Ditch Digging Problem Doug Upp can dig a ditch in 3 hours. His
brother Phil could dig the same ditch in 5 hours. How long would it take to dig the ditch if both work together?

Answers

Answer 1
It’s definitely less than 8 because when two people work together it takes less time

Related Questions

Six apples and one pear cost $1.07. At the same price, three apples and six pears cost $1.47. An apple costs

Answers

Answer: [tex]\$0.15[/tex]

Step-by-step explanation:

Given

Six apples and one pear cost [tex]\$1.07[/tex]

Also, three apples and six pears costs [tex]\$1.47[/tex]

Suppose [tex]x[/tex] and [tex]y[/tex] be the price of apple and pear. So, we can write the cost as

[tex]\Rightarrow 6x+y=1.07\quad \ldots(i)\\\Rightarrow 3x+6y=1.47\quad \ldots(ii)\\\text{solve (i) and (ii) we get}[/tex]

[tex]x=0.15,\ y=0.17[/tex]

The cost of an apple is [tex]\$0.15[/tex]

A blouse originally $29..99 is 15% off. Marlene has a coupon for an additional
20% percent off. What is the new price of the blouse before tax?

Answers

Answer:

20.39

Step-by-step explanation:

15% of 29.99 is 4.4985

so

29.99-4.5

=

25.49

subtract the 20%

20% of 25.49

=

5.1

lastly,

25.49-5.1

=

20.39

f(x)=-x^2+8x-14 using quadratic formula

Answers

Answer:

Were you looking for the x and y intercepts? The question is very misleading.

If you were the x intercepts are (4-√2,0), (4+√2,0)

And the y intercept is (0,−14)

If you did not mean this in your question please specify what you meant.

Answer:

[tex]x=4-\sqrt{2}[/tex] or [tex]x=4+\sqrt{2}[/tex]

Step-by-step explanation:

Plug in given values of a, b, and c into the quadratic formula and solve for x:

[tex]x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}[/tex]

[tex]x=\frac{-8±\sqrt{8^{2}-4(-1)(-14) } }{2(-1)}[/tex]

[tex]x=\frac{-8±\sqrt{64-56 } }{-2}[/tex]

[tex]x=\frac{-8±\sqrt{8} }{-2}[/tex]

[tex]x=\frac{-8±2\sqrt{2} }{-2}[/tex]

[tex]x=4±-\sqrt{2}[/tex]

Therefore, the roots are [tex]x=4-\sqrt{2}[/tex] or [tex]x=4+\sqrt{2}[/tex]

An unknown number y is 15 more than an unknown number x. The number y is also x less than 8. The equations to find x and y are shown below.

y = x + 15
y = −x + 8

Which of the following statements is a correct step to find x and y?

and could somebody please give me a step by step explanation

Answers

Since both equations equal y, you can combine them to x+15=-x+8
Next you need to move both variables to the same side so you can subtract x from both sides so it would be 15=-2x+8
Now you want to get the variable alone so you’d subtract the 8 from each side of the equation and you’d be left with 7=-2X
Lastly you one just one x so divide each side by -2 and you’d have 7/-2=x
x= -7/2 or -3.5

Let me know if you want further explanation of how I got x.

Answer:

x = −3.5

y = 11.5

Step-by-step explanation:

y = x + 15

y = −x + 8

[We know that y is 15 units more than x, and that −x is 8 units less than y. That can be combined into −x + 8 = x + 15 for the first variable (x), and for the second variable (y), y − 15 = −y + 8]

In order to solve this, solve for the first variable in one of the equations, then substitute the result into the other equation.

x = −[tex]\frac{7}{2}[/tex] = −3.5

y = [tex]\frac{23}{2}[/tex] = 11.5

Identify the area of a regular octagon with side length 16 cm rounded to the nearest tenth​

Answers

Well the full answer is 1236.08 so just round it
Explanation
The area of a octagon formula
2 x (1 + •2) the side squared
•__ square root
Just substitute it in
2 x (1 + •2) x 256

What is the measure of angle Y?

