Andrea leaves Boston at 10:00 a.m. and drives to Buffalo, NY, which is 400 miles away. After 4 hours, the traffic causes Andrea to reduce her speed by 20 mph. She stops to rest for two hours, and then arrives in Buffalo at 8:00 pm What was Andrea's initial speed?

I need help on this one, I'd like to know how to do this and the correct answer. Thanks!
(HELP)

Answers

Answer 1

Answer:

60 MPH

Step-by-step explanation:


Related Questions

somebody
help me!!!
god will bless you

Answers

Answer:

2

Step-by-step explanation:

brainliest for answers

Answers

Answer:

B

Step-by-step explanation:

if this is correct can i get brainliest and i hope this helps (:

Which equations represent linear functions?
•8x – 3y = 2
•y = |x – 41-7
•y + 8 = 5(x-4)
• y=-7
•y = 6
•y=-4x* - 6

Answers

Answer:

1,3,4,5 (2 and four I can't make out what the notations are)

Step-by-step explanation:

Any equation that has a constant slope is a linear equation.

1 has a slope of 8/3

3 has a slope of 5

4 and 5 have a slope of 0

2 looks to be some form of absolute value equation and therefore is in the shape of a V and not a straight line.

6 looks to be an equation with an exponent as part of a term and will have a gradually decreasing slope (decreasing because of the negative 4)

The table shows information about all students doing GCSE's at a school.

Year 10 Year 11 Total
Girls 60 110 170
Boys 140 80 220
Total 200 190 390

What fraction of the boys are in Year 11?
Give your answer in its simplest form

Answers

Boys:80/220=4/11

Hope I helped!

A decimal that contains digits that continue forever in a pattern is called a (n) decimal

Answers

Its a repeating decimal

What is the value of t?t−122=3t2−3t=−3t=−1t = 1t = 3

Answers

No solution

There is no answer that makes the equation true.

Giving brainliest to correct answer

1/4 + 1/3 + 11/12 6/15 + 3/10 + 3/5

4/5 + 3/15 - 2/3 4 2/5 + 5 2/6

Answers

Step-by-step explanation:

0 = 0 = 0 = 0 = 0 = 0 = 0 < 3/

15

< 1/

4

< 3/

10

< 1/

3

< 6/

15

< 3/

5

< 4/

5

< 11/

12

< 4 2/

5

< 5 2/

6

0 is equal to 0 is equal to 0 is equal to 0 is equal to 0 is equal to 0 is equal to 0 is less than 3/

15

is less than 1/

4

is less than 3/

10

is less than 1/

3

is less than 6/

15

is less than 3/

5

is less than 4/

5

is less than 11/

12

is less than 4 2/

5

is less than 5 2/

6

0/

60

= 0/

60

= 0/

60

= 0/

60

= 0/

60

= 0/

60

= 0/

60

< 12/

60

< 15/

60

< 18/

60

< 20/

60

< 24/

60

< 36/

60

< 48/

60

< 55/

60

< 264/

60

< 320/

60

Step-by-step explanation:

[tex]6 \frac{2}{5} [/tex]

Engineers are draining a water reservoir until its depth is only 10 feet. The depth decreases exponentially as
shown in the graph below. The engineers measure the depth after 1 hour to be 64 feet and after 4 hours to be
28 feet. Develop an exponential equation in y=a(6)" to predict the depth as a function of hours draining.
Round a to the nearest integer and b to the nearest hundredth. Then, graph the horizontal line y = 10 and
find its intersection to determine the time, to the nearest tenth of an hour, when the reservoir will reach a
depth of 10 feet.

Answers

The draining of the reservoir follows an exponential function

The reservoir will reach a  depth of 10 feet at 7.6 hour

The given parameters are:

[tex]\mathbf{(x,y) = (1,64)(4,28)}[/tex]

An exponential equation is represented as:

[tex]\mathbf{y = ab^x}[/tex]

Substitute [tex]\mathbf{(x,y) = (1,64)(4,28)}[/tex] in [tex]\mathbf{y = ab^x}[/tex]

[tex]\mathbf{64 = ab^1}[/tex]

[tex]\mathbf{64 = ab}[/tex]

[tex]\mathbf{28 = ab^4}[/tex]

