1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lynna [10]
2 years ago
11

A contractor decides that he can build a barn in nine weeks using four men. If he employs two more men, how long will the job ta

ke? Assume that all the men work at the same rate.
Mathematics
1 answer:
alina1380 [7]2 years ago
8 0

Answer: 6weeks

Step-by-step explanation:

If it takes 4 men, 9 weeks to build a barn.

It will take a man; 4 x 9weeks =36 weeks to make a barn

If it takes a man 36weeks to make a barn, it will take 4men + 2 men i.e 6men = 36/6

6 weeks to make a barn

You might be interested in
Help ill give brainlest pls
balu736 [363]

Answer:

D

Step-by-step explanation:

Look at the coordinates of the new figure. Remember that coordinates are formatted so that the x comes first and then the y

7 0
3 years ago
Please help me find the area
Radda [10]

Answer:

8x^{2} +14x+6

Step-by-step explanation:

The formula for the area of rectangle is length times width:

(2x+2)(4x+3)\\

Use FOIL method:

8x^{2} +6x+8x+6\\8x^{2} +4x+6

6 0
3 years ago
QUESTION 4 (10 MARKS)
77julia77 [94]

Answer:

A. $22,223

B. $20,000

C. $20,000

Explanation:

The annual return of the retired couple's investment is called the yield in percentage.

A. If they go for Treasury bills which has a yield of 9%, to attain a return of at least $2,000 their investment must exceed $20,000. 9% of 22,223 = $2,000.07

B. . If they go for Corporate bonds option which has a yield of 11%, to attain a return of at least $2,000; 11% of 20,000 = $2,200

C. . If they go for Junk bonds option which has a yield of 13%, to attain annual return of at least $2,000; 13% of $20,000= $2,600

3 0
3 years ago
A thumbtack that is tossed can land point up or point down. The probability of a tack landing point up is 0.2. A simulation was
sweet-ann [11.9K]

Answer:

Option C: 0.28

Step-by-step explanation:

This is a binomial probability distribution problem.

Now, we want to find the probability that at least 2 thumbtacks land pointing up when 5 thumbtacks are tossed. This is written as;

P(X ≥ 2) = P(2) + P(3) + P(4) + P(5)

From the histogram;

P(5) = 0.02

P(4) = 0.02

P(3) = 0.05

P(2) = 0.19

Thus;

P(X ≥ 2) = 0.19 + 0.05 + 0.02 + 0.02

P(X ≥ 2) = 0.28

8 0
3 years ago
Read 2 more answers
How do you spell 4 billion in scientific notation
Tema [17]

Answer:

<h2>4 bilion = 4 × 10⁹</h2>

Step-by-step explanation:

The scientific notation:

a\cdot10^k

where

1\leq a

4 billion:

in USA: 4,000,000,000

in Europe: 4 000 000 000 000

4\underbrace{000000000}_9=4\cdot10^9

3 0
3 years ago
Other questions:
  • How do I simplify this? Please help
    11·1 answer
  • What is the value of n in the equation –(2n + 4) + 6 = –9 + 4(2n + 1)?
    5·2 answers
  • |2n+5|&gt;/9 solve for n?
    10·2 answers
  • Write an equation for the line , given that m=3 and the y-intercept is (0,2).
    11·1 answer
  • In the 1996 summer Olympic Michael Johnson set a world record in the 200 meter run with a time of 19.32 seconds this broke his r
    7·1 answer
  • X-3÷4x^4-8x^3-18x^2+17x+3​
    7·1 answer
  • A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?​
    14·1 answer
  • Jerry's basketball team makes 40 baskets for a total of 92 points in a basketball game. some of the baskets are worth 2 points,
    7·1 answer
  • The endpoints of a line segment AR are A(8,-2) and R(-4,1). What is the length of the AR?
    8·1 answer
  • What is the measure of Zx?<br> Angles are not necessarily drawn to scale.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!