Nancy can do a typing job in 8 hours, when Carole helps her, they can do the job in 5 hours. How many hours would it take Carole to do it alone

Answers

Answer 1

Answer: [tex]\frac{40}{3}\ \text{hours}[/tex]

Step-by-step explanation:

Nancy can do typing job in 8 hours

i.e. in 1-hour nancy can  [tex]\frac{1}{8}[/tex] part of work

Together they can do that work in 5 hours

or in 1 hour [tex]\frac{1}{5}[/tex] part of work is done

suppose Carole takes x hours for the work

so, in 1 hour [tex]\frac{1}{x}[/tex] part is done

If both work together for 1 hour then we can write

[tex]\frac{1}{8}+\frac{1}{x}=\frac{1}{5}[/tex]

[tex]\frac{1}{x}=\frac{1}{5}-\frac{1}{8}[/tex]

[tex]x=\frac{40}{3}\ \text{hours}[/tex]


Related Questions

Of the students at Milton Middle School, 88 are girls. If 40% of the students are girls, how many total students are there at Milton Middle school?

Answers

Answer:

220

Step-by-step explanation:

To find these types of answers use a calculator my friend. 'Tis so easy, just do

*88/.4 = 220

*must divide to multiply and 44% = .44 =)

Tim's house has a taxable value of $ 149 , 000 . Tim's property tax rate is 0.28 % . How much will Tim have to pay in property taxes?

Answers

Answer:

$41,720

Step-by-step explanation:

please help me please will give brainliest to anyone ​

Answers

The answer is X=0 and y=3

Select all that are correct:
___· ___ = (-48)
6 and 8
6 and -8
-6 and 8
-6 and -8
none of the above

Answers

Answer:

6 and -8

-6 and 8

Step-by-step explanation:

___· ___ = (-48)

Is the same as:

___· ___ = -48

A positive number multiplied by a negative number has a negative product.

P * N = N

Two positive numbers and two negative numbers have a positive product.

P * P = P

N * N = P

6 and -8  and -6 and 8 would be the correct answers. Again, a positive and a negative number will have a negative product.

6 * -8 = -48

-6 * 8 = -48

Hope this helps.

Per Article IV, Section 5 of the Florida state constitution, candidates for state governor must have been a resident of the state of Florida for at least seven years and be at least how many years old?

Answers

They must be at least 30 years old.

Which represents the area of the shaded region? a Area of circle - area of the square - area of a triangle b Area of a triangle-Area of the square + Area of a circle c Area of a triangle + Area of the square + Area of the circle d Area of the circle - Area of the triangle + Area of the square

Answers

Answer:

D: area of the circle-area of the triangle+ area of the square

Step-by-step explanation:

good luck!

Answer:

d

Step-by-step explanation:

Please help me with the correct answer

Answers

Answer:

225 ft squared

Step-by-step explanation:

Area is length by width and since its a square the length and width are the same.

15 x 15 = 225

Answer:

225 ft squared

Step-by-step explanation:

area is L x W, area of a square is s^2

so 15ft x 15ft = 225 ft squared

y is directly proportional to x 2 . If y = 8 when x = 2 find y when x = 3


Someone help will give you 5star and brainliest

Answers

Answer:

We know that if

          y ∝ x²

∴ y = k · x²

Now  

y = 8   , x = 4

From above y = k · x²

⇒ 8 = k · 4²

∴ k = 1/2

Again ....

x = 5  , y = ?

y = k·x²

y = 1/2 × 5²

 = 25/2 = 12.5

Step-by-step explanation:

What value of x will make the two triangles similar? plz help

Answers

Answer:

x = 60

Step-by-step explanation:

The Factor of sides is 1.5 and I found that out by dividing one side to the identical side on the other triangle then you multiply the bottom side by 1.5 to get the answer

please give brainliest

Myka bought a shirt that was originally priced at $40 and on sale for $34. What was the percent discount?

Answers

She bought it at a 15% discount because 15 percent of 40 is 6 and 40-6=34

117 is what percent of 144.3

Answers

Answer:

81.25

Step-by-step explanation:

Answer:

81.081%

Step-by-step explanation:

Put 117 into the numerator's place and 144.3 into the denominator's. 117/144.3= .810810... Move the decimal two places to the right to get your percentage.

Ben is n years old.
Chloe is twice as old as Ben.
Dan is five years younger than Ben.
The total of Ben’s age, Chloe’s age and Dan’s age is T years.
(a) Find a formula for T in terms of n.

Answers

Answer:

T = 4x - 5

Step-by-step explanation:

Let x = Ben's age

2x = Chloe's age

x - 5 = Dan's age

Combine all the terms and simplify to form an equation.

T = 2x + x + x -5

T = 4x - 5

Solve u2 =81 , where u is a real number show steps

Answers

Hey there! [tex]\bold{u^2=81}[/tex]Take your SQUARE ROOT[tex]\bold{New\ equation: x\pm \sqrt{81}}\\ \\ \bold{\sqrt{81}=9}\\ \\ \bold{-\sqrt{-81}=-9}\\ \\ \\ \\ \boxed{\boxed{\bold{Answer: x=-9\ or\ x =9}}}\huge\checkmark[/tex]Good luck on your assignment and enjoy your day!~[tex]\frak{LoveYourselfFirst:)}[/tex]

Plz solve at least one of the questions will mark brainliest

Answers

Answer:

The 6x6 cube is 1/4 the area of the 12x12 cube.

