/2 = 37.5

900 / 37.5 = 24

Find the average rate of change of f(x) = 2x ^ 2 - 7x from x = 2 to x = 5 Simplify your answer as much as possible .

Answers

The average rate of change for a function between two points is the slope of the secant line that contains the two points.

f(2)=2(2)^+10=18

f(5)=2(5)^+10=60

Therefore the two points are (2,18)  and (5,60)

Use the slope formula:

m=y1-y2/x1-x2

where (x1,y1) and (x2,y2) are the coordinates of the given points.

e2π+1=0

decide whether each function is linear or nonlinear from its graph

Answers

The one on the left is linear bc it’s a straight line and the one on the right is nonlinear

which of the following relationships does NOT make r || s?

Answers

UMOMMSKIAMSKAISJSKAOSJSKSAP

y is inversely proportional to x . When y = 30 , x = 3 Work out x when y = 6

Answers

Step-by-step explanation:

yx = k, where k is a real constant.

When y = 30, x = 3.

=> k = (30)(3) = 90.

Hence when y = 6, x = k/y = (90)/(6) = 15.

Is either x=9 or x=15 a solution to x-3=12?

A. x= 9 is a solution, but x =15 is not
B. they are both solutions
C. x=15 is a solution, but x=9 is not
D. neither is a solution

Answers

Answer:

It's 15

c. x=15 is a solution but x=9 is not

Step-by-step explanation:

15-3=12

9-3=6

A marathon runner's time was 2% longer Tuesday than Monday. How much time did he log on Tuesday when compared to Monday.
A. y= 1.02x
B. y=(1 - 0.2)x
C. y= 1.2x
D. y= 0.02x

Answers

Answer:

B.

Step-by-step explanation:

I just guesses

1. Who pays more money in taxes?
1)The middle class.
2)The more money you make, the more you pay in taxes.
3)The less money you make, the more you pay in taxes.
4) The poor.

Answers

the more money u make, the more taxes u have to pay

Answer:

the answer is 2

Step-by-step explanation:

Evaluate the expression when x = 3 and y = 5.

1: 2xy
2: 6y divided by x
3:4y- x
4:Y(to the power of two) -7x +2

Answers

Step-by-step explanation:

x = 3 and y = 5.

1: 2xy

2 x 3 x 5

=30

2: 6y divided by x

6 x 5 / 3

30/3

=10

3:4y- x

4 x 5 -3

20-3

=17

4:Y(to the power of two) -7x +2

5^2 -7 x 3 + 2

25-7x3+2

25-21+2

25-19

=6

3 2/5 times 3/4??

2 1/3 times 3 4/6??
​

Answers

Answer:

i have the answer for the first one,  it is 2.55. hope this helps!!

Step-by-step explanation:

a rock is thrown into a pond from a bridge above. The path the rock follows can be modeled by the equation h = - 16t^2 +44t + 12, where t is time and h is the height of the rock. Which of the following expressions is equivalent to this expression?

Answers

Ans

Step-by-step explanation:i dont know

The cost of a meal is $ 66. The sale tax rate is 8.5%. How much would the sale tax be?​

Answers

Answer: $5.61

Step-by-step explanation: 8.5% of $66

Please help with this

Answers

Answer:

B. [tex] m \angle1 + m \angle3[/tex]

D. [tex]180\degree - m \angle6[/tex]

Step-by-step explanation:

By exterior angle theorem:

[tex]m \angle4 = m \angle1 + m \angle3[/tex]

[tex]m \angle4 = 180\degree - m \angle6[/tex]

3. Baskin Robbins has a new 3-gallon container of
chocolate chip ice cream. If Baskin Robbins sold
gallon on Monday, how much of the chocolate chip
Ice cream was left at the end of the day, in gallons?
muy
Expression
3 Gallons

Answers

2 gallons were left at the end of the day

Which of the following expressions are equivalent to the one above ? Check all that apply

Answers

Answer:

B and D

Step-by-step explanation:

Answer:

B, C, D

Step-by-step explanation:

B , C , D all have value of 70

(Giving brainliest to correct answer)

Congruence

Answers

Answer:

Triangle KLM

Step-by-step explanation:

The measurements of the sides of triangle KLM and ABC match up

Answer:

the answer is MLK because MLK and ABC are the same size

Which of the following is 3x²/12x simplified?


3x/12


x/4


x/3


x²/4x

Answers

the third option is the answer

Answer:

I think it is the last one

Step-by-step explanation:

Please Help will get brainliest. click image

Answers

I do not know... I'm sorry...

Hello can someone please help me. I'll give 50 points.

