Juan spent 1 1/2 hours working on a project on Monday, 2 hours on Tuesday, and 2 3/4 hours on Thursday. How many hours did it take him to finish the project?​

Answers

Answer 1

Answer:

Monday hours        +    Thursday hours         =      Total hours

            1 1/2                 +        2 3/4                   =       3 +    (? how do you add 1/2+3/4)

 Now, you could convert to all improper fractions:

               3/2                 +        11/4

               6/4                 +         11/4               [4 is the Least Common Multiple of 2 and 4]

                           17/4

                           4 1/4                                   [then back to mixed numbers]

 Or. you could add 1+2=3

     and    1/2  +  3/4

              2/4   +  3/4

                    5/4

                 1 1/4        [convert to mixed number]

         3 + 1 1/4  = 4 1/4        [remember to add the 3]

Step-by-step explanation:


Related Questions

find the square root of 14+6√5​

Answers

Answer:

3 + √5

Step-by-step explanation:

Find the square root of 14+6√5​

Change to √ ( 14 + 6√5 ) = √x + √y

1️⃣ Square.

14 + 6√5 = x + y + 2√xy

14 + 2√45 = ( x + y) + 2√xy

2️⃣ Compare.

(x + y) = 14

xy = 45

3️⃣ Solve.

(x - y)² = (x+y)² - 4xy

( x - y)² = 14² - 180

( x - y)² = 196 - 180

( x - y)² = 16

( x - y) = 4

x + y = 14

x - y = 4

2x = 18

x = 9 .

y = 5 .

14 + 6√5 = √9 + √5 = 3 + √5 .

Answer: 3 + √5 .

Done ✔

Jackie correctly solved this equation:
4/x-2+1/x^2-4=1/x+2
Which statement describes the solutions she found?

Answers

Answer:

answer is A

Step-by-step explanation:

took the test :)

The option (A) she found one valid solution and no extraneous solution is correct, and x = -11/3 or -3.66.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

We have the equation:

[tex]\rm \dfrac{4}{x-2}+\dfrac{1}{x^2-4}=\dfrac{1}{x+2}[/tex]

After taking LCM

4x + 9 = x - 2

x = -11/3

or

x = -3.66

Thus, option (A) she found one valid solution and no extraneous solution is correct, and x = -11/3 or -3.66.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ2

Factorise
3ab + 3a + 2b + 2​

Answers

Answer:

3ab + 3a + 2b + 2

3a(b+1)+2(b+1)

(b+1)(3a+2)

Find the solution of the system of equations. -3x – 2y = 36 3х – 5y = 6​

Answers

Answer:

y = -6

x = -8

Step-by-step explanation:

I hope you can read my handwriting.

Have a wonderful day!

In ΔTUV, the measure of ∠V=90°, the measure of ∠T=52°, and UV = 7 feet. Find the length of VT to the nearest tenth of a foot.

Answers

Answer:

5.5 feet

Step-by-step explanation:

Answer:

5.5 feet

Step-by-step explanation:

We have VT adjacent to angle T.

We know that VU, side length that is opposite to T, is 7.

We use the TAN function, which is opposite/adjacent, on T :)

tan(52) = 7/x

x tan(52) = 7

x = 7/tan(52) =~ that's around 5.469 --> 5.5 feet

YAS

find an equation for the nth term of a geometric sequence where the second and fifth terms are -8 and 512

Answers

Answer:

[tex]n_x = -4n_{x-1}\\[/tex]

where [tex]n_1[/tex] = 2

Step-by-step explanation:

512/-8 = -64

difference of n = 3

[tex]\sqrt[3]{64} = 4[/tex]

[tex]n_x = -4n_{x-1}\\[/tex]

where [tex]n_1[/tex] = 2

2 more help !!!!!!!!

Answers

12 units thanks have a great day

gamitin ang alin man sa mga digit na ito 0 3 6 at 7 bumuo ng tig dalawang 2 digit na bilang at three digit na bilang divide ang mga bilang na nabuo sa mga bilang na nasa hanay ng divisor at isulat ang sagot sa hanay ng quotient

Dividend Divisor Quotient
7
9​

Answers

Answer: gamitin ang alin man sa mga digit na ito 0 3 6 at 7 bumuo ng tig dalawang 2 digit na bilang at three digit na bilang divide ang mga bilang na nabuo sa mga bilang na nasa hanay ng divisor at isulat ang sagot sa hanay ng quotient

Step-by-step explanation:

(a) Mary and Cynthia were building a cone-shaped sand castle. After some time, the diameter of
the sand shaped cone was 14 in. and the height was 15 in. What is the appoximate volume of the
sand cone rounded to the nearest tenth? (Show work!!) PLEASE HELP!