100%=$1,636,364 (Rounded to the dollar)

Step-by-step explanation:

6x6=36

12x12=144

36/144=1/4

_____________________

20%=?

25%=?

Remainder (55%=$900,000) so:

100%=$900,000/.55

100%=$1,636,364

please help me i'm DESPERATE!!

Answers

For f(x) plug in the number given into the x value of the equation. As an example A would be

f(-6) = 1 - 5 (-6)

Simplify: f(-6) = 1 - (-30)

Solve: f(-6) = 31

Determine whether the ordered pair is a solution of y=4x+3 (0,3)

Answers

Answer:

yes it is     3=4x0 +3

Step-by-step explanation:

Lori needs more than 250 signatures to run for the position of class president for her middle school. She already has 75 signatures and believes that she can get 25 more signatures each day. She wants to figure out how many days, d, she should collect the signatures she needs. Which inequality and solution for d correctly represent Lori’s situation?

Answers

Answer:

75 + 25d > 250

d > 7

Step-by-step explanation:

Number of signatures needed : > 250

Amount of signatures ready = 75

Exoected number of signatures per day = 25

Number of days, d, needed signatures will be collected ;

Number of ready signatures + (expected number of signatures per day * number of days) > number of signatures needed

Mathematically,

75 + 25d > 250

25d > 250 - 75

25d > 175

d > 175 / 25

d > 7

11(2+3) =
I need help on this question

Answers

Answer:

55 is the answer I think so

Answer: 55

Step-by-step explanation:

Step One: Add: 2 + 3 = 5

Step Two: Multiple: 11 * the result of step No. 1 = 11 * 5 = 55

p+4= 15
What is the value of p?
A. 6
O 8.9
OC. 11
D. 19

Answers

Answer 11
p+4=15
-4=-4
p=11
The answer should be c

A bottle contains 2/6 liters of soda. Ann has 12 of these bottles.
How much soda does she have in all? write in simplest form

Answers

Answer:

4 liters

Step-by-step explanation:

simplify 2/6 = 1/3

Multiply 1/3 times the 12 bottles

1/3 * 12

12/3

Simplify

4

Answer:

4 liters of soda.

Step-by-step explanation:

2/6⋅12=24/6

24/6=4

Therefore, your answer is 4 liters.

INEQUALITY WORD PROBLEM!!! GIVING BRAINLIEST AND MORE POINTS IF ANSWERED QUICKLY AND CORRECTLY.!!

Answers

Answer:thanks

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

Which of the following is a true statement about the equation...?
y = -x + 10
A.The graph of the equation for would pass through the origin.
B. The slope is 10
C. The slope is -7/8
D. The equation represents a proportional relationship.

Answers

The correct answer is -7/8

I used a calculator

1. y = 3x - 3 slope = y-intercept = У 4 2 x -4 -2 O 2 4 -2 -4​

Answers

Answer:

the slope is 3 and the y is -3

Step-by-step explanation:

3x= 3/1

3/1=rise/run

nth term of -7 -12 -17 -22 -27

Answers

Answer:

[tex]a_n=-2-5n[/tex]

Step-by-step explanation:

Arithmetic Sequences

The arithmetic sequences are those where any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.

The equation to calculate the nth term of an arithmetic sequence is:

[tex]a_n=a_1+(n-1)r[/tex]

Where

an = nth term

a1 = first term

r   = common difference

n  = number of the term

We are given the sequence

-7 -12 -17 -22 -27 ...

The first term of this sequence is a1=-7. We can calculate the common difference by subtracting two consecutive terms:

r = -12 - (-7) = -12 + 7 = -5

The nth term is:

[tex]a_n=-7+(n-1)(-5)[/tex]

Multiplying:

[tex]a_n=-7-5n+5[/tex]

Simplifying:

[tex]\boxed{a_n=-2-5n}[/tex]

Suppose that 32% of people have a dog, 28% of people have a cat, and 23% of people own both.
What is the probability that someone owns a dog or a cat?

Answers

Answer:

37%

Step-by-step explanation:

Use the general addition rule for any two events:

(32 + 28) - 23

60 - 23

= 37

So, the probability that someone has a dog or cat is 37%

Answer:

37%

Step-by-step explanation:

32 + 28 = 60

60 - 23 = 37

please help ill give branliest!!!!!!!!!!! :(

Answers

Answer:

The answer is C if i get it wrong then who ever gave you that is oof

Step-by-step explanation:

HELPPPP!!!! ASAPPPPPPP!!!!

The elimination method is used in place over substitution when one equation is not easily solved for ______________ variable.
a single
an independent
a standard
a dependent

Answers

I really hope I get it right but "a single" sounds more right

Answer:

a single

Step-by-step explanation:

when one equation is not easily solved for a single variable

4 + 4 (1 + 5m) = -132

Answers

Answer:

m=-7

Step-by-step explanation:

4+4+20m=-132

8+20m=-132

20m=-132-8

20m=-140

m=-7

Hell me please 1 isnt right

Answers

Step-by-step explanation:

I got this much.....

I am sorry of it gets wrong

Answer:

2,040

Step-by-step explanation:

That's what the calculator said ( ̄▽ ̄)"

Help me out , I gave out Brainliest

Answers

Answer:

3x-7y=-3

hope this helps!!:)

Step-by-step explanation:

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