Answers

Answer:

what's the question

Step-by-step explanation:

is there a photo you can post we need more info

Throwback
THURSDAY
-8 + (-1)=
2 - 7 =
(-8)(-2) =
-42= -7 =

Answers

-8+ -1 equals -9
2-7= -5
-8 x -2 equals 16

Answer:

-8+(-1)=-9

2-7=-5

(-8)(-2)=16

-42=-7=false

Step-by-step explanation:

If (x + 8) = 10, determine the value of x.

Answers

Answer:

(x+8)= 10 so 8 subtracted from 8 is zero and 8 subtracted from 10 is 2 so the

the answer is 2

Help please!
Which expression has a value that is less than the base of the expression?
A. 5/63 (3 is squared)
B. 32 (2 is squared)
C. 23 (3 is squared)
D. 44 (2nd 4 is squared)

Answers

The answer might be A

Find the area of this triangle. Round to the nearest whole number.

Answers

Answer:

35

Step-by-step explanation:

Area of a triangle= B*H/2 so 14*5/2=35

Answer:

35

Step-by-step explanation:

I took the quiz

what two numbers multiply to 30 and add up to 11

Answers

Answer:

-5 and -6

have a great day:)

A merchant made 15% profit by selling his goods for $92. How much did he pay for the goods?

Answers

Answer:

13.8 I believe is the answer

The area of a parallelogram can be found by the equation area = (b)(h)

Find the height of a parallelogram that has an area of 10
1
2
in² and a base of
3
4
in.

The height of the parallelogram is
inches.

Answers

Answer:

14

Step-by-step explanation:

Answer:

answer: 14

Step-by-step explanation:

got it right

PLEASE HELP FAST AND PLEASE DON'T POST A LINK

Your parents are planning to rent you an apartment when you go to college. The annual contract is $535.00/month with a 2-month penalty for breaking the lease. The month-to-month contract is $615.00/month. What is the difference in the amount paid if you leave after 8 months?

Answers

Answer:

The difference in amount = $430

Step-by-step explanation:

1- Annual contract:

The annual contract means a contract for 12 months. There is a month penalty for breaking the lease.  

This means that, if you left after 8 months, you will have to pay for 10 month.

Total paid = monthly payment * 10

Total paid = 535 * 10 = $5350

2- Month-to-month contract:

You will only paid for the 8 months you stayed,

Total paid = monthly payment * 8

Total paid = 615 * 8 = $4920

3- Getting the difference:

We can note that a month-month contract is a better option if you intend to stay for only 8 months

Difference = 5350 - 4920 = $430

Hope this helps :)

The answer is $430 it’s correct I did and I got it right

What is the answer to this question?

Answers

Answer:

$608.33 or $608.32645 not rounded

Step-by-step explanation:

A=P(1+r/n)^nt P=500 r=0.04 n=1 t=5

A=500(1+0.04/1)^1x5

A=500(1.04)^5

A=500(1.2166529)

A=608.32645

helppp!!!!!! :(((((((((((((((((((((((((((((

Answers

Answer:

= <><=>=<>=<<

Here, is the answer of comparison

Given square ABCD, which line segment could be an image of side AD using only a translation?

Answers

Answer:

The second one

Step-by-step explanation:

Line segment BC will be an image of side AD using only a translation.

Option 2 is true.

What is Translation?

A transformation that occurs when a figure is moved from one location to another location without changing its size or shape is called translation.

Given that;

A figure ABCD is a square.

Now,

Since, ABCD is a square.

So, All sides of square ABCD are equal to each other.

Since, A translation occurs when a figure is moved from one location to another location without changing its size or shape.

Thus, Line segment BC will be an image of side AD using only a translation.

Therefore, Line segment BC will be an image of side AD using only a translation.

Learn more about the translation visit:

https://brainly.com/question/12861087

#SPJ2

You mix 1/3 cups of blue paint for every 2/3 cup of yellow paint to make green paint. You use 4 cups of yellow pant. How much blue paint do you use?