Answers

Answer:

[tex]\displaystyle V\approx 769.7\text{ in}^3[/tex]

Step-by-step explanation:

We are given that the diameter of the sand-shaped cone is 14 inches, and the height is 15 inches.

The volume for a cone is given by:

[tex]\displaystyle V=\frac{1}{3}\pi r^2h[/tex]

Where r is the radius and h is the height.

Since the diameter is 14, the radius is 7.

And we are given that the height is 15.

Therefore, the volume will be:

[tex]\displaystyle V=\frac{1}{3}\pi (7)^2(15)[/tex]

Use a calculator:

[tex]\displaystyle V\approx 769.7\text{ in}^3[/tex]

The volume of the cone is approximately 769.7 cubic inches.

Mark wants to paint a mural He has 1 1/8 gallons of yellow and 7/8 of blue. Mark plans to use 3/4 gallon of each paint color. How many gallons of paint will he have left over after painting the mural?

Answers

Answer:

1/4 gallon of yellow of paint and none of the blue paint

Step-by-step explanation:

If you make a batch of cookies and your sister eats 10% of them, what percent remains?

Answers

Answer:

I love cookies

Step-by-step explanation:

Answer:

90%

Step-by-step explanation:

1 batch would be the same as 100%

So, 100%-10%=90%

Hope I helped you!!!!!

.nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

Answers

Answer: What is this free?

Answer:

yes

Step-by-step explanation:

yes+yes(no-no)

=yes

1. Exercise 18, section 3.1. Let D be the set of all students at your school and let M(s) be "s is a math major", let C(s) be "s is a computer science major" and let E(s) be "s is an engineering major". Express each of the following statements using quantifiers, variables and the predicates M(s), C(s), E(s). a. Every computer science student is an engineering student b. No computer science students are engineering students c. Some computer science students are also math majors.

Answers

Answer:

∀s ∈ D, C(s) - - - > E(s)

∀s ∈ D, C(s) - - - > ~ E(s)

∃s ∈ D such that M(s) ∧ C(s)

Step-by-step explanation:

D = set of all students

M(s) = s math major

C(s) = s Computer science major

E(s) = s Engineering major

Expressing the following using quantifies variables and predicates :

A.) Every computer science student is an engineering student

∀s ∈ D, C(s) - - - > E(s)

b. No computer science students are engineering students

∀s ∈ D, C(s) - - - > ~ E(s)

c. Some computer science students are also math majors

∃s ∈ D such that M(s) ∧ C(s)

∃s = Existential Domain

∀s = universal

∧ = connective and

~ = not

∈ = belongs to

What is (1.2 x 10^-5) / 4 in scientific notation??

Answers

Answer:

3×[tex]10^{-6}[/tex]

Step-by-step explanation:

Hope it helps ;)

Answer:

3x10^-6

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. The sign of the exponent will depend on the direction you are moving the decimal.

I will give brainliest. any irrelevant awnsers will be flagged :). pls help.

Answers

Answer:

it is B

Step-by-step explanation:

hope it helps :) have a nice day!

PLEASE HELP WILL GIVE BRAINLIEST "Find the value of f, correct to two decimal places."

Answers

Answer:

5.93 is the answer....

Hope it helps!!!

• Which graph represents the inequality 3 > 15?

Answers

Answer:

The second one

Step-by-step explanation:

Kali runs 20 laps around the track each day.Each lap around the track is 400 meters. How many days will it take kali to run a total or 12 kilometers?

Answers

Answer:

Step-by-step Explanation:

Answer:

1 and a half days

Step-by-step explanation:

400 meters x 20 laps = 8000 meters

12 kilometers - 12000 meters

1day- 8000 meters

12000 meters-8000 meters= 4000 meters

8000÷4000=2

1 day and a half

Which of the following are dependent events? Select all that apply.

You draw a marble from a bag, replace it, and draw again.
You flip a coin and roll a number cube.
You draw two numbers from 1 to 10 from a hat without replacing them first.
You randomly choose two socks from a drawer, hoping they will match.

