Mathematics College


Last night, Hailey spent 1 2/5 hours on her math
homework, then 45 minutes on her science
homework. What is the total time she spent doing her
math and science homework? Write your answer in a
complete sentence.

Answers

Answer 1

Answer:

a = 2 hours and 9 minutes

Explanation:

(using fractions)

45 minutes + 1 2/5 hours = 3/4 hours + 7/5 hours = 15/20 + 28/20 = 43/20 = 2 3/20 = 2 9 /60 = 2 hours 9 minutes.

(using decimals)

45 minutes + 1 2/5 hours =

0.75 hours + 1.4 hours = 2.15 hours = 2 hours 9 minutes.

since .15 × 60 = 9 .

Also keep in mind that there are 60 minutes in an hour.

Answer 2

Answer:2 3/20

Step-by-step explanation:

1 2/5 + 45(3/4)

=2 3/20

Related Questions

Why can't a whole number be irrational? Please dumb it down for me

Answers

Answer and Step-by-step explanation:

A whole number isn't irrational because it is a whole number. Confused? Most likely.

A whole number is any of the numbers {0, 1, 2, 3, ...} etc. There is no fractional or decimal part. And no negatives. Example: 5, 49 and 980 are all whole numbers.

An Irrational Number is a real number that cannot be written as a simple fraction. Irrational means not Rational. The irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers.

These are both real numbers because they don't go through the 4th wall (of science/math)

Imaginary numbers would use i.

write an equation for the line below​

Answers

Answer:

y = -X + 4 is the equation for the line below

What are the possible degrees for the polynomial function?
degrees of 6 or greater
even degrees of 6 or greater
degrees of 5 or greater
odd degrees of 5 or greater

Answers

Answer:b

Step-by-step explanation:on edge2020

How many significant figures are in the number: 800

Answers

Answer:

1

Step-by-step explanation:

The zeros after 8 are not significant.

HELPPS PLEASE FOR BRIANILIST

Answers

0.80¢ answer i’m pretty sure

Mr. Martin bought a microwave that was originally priced at $225. Using a coupon, he received a 30% discount on the microwave. What is the total price Mr. Martin will pay at the register if there is a 6% sales tax. Round your answer to the nearest cent if necessary.

Answers

Answer: 125 I think

Step-by-step explanation:

Find DF
D
20
E 10 F
DF =

Answers

Answer:

30

Step-by-step explanation:

it is right

it’s 30!

bc DE is 20 and EF is 10, if DF is the entire segment, then you would add 20 & 10, to get 30.

Find the reciprocal of 10 1/2!​

Answers

Answer:

2/21

Step-by-step explanation:

10 1/2=21/2 and then flip it

the answer is you put it in a improper fraction 21/2 and then flip it to 2/21 and 2/21 is your answer

Heather bought a shirt on sale for 45% off the regular price of $22.60. What was the sale price of the shirt not including tax?

Answers

Hi! I believe your answer is $10.17 because 45% of 22.60 is 10.17. I hope this helps you! Good luck and have a great day. ❤️ (Stream "Heather" by Conan Gray!)

The length of a new rectangular playing field is 2 yards longer then double the width. If the perimeter of the rectangular playing field is 322 yards, what are its dimensions?

Answers

Answer:

Step-by-step explanation:

First, we want to take the information we have and turn it into an equation, where x is our unknown dimension. For this problem, it would be better if x was equal to the width.

Let's  write out the equation:

X is the width, 2x + 2 is the length, and we are multiplying both by two since there are two sides of the field. It will all equal to 322, because that is the perimeter.

2*x + 2(2x +2) = 322

Now, let's solve:

2*x + 2(2x + 2) = 322

2x + 4x + 4 = 322

6x + 4 = 322

6x = 318

x = 318 ÷ 6

x = 53

The width is 53 yards. To find the length, we multiply 53 by two and add two.

53 * 2 + 2 = 106 + 2 = 108 yards, as the length

Keith bought 8 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 30 cards left. How many cards did Keith start with?
please help!!!

Answers

Answer:

52 cards

Step-by-step explanation:

call the amount he started with " x "

then he bought 8 cards

so the new equation is

x+8

then he lost half of his cards

so now the equation is

(x + 8 )/2

that amount to 30 cards as per what is given in the problem

so now the equation is

( x + 8 )/2 = 30

solve using inverse operations and simplifying

( x + 8 )/2 = 30  

         *2    *2

x + 8 = 60

   -8     -8

x = 52

Order the following from least to greatest.
0.67,6.7%, 6/7

Answers

Answer:

from least to greatest.= 6.7%, 0.67, 6/7

Answer: 6.7%, 0.67, 6/7

Step-by-step explanation:

6.7% is less than 0.67.

0.67 is less than 6/7.

So, the order is 6.7%, 0.67, and 6/7.

determine the slope of the line given this two points (-2,4) and (1,6) with solution

Answers

Answer:

Slope = y2 - y1/x2 - x1

Slope = 6-4 / 1--2

Slope = 2/3

Step-by-step explanation:

hope that will help you

The slope of the line will be 2/3.

The formula for the slope will be:

= (y2 - y1) / (x2 - x1)

where,

y2 = 6

y1 = 4

x2 = 1

x1 = -2

We will slot the values into the equation which will be:

= (y2 - y1) / (x2 - x1)

= (6-4) / (1- -2)

= 2/(1+2)

= 2/3

Therefore, the slope is 2/3.