Divide [tex]\mathbf{64 = ab}[/tex] and [tex]\mathbf{28 = ab^4}[/tex]

[tex]\mathbf{\frac{ab^4}{ab} = \frac{28}{64}}[/tex]

[tex]\mathbf{b^3 = 0.4375}[/tex]

Take cube roots

[tex]\mathbf{b= 0.76}[/tex]

Substitute [tex]\mathbf{b= 0.76}[/tex] in [tex]\mathbf{64 = ab}[/tex]

[tex]\mathbf{64 = 0.76a}[/tex]

Solve for a

[tex]\mathbf{a = 84}[/tex]

So, the equation is:

[tex]\mathbf{y = 84(0.76)^x}[/tex]

See attachment for the graphs of [tex]\mathbf{y = 84(0.76)^x}[/tex] and y = 10

The point of intersection is: x = 7.6

Hence, the reservoir will reach a  depth of 10 feet at 7.6 hour

Read more about exponential functions at:

https://brainly.com/question/15352175

At the basketball game, Leo scored points in 30% of his attempts. Which of the following statements is true?

A- Leo scored points in more than 1/3 of his attempts.
B- Leo scored points in 1/4 of his attempts.
C- Leo scored points in 3/10 of his attempts,
D- Leo scored points in less than 1/6 of his attempts.

THIS IS FOR A TEST, PLEASE HELP

Answers

Answer:

2/3

Step-by-step explanation:

irdk

It’s c because if you add a 0 to 3 and the 10 it’s makes it 30/100 so 3 is 30% of 10

What is the slope of the line?

Answers

It’s 2/1 because it’s rise over run

Answer:

The slope of this line is 2.

Step-by-step explanation:

The slope of a line can be calculated using the formula (y1 - y2) / (x1 - x2).

We take two points from the line. I took the points (0, -3) and (2, 1).

Now we plug in the coordinates into the formula. (-3 - 1) / (0 - 2).

This simplifies to -4 / -2 which is equal to 2.  

Solve the equation
3x²-17x+10=0

Answers

Answer:

(3x-2) (x-5)

Step-by-step explanation:

30 = -15 X -2

-17 = -15 + -12

3x2 - 15x - 2x +10

factorise

3x(x-5) - 2(x-5)

(3x-2) (x-5)

what are the factor of 25
A.2,4,6,8,10
B.5,10,15,20,25
C.1,5,5
D.3,6,9​

Answers

ANSWER: 1,5 and 25
It’s not in the answers given above
25 can be divided by 5 and 5, and of course 1, so it’s c

what is the importance of derivative classification?

Answers

Answer:

Classifying information helps to protect our national security

#Brainly lovers

The importance of derivative classification lies in its role in safeguarding sensitive information and ensuring national security. Derivative classification involves the process of determining the level of classification of information that is derived from a primary source.

what is the importance of derivative classification?

Derivative classification is an essential aspect of information security and classification systems. It involves assigning the appropriate level of classification to information that is derived from a primary classified source. This process ensures that the derived information is protected and handled with the same level of care as its source material.

The importance of derivative classification lies in several key factors. Firstly, it helps prevent unauthorized disclosure of sensitive information. By classifying derived information, access to it can be controlled, limiting its availability to individuals with appropriate security clearances. This restriction ensures that only authorized personnel can access and handle the information, reducing the risk of it falling into the wrong hands.

Derivative classification promotes information sharing within authorized channels. When information is properly classified, it can be shared securely among individuals or organizations that have the necessary clearances. This controlled sharing allows for effective collaboration and coordination among different entities while maintaining the confidentiality of the information.

Read more about derivative classification here: https://brainly.com/question/18383880

#SPJ6

Help please and thank you

Answers

Answer:

a

Step-by-step explanation:

a triangle has 180 degrees in total

so adding the angles altogether we get 180

set the equation up like this

6x + 3 + 75 + 60 = 180

and then combine like terms

6x + 138 = 180

then subtract

6x = 42

and then finally divide

x = 7

Answer:

A) 7

Step-by-step explanation:

180-60=120

120-75= 45

45-3=42

42/6= 7

A) 7

15.7 x 102 = ___

1.57
15.7
157
1,570

Answers

1,570 is the answer to this very specific math problem

[tex]15.7 \times 102 = 157[/tex]

Richard has 650 kilograms of candy bag then Ming has 137 kilograms. What is the total mass is the candy bag?