Answers

Answer: all

Step-by-step explanation:

Answer: You randomly choose two socks from a drawer, hoping they will match.

You draw two numbers from 1 to 10 from a hat without replacing them first.

Step-by-step explanation:

dependent events: compound events in which one event affects the likelihood of the other event

independent events:compound events in which one event does not affect the likelihood of the other event

Siobhan makes jewelry to sell online and wants to
charge prices comparable to other similar listings.
What is Siobhan's hourly wage if it takes her
2.5 hours to make each piece of jewelry? Enter your
answer as a whole number, such as: 14.
Cost of supplies
$6.50
Seller fees
12% of selling price
Average price of similar listings
$80
Sales tax
8% of selling price
2.5
6,50

Answers

Answer:

23

Step-by-step explanation:

Which graph shows a linear function?

Answers

Answer:

None of the above...

Step-by-step explanation:

The first one is a cubic function and the v-shaped one is an absolute value function.

Answer:

It is the 2nd graph. The graph that passes through x=3 and y=3.

Step-by-step explanation:

Solve and show work please! Help is appreciated ♥️

Answers

Answer:

16 pi

Step-by-step explanation:

Since 2r is the circumference and the radius is 8, it's 8 x 2 which gives you 16. You don't need to add in the pi since they already gave you at the options.

The diagram shows the repairs preformed on two types of cars. Compare the car types using the median or mean.

Answers

Answer:

there is no diagram

Step-by-step explanation:

you will need to edit this question so that way we can see the diagram

Answer:

The median is the same for both car types, but Bandits have the lower mean.

Step-by-step explanation:

I took the Iready quiz and got the question right. Hope this helps!

The number of siblings a student has and the grades they have in math class.
A.
Positive correlation
B.
Negative correlation
C.
No correlation

Answers

It has no correlation so C.


Please anyone see if I did this correct let me know the missing number for the bottom part. I upload it

Answers

Answer:

you got it!

Step-by-step explanation:

Answer:

You did do it correct!

For questions 21 and 22 is their a certain way you have to fill in the missing numbers?

I would do...

21. 2 and 5

22. 10 and 10

I am not sure though if there is a correct way to answer those two questions.

Step-by-step explanation:

Please help me out on this questionnnnn

Answers

Answer:

20 cubic feet.

From feet: length (ft) × width (ft) × height (ft) = cubic feet.

From inches: length (in) × width (in) × height (in) ÷ 1728 = cubic feet.

From yards: length (yd) × width (yd) × height (yd) × 27 = cubic feet.

If you need to convert to cubic feet from inches: divide the final number (i.e. the total you get after multiplying the three dimensions together

PLEASE I NEED HELP THIS NEEDS TO GET DONE SOON AND IM STUCK):

Question 2 Multiple Choice Worth 2 points) (06.03) For the expression y + 6 - 3, determine the coefficient for the variable term 1 06​

Answers

Answer:

1

Step-by-step explanation:

whenever there is a varible alone the coefficient is 1

The length of ZX is 2 units.


What is the perimeter of triangle XYZ?

Answers

Answer:

5+3 square root of 5 units

A pool can be filled by one pipe in 8 hours and by a second pipe in 9 hours. How long will it take using both pipes to fill the​ pool?

Answers

Given that it would take 4 hours for first pipe to fill half, and 4.5 hours to fill half with other pipe u would then do 4+4.5=8.5, then 8.5/2=4.25

Can u tell me how to do step by step using pemdas please

Answers

Answer:

24

Step-by-step explanation:

PEMDAS is an acronym for the order of operations.

P: Paranthesis

E: Exponents

M: Multiplicating

D: Division

A: Addition

S = Subtraction

(Note that division and multiplication are in the same "stage" and don't take priority over one another.)

10 + 4 / 2 x (5 - 1 + 3)10 + 4 / 2 x 710 + 2 x 710 + 1424

Answer:

Step-by-step explanation:

you want to know the precedence of order.

the P is parenthesis... do those 1st

/ = this is also a divide sign

10 + 4 ÷ 2 x (5 - 1 + 3 )  ( go left to right, as if reading inside parenthesis )

10 + 4 ÷ 2 x (7)    now to multiplication and division going left to right again)

10 + 2 x7    

10 + 14

24

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