How many solutions will this system of equations have?
y = -3.5x - 3.5

y = -3.5x + 3.5

Answers

No solutions

Set equations equal to each other
-3.5x - 3.5 = -3.5x + 3.5

The -3.5x on both sides of the equation cancels out, leaving

-3.5 = 3.5

But -3.5 does NOT equal 3.5, so the solution to the system of equations is false. This means that there are no solutions.

HELP ASAPP!!!!!!!!!!!!!!!!

Answers

Answer:

1st one

Step-by-step explanation:

[tex] \frac{1x}{8} + \frac{1x}{8} \\ \frac{2 x}{8} = \frac{1x}{4} [/tex]

help now plz just help plzzz

Answers

Answer:

there is no problem

Step-by-step explanation:

sorry

Tyree and four friends go to the movies. Each person buys a movie ticket for $7, a snack for $5, and a drink for $2. Write an expression for the total cost of the trip to the movies. Then find the total cost.

Answers

Answer:

Tyree and all of his friends get 1 ticket for $7. Next they all get 1 snack for $5. Then they all get a drink for $2. So:

1=7

1=5

1=2

Then you take each person (which there are five of then) and you times all five people by 7, 5, 2.

5 x 7=35

5 x 5=25

5 x 2=10

After that you add it all together:

35 plus 25=60

60 plus 10=70

Step-by-step explanation:

your welcome

Answer:

Im not sure if it ment, Tyree and four friends go to the movies. Each person buys a movie ticket for $7, a snack for $5 (meaning only one snack), and a drink for $2. (Meaning only one drink) or if it ment Tyree and four friends go to the movies. Each person buys a movie ticket for $7, a snack for $5 (meaning everyone got a snack), and a drink for $2(meaning everyone got a drink). So i did the math for both of them, if they only got 5 tickets, one snack, and one drink, it would be 42 (the math problem is 35 + 2 + 5). if they got 5 tickets, 5 snacks, and 5 drinks, it would be 70(the math problem is 35 + 25 + 10). Hope this helps!

When are two lines perpendicular?

A. when the slopes are opposites
B. when the slopes are reciprocal
C. when the slopes are negative
D. when the slopes are opposite and reciprocal​

Answers

Answer: C I think

Step-by-step explanation:

A carpenter is building a rectangular shed with a fixed perimeter of 54 ft. What are the dimensions of the largest shed that can be built? What is its area?

Answers

Answer:

the Largest shed dimension is 13.5 ft by 13.5 ft

Largest Area is 182.25 ft²

Step-by-step explanation:

Given that;

Perimeter = 54 ft

P = 2( L + B ) = 54ft

L + B = 54/2

L + B = 27 ft

B = 27 - L ------------Let this be equation 1

Area A = L × B

from equ 1, B = 27 - L

Area A = L × ( 27 - L)

A = 27L - L²

for Maxima or Minima

dA/dL = 0

27 - 2L = 0

27 = 2L

L = 13.5 ft

Now, d²A/dL² = -2 < 0

That is, area is maximum at L = 13.5 using second derivative test

B = 27 - L

we substitute vale of L

B = 27 - 13.5 = 13.5 ft

Therefore the Largest shed dimension = 13.5 ft by 13.5 ft

Largest Area = 13.5 × 13.5 = 182.25 ft²

What does a decimal between two fractions mean

Answers

Answer:

Multiplication

Step-by-step explanation:

I think what you're talking about is not a decimal, but a multiplication point:

[tex] \frac{1}{2} \: . \: \frac{3}{4} [/tex]

This dot can donate multiplication when in the middle of two numbers and/or fractions.

But if you're talking about some other point, then I don't know, sorry. :(

Answer:

multiplication

Step-by-step explanation:

I think what your talking about is not decimal but a multiplication

The product of 7 and j is 91.
Solve for j

Answers

Answer:

13

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

7j=91

x=91/7

x=13

I hope this helps

solve 3^y = 12 and
find y
​

Answers

Answer:

3^y = 12Take the logarithm of both sides of the equation to remove the variable from the exponent. Exact Form:y =  [tex]\frac{ln 12}{ln 3}\\\\\\[/tex]   = (ln 12)/(ln 3)y = 2.261


algebraic expression.

23 less than a number


plz help

Answers

Answer:

n-23

Step-by-step explanation:

hope that helps

Paralell to the line y=3x + 5 and has a y-intercept of -1

Answers

Step-by-step explanation:

Everything the parallel lines has the same slope

[tex]y = mx + b[/tex]

m = slope

b = y intercept

then the equation of the line is:

[tex]y = 3x - 1[/tex]

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