Answers

Answer:

You use 2 cups of blue paint.

Step-by-step explanation:

In this case, you can use a rule of three to find the amount of blue paint you need when you use 4 cups of yellow paint given that you mix 1/3 cups of blue paint for every 2/3 cup of yellow paint:

2/3 cup of yellow paint    →    1/3 cups of blue paint

4 cups of yellow paint    →                 x

x=(4*1/3)÷2/3

x=4/3÷2/3

x=4*3/3*2

x=12/6

x=2

According to this, the answer is that you use 2 cups of blue paint.

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

A the distribution will be skewed to the right
Answer: A







Ndndnjcxbcn

plz helppppppppoppppppp

Answers

Answer:

D

Step-by-step explanation:

Option A:

(3)¹ × (3)⁻¹⁰   =  (3)⁽¹⁻¹⁰⁾   = 3⁹

=

=

Option B :

(3)⁻¹ × (3) ¹⁰   = 3⁽¹⁰⁻¹⁾

= 3⁹

= 19683

Option C :

(3⁻⁴) × (3)⁷   = 3⁽⁷⁻⁴⁾

              = 3³

Option D :

3⁴ × 3⁻⁷ = 3⁴⁻⁷

= 3⁻³

=  

=

Therefore, option D is the answer.

Is (2, 4) a solution to this system of inequalities?

y < 8x + 8
y ≥ x + 1

Answers

Answer:

yes

Step-by-step explanation:

4<8*2+8

4<16+8

4<24

4 ≥2+1

4 ≥3

20 ounce bag of pretzels to a party if each person at the party ate 1/5 of the bag how many ounces of pretzels in each person eat

Answers

Answer:

20/5 = 4

Step-by-step explanation:

since each person will get 1/5 of the original 20 ounces, you would divide the pretzels into 5 equal portions of 4.

simplify 10^7*10^5 Thank you

Answers

Answer:

1000000000000 is the answer.

Step-by-step explanation:

you would raise 10 to the power of 12 so the answer would be 1000000000000

Find the area of the figure.

Answers

Answer:

89m ^2

Step-by-step explanation:

purple 8x13 = 104

triangle 1/2(5)(6) = 15

104-15 = 89

If f(x)= 9x^2+2x-3, find f(-1).

Answers

Answer:

f(-1)= 4

Step-by-step explanation:

Just plug -1 into all Xs

and split it into 2 seperate problems for the time being

[9 times (-1)^2] + [2(-1)-3]

-1 squared is positive 1  times the 9 is just 9

Plus  2 times -1 is -2 minus 3 is -5

combine the two seperate problems you have

9-5 the subtract and

f(-1)= 4

Select all the statements that are true about JKL and LMN.

Answers

Answer:

There is nothing here

Step-by-step explanation:

Answer:

Step-by-step explanation:

a , b & c

I NEED HELP ITS DUE AT 9

Answers

120 for the first
30 for the second
so uhhh
150 in^3

Point P is plotted on the coordinate grid. If point S is 10 units above point P, what are the coordinates of point S?

On a coordinate grid from negative 12 to positive 12 in increments of 2, a line PQ is drawn with P plotted at the ordered pair 6, negative 4.
(1 point)

1. (−4, −4)
2. (−4, 6)
3. (6, 6)
4. (6, −4)

will give best and tanks

Answers

Step-by-step explanation:

(−4, −4)

2. (−4, 6)

3. (6, 6)

4. (6, −4)

Five of every six gifts were wrapped in blue paper. If there are 25 gifts wrapped in blue paper, how many gifts are there altogether?

Answers

Answer:

There are 30 gifts altogether.

bro i can’t fail this real talk i need help please i’ll give u a brainliest for your help please

Answers

Answer:

33.4933333333, rounded, [tex]33.5x^{3}[/tex]

4/3x3.14x2x2x2=33.4933333333

Answer:

58.6

Step-by-step explanation:

pi*r^2*h/3 is the formula to find a cone's volume

3.14*2^2*14/3 is 58.613 (3 repeating)

round to the nearest tenth

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