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
r-ruslan [8.4K]
3 years ago
15

Please help on number 3

Mathematics
1 answer:
Sedbober [7]3 years ago
6 0

Answer:

Step-by-step explanation:

You might be interested in
Three times one number added to five times another number is 54. The second number is two less than the first. Use a system of e
worty [1.4K]

Answer:

8 and 6

Step-by-step explanation:

If you use x for the first number, and y for the second, you get equations of 3x+5y=54 and x-2=y.

You can substitute the second equation into the first one to solve it. This gives 3x+5(x-2)=54.

The brackets can be expanded to 3x+5x-10=54. Collecting like terms makes it 8x-10=54.

Next, we add 10 to both sides. This gives 8x=64.

From there, we isolate the x by dividing both sides by 8, giving x=8.

To work out the second number, we can sub 8 for x in either equation (I'm using the second one as it's simpler).

This comes to y=8-2, therefore y=6.

**This content is simultaneous equations, which you may wish to revise. I'm always happy to help!

3 0
3 years ago
If you worked for 6 days for a total of 67.8 hours. If I worked the same number of hours each day, how many hours did I work in
Hunter-Best [27]
Hi there!

To solve this problem, we need to divide 67.8 by 6 to find the amount of hours each day. 

67.8 / 6 = 11.3

You worked 11.3 hours each day. 

Hope this helps!
8 0
2 years ago
Select the sets that are not functions.
Kaylis [27]

Answer:

D,E are not functions

Step-by-step explanation:

A function is a relation in which every  input has not more than one output.But the output of the inputs may be same.Here in D the input 1 has 4 different outputs as 1,2,3,4.So its not a function.Similarly in E 6 has 2 outputs as 2 and -1.For remaining sets the inputs has only one output.so they are functions.

7 0
3 years ago
How many different ways can you write a fraction that has a numerator of 2 as a sum of fractions
Rzqust [24]
At least you can write it as the sum of half of it twice, that is:
2