Answers

Answer:

787 kg

Step-by-step explanation:

Cann someone please help??

Answers

option 1 is correct [5root2]

Answer:

It can be simplified to 5√2

Step-by-step explanation:

express the question below as function of angle less than 45°
[tex]cot330 [/tex]

step by step plzzz

Answers

you would have to divide all your sides by the variable and that will give you your answer

A recipe for pasta noodles calls for 12 eggs for every 8 cups of flour. How many eggs are needed when 2 cups of flour are used?

Answers

Answer:

3 eggs

Step-by-step explanation:

12/8 = 1.5 eggs per cup of flour and so, multiplied by 2, 3 eggs.

14. What is 7/4 as a mixed number?
A. 1 3/4
B. 1 7/4
c. 1 1/4
D. 3/4

Answers

Answer:

A

Step-by-step explanation:

7/4 means you have one whole 1 and 3 left over

Answer:

A

Step-by-step explanation:

7/4 as a mixed number can be written as 1 3/4.

What is the mean of a set of data?

Answers

The mean set of the data is the average, you find it by adding all the numbers up then dividing it by the amount of numbers added.

5/3n-17=3n-25solve the equation

Answers

Answer:

n= 6

Step-by-step explanation:

Solve for n by simplifying both sides of the equation, then isolating the variable.

The functions f(x) and g(x) are shown on the graph. fx) = x² What is g(x)? 10- y (f(x) 5 X >> 10 10 5 5 -5-+ g(x) -10 O A. g(x) = (-x)2 - 2 O B. g(x) = -x2 - 2 --- O c. g(x) = -x2 + 2 O D. g(x) = (- x)2 + 2​

Answers

Answer:

C

Step-by-step explanation:

i hoped i did something

The value of g(x) will be -x² + 2 so option (C) will be correct.

What is a function?

A certain kind of relationship called a function binds inputs to essentially one output.

A function can be regarded as a computer, which is helpful.

The machine will only accept specified inputs, described as the function's domain, and will potentially produce one output for each input.

In other words, the function is a relationship between variables, and the nature of the relationship defines the function for example y = sinx and y = x +6 like that.

Given,

f(x) = x²

g(x) = shifts graph downward by 2 units and reflected down.

Now,

The value of f(x) for positive x will be positive

But the value of g(x) for positive x is negative and 2 units shifted downward.

So it should be -x² - 2.

Hence"The value of g(x) will be -x² + 2 so option (C) will be correct".

For more about the function,

brainly.com/question/23712366

#SPJ5

If lines l and m are parallel find the value of X

Answers

X=24

See the picture below

175 calories in 12 oz

Answers

Answer:

The answer is 14.58

Step-by-step explanation:

Please mark brainliest and hope this helps!

Answer:

Unit rate is 14.58 cal/oz.

Given:

total calories = 175

total ounces = 12

Simply divide the total number of calories by the total number of ounces to get the unit rate of calories per ounce.

175 calories ÷ 12 ounces = 14.58 calories per ounce.

Step-by-step explanation:

NEED ANSWER ASAP!!!!!!!!
Find the slope from the following points:
(-4,2) (1,8)


-3/6
5/6
6/-3
6/5

Answers

8-2/1-(-4)=6/5. the correct answer is 6/5.

What triangle congruence theorem could be used to prove that these triangles are congruent?

Answers

Answer:

side angle side theorem

Step-by-step explanation:

One fifth of the earths atmosphere is oxygen. What fraction is not oxygen?

Answers

Answer:4/5ths hope this helped hunny boo!✨

Which is the net for this triangular prism?
1

Answers

Answer:

The first one

Step-by-step explanation:

I think, because if you fold it, it will form the shape.

Which expressions are equivalent to this expression?

4x + 4

Select each correct answer.


2(2x+2)

4(x+4)

x + 3x + 4

2x + 1 + 2x + 3

Answers

Answer:

4(x+4)

Step-by-step explanation:

Answer:

2 ( 2x + 2 )

Step-by-step explanation:

4x = 2x * 2

4 = 2 * 2

4x + 4

= 2x * 2 + 2 * 2

= 2 ( 2x + 2 )

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