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

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.

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

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

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

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.

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]

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

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

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.

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

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

Answers

Answer:

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

Here, is the answer of comparison

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

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

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]

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

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

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:

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)

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

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

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.

what two numbers multiply to 30 and add up to 11

Answers

Answer:

-5 and -6

have a great day:)

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

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

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

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

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

I NEED HELP ITS DUE AT 9

Answers

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

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

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

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