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
eimsori [14]
2 years ago
9

Alex and Jack work for a computer software company. Alex can write a computer program in 24 hours, while

Mathematics
1 answer:
Lorico [155]2 years ago
5 0

Alex and Jack work for a computer software company. Alex can write a computer program in 24 hours, while

Jack can write it in 16 hours. How long will it take them to write the program together?

Answer: 9.6 hours

You might be interested in
When using Cramer's Rule to solve a system of equations, if the determinant of the coefficient matrix equals zero and neither nu
o-na [289]
The answer would be A. When using Cramer's Rule to solve a system of equations, if the determinant of the coefficient matrix equals zero and neither numerator determinant is zero, then the system has infinite solutions. It would be hard finding this answer when we use the Cramer's Rule so instead we use the Gauss Elimination. Considering the equations:

x + y = 3 and <span>2x + 2y = 6
Determinant of the equations are </span>
<span>| 1 1 | </span>
<span>| 2 2 | = 0
</span>
the numerator determinants would be
<span>| 3 1 | . .| 1 3 | </span>
<span>| 6 2 | = | 2 6 | = 0.
Executing Gauss Elimination, any two numbers, whose sum is 3, would satisfy the given system. F</span>or instance (3, 0), <span>(2, 1) and (4, -1). Therefore, it would have infinitely many solutions. </span>
3 0
2 years ago
Which triangles in the diagram are congruent?
GenaCL600 [577]

Answer: triangle 1, triangle 2, and triangle 3

Step-by-step explanation:

Triangles 1 and 3 are congruent by SAS. So, by CPCTC, all three sides are congruent, making triangle 2 congruent to them as well by SSS.

4 0
2 years ago
Compare and order the numbers. 368,753 459,156, 796,154, 368,743, 530,076
myrzilka [38]
368,743 /368,753 /459,156/530,076/796,154 from smallest to biggest
6 0
3 years ago
How do you estimate21× 78
finlep [7]

21 *78=

20 * 80=

1600 as an estimate


8 0
3 years ago
What is the answer to this please help
Elis [28]

Answer:

use calculater please it will not take long

4 0
2 years ago
Read 2 more answers
Other questions:
  • Nia has $19.50 to ride the subway around New York. It will cost her $0.75 every time she rides. Identify the dependent variable
    10·1 answer
  • The office building is 48 floors high. Half of the floors have 18 windows each and half of the floors have 36 windows each. How
    11·2 answers
  • The vertices of a triangle are A(2,4),B(-1,-3),and C(3,6). Find the new vertices. Use the rule (x,y) &gt;&gt;&gt;(x-3,y+5)to tra
    8·1 answer
  • Solve. 1/2(-4 — 2n) = -17 Please explain it to me if you can I dont really understand how to do these types of problems so it wo
    7·2 answers
  • the expression x-0.10x gives the cost of an item that is discounted 10%. Write this expression another way.
    8·1 answer
  • The speed at which a certain computer can access the internet is 2 megabytes per second. How fast is this in megabytes per hour.
    9·2 answers
  • determine if the following triangles are similar, and if so which postulates or theorem proves they are similar​
    9·1 answer
  • PLS HELP I HAVE 5 MIN
    8·1 answer
  • Solve the following simultaneous equations 2x+5y=0 and 3x-4y=23
    7·1 answer
  • What value(s) of x will make x2 = 25 true?<br> A. 5 and -5<br> B. 5<br> C. 5<br> D. 12.5 and -12.5
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!