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
Dahasolnce [82]
3 years ago
10

A bricklayer can build a wall of a certain size in 5 hours. Another bricklayer can do the same job in 4 hours. If the bricklayer

s work together, how long would it take to do the job?
a. 9h
b. 2(2/9)h
c. 20h
d. 4(1/2)h
Mathematics
1 answer:
Tju [1.3M]3 years ago
7 0

Answer:

b

Step-by-step explanation:

You might be interested in
PLEASE HELP!!!!!!!!​
marshall27 [118]

Answer:

D

Step-by-step explanation:

I took the quiz :)

4 0
3 years ago
50 POINTS TO WHOEVER HELPS WITH THIS I NEED IT ASAP PLEASE HELP
Tresset [83]

Answer:

<em>4a ) Difference ⇒ $ 63.24,</em>

<em>4b ) 4 children</em>

Step-by-step explanation:

4a ) If the number of children is represented by the value of x, let us substitute a family of 2 children as value of x into this equation we are given;

y = 21.08 * ( 2 ) + 85.15 ⇒ Multiply 21.08 by 2,

y = 42.16 + 85.15 ⇒ Combine like terms,

y = 127.31

If y ⇒ amount spent on grocery's, let us solve for the amount spent on 5 children, and subtract from this amount;

y = 21.08 * ( 5 ) + 85.15 ⇒ Multiply 21.08 by 5,

y = 105.4 + 85.15 ⇒ Combine like terms,

y = 190.55

Difference; 190.55 - 127.31 = 63.24,

<em>Solution; Difference ⇒ $ 63.24</em>

4b ) If the amount is $ 169.47, let us plug it into our given equation provided amount spent on groceries ⇒ y;

169.47 = 21.08x + 85.15 ⇒ Subtract 85.15 from either side of equation,

21.08x = 84.32 ⇒ Divide either side 21.08,

x = 4 children

<em>Solution; 4 children</em>

7 0
2 years ago
consider this expression 7+3.4+2 what movements does this represent for Cecil walking on his tightrope? draw a diagram to show h
Lina20 [59]

Ok let me start it from here.

you are studying about properties of natural numbers or whole number or may be integers.

So , In this  Question you have to follow property of addition of integers.

⇒7+3=( You are at the point 7 on the number line or on the tight rope , you are moving (+3) on the right direction.) So you will reach at 7+1+1+1=10

⇒4+2=( You are at the point 4 on the number line or on the tight rope , you are moving (+2) on the right direction.) So you will reach at 4+1+1=6

In first case Cecil has taken total walk of 10 units and in second case Cecil has taken a walk of 10 units.

5 0
3 years ago
Help please!!!I need it by tomorrow
Umnica [9.8K]

(1.) antelope sprinted the farthest

(2.) cba doing this one lol

4 0
3 years ago
Read 2 more answers
Find the exact value of T Image below
Elanso [62]

Answer:

a) 1/800 or 0.00125

b) i) 0.0013

ii) 0.001

c) 60%

Step-by-step explanation:

T = [tan(2×30)+1][2cos(30)-1] ÷ (y²-x²)

T = (tan60 + 1)(2cos30 - 1) ÷ (41² - 9²)

T = (sqrt(3) + 1)(sqrt(3) - 1) ÷ 1600

T = (3-1)/1600

T = 2/1600

T = 1/800

T = 0.00125

Error: 0.002 - 0.00125

0.00075

%error

0.00075/0.00125 × 100

60%

4 0
3 years ago
Other questions:
  • Six less then a number is equal to ten
    11·2 answers
  • Three vertices of a rectangle have coordinates (–6, 2), (–6,–1), and (4, 2).
    6·1 answer
  • (b+3g)a=9. Solve for a
    10·1 answer
  • How did I do so far and what is the correct answers for each question
    12·1 answer
  • Do NOT write incorrect answers or plagiarize or I will REPORT!
    13·2 answers
  • Please help! Will give brainliest!
    12·2 answers
  • 2/9 of the students are in sixth-grade
    14·2 answers
  • Mother shared 60 sweets among her 2 daughters in the ratio 2:3. If Janice gets 20, how many do Kayla gets?​
    5·1 answer
  • M
    7·2 answers
  • the diagram represents the unit rate of making copies on a copy machine. Which table represents the rate of making copies on thi
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!