Read related link on:

https://brainly.com/question/24645618

At this point I’m just going to start singing songs ! For the caption

Answers

Answer:

[tex]the \: value \: is \:0.5 \: i.e\: option\:b[/tex]

Answer:

.50

Step-by-step explanation:

I am pretty sure

(9, - 4) and (5, 3) In simplest radical form

Answers

Answer: 33

Step-by-step explanation:

(9,-4) and (5,3)

=9*5+(-4)*3

=33

Tim had $150 to spend on 3 pairs of pants. After buying them, he had $30 left over. What equation expresses how much each pair of pants cost?

Answers

Answer:

Step-by-step explanation:

3x+30=150

its 120 then divide by 3 which is 40

Rewrite the following equation in slope-intercept form.
17x + 18y = -6

Answers

Answer:

y= -17/18x-1/3

Step-by-step explanation:

The slope-intercept form of the equation is y = (-17/18)x -1/3.

What is linear equation?

Equations whose variables have a power of one are called linear equations. One example with one variable is where ax+b = 0, where a and b are real values and x is the variable.

Given:

A linear equation 17x + 18y = -6.

To find the slope-intercept form:

Simplifying,

17x + 18y = -6

18y = -6 -17x

y = -17/18x -1/3

Therefore, y = (-17/18)x -1/3 is the slope-intercept form.

To learn more about the linear equation;

https://brainly.com/question/29739212

#SPJ2

There is a sidewalk of width x around a rectangular garden. If the garden measures twenty-feet by thirty-feet, then the combined area of the garden and sidewalk is

Answers

Answer:

Area = 200 + 50 + x

Step-by-step explanation:

Given

Length = 20

Width = 30

Side Walk = x

Required

Determine the area.

To do this we need to get the new worth and length by adding the length of the sidewalk.

This gives:

Length = 20 + x.

Width = 30 + x

So, area becomes.

Area = (20 + x)(30 + x)

Area = 600 + 20x + 30x + x²

Area = 200 + 50 + x²

Which is equal to –214°?

Answers

Answer:

B

Step-by-step explanation:

Convert from degrees to radians using ratio pi/180. -107pi/90 radians would be the answer. Also edg. 2020

-107pi/90 radians is equal to -214degree.

We have to determine which is equal to –214°

Convert from degrees to radians using the ratio.

How to convert a degree into a radian?

To convert the value of the angle in degree, to its equivalent radians, we need to multiply the given value by π/180.

pi/180.

-107pi/90 radians is equal to -214degree

To learn more about the angle visit:

https://brainly.com/question/25716982

#SPJ2

Please solve this system : x+y+z=-3 3y-z+\=4 2x-y-2z=-5

Answers

the solution is x=-3, y=1, z=-1

hello please help will give brainliest!

Answers

Answer:

420

Step-by-step explanation:

Answer:

A. 420

Step-by-step explanation:

nice

841/4 how much is it

Answers

Answer:

210.25

Step-by-step explanation:

841/4=210.25


Which phrase matches the algebraic expression below? (1 point)
3(x + 7) + 10

Answers

Answer:

Add 10 to three times  the value of x minus 7.

Step-by-step explanation:

Answer:

Three times the difference of X and seven plus ten

Step-by-step explanation:

answer 2 questions about equations A and B.
A. 5=-2(x-1)
B. 5=-2x+2
1. how can we get equation B from equation A?
A. rewrite one side (or both) by combining like terms
B. rewrite one side (or both) using distributive property
C. multiply or divide both sides by the same non zero constant.
D. multiply or divide both sides by the same variable expression.
2. based on the previous answer, are the questions equivalent? in other words do they have the same solution?
Yes or No​

Answers

Answer:

B.

Step-by-step explanation:

I'm not sure how to answer the 2. question

can i have 300mn + 500mn =_________________________________________________________________________________________________i need help

Answers

Answer:

yes it would be 800mn

Step-by-step explanation:

Find the difference: 4.203 - 0.01

Answers

Answer:

4.193

Step-by-step explanation:

you line up the decimals then subtract to get 4.193

Can you help me find abcd please

Answers

Answer:

A.2 B.4 C.3 D.4 E.6

Step-by-step explanation:

1/2 ÷ 3/4 = 1/2 x 4/3 (flip 3/4 and keep 1/2)

If you multiply 1/2 x 4/3 you will get 4/6.

in 2009,Alaska suffered an earthquake of magnitude m=7.1. find the intensity of that earthquake​

Answers

Answer:

Here you go :)

7.0 to 7.9 Major earthquake. Serious damage. 20

Or

Major 7 - 7.9

________

Answered by James

Step-by-step explanation:

If you lower your monthly payment, do you think the total interest you pay will increase or decrease? Why?

Answers

Answer:

increase

Step-by-step explanation:

Once Your Monthly Payment Has Been Lowered, More People Will Be Interested Do To Its Lower Payment.

I need help ASAP with this question

Answers

So the rate of change is the same as the gradient, or the slope.
To work out this you need to do the change in y/ the change in x.
So we take 2 points you are given in the table- e.g (1,5) and (2,1)
So the change in y is from 5 to 1 so it is -4 and the change in x is from 1 to 2 so is 1.

Then you have -4/1 which is just -4.

Let me know if you have any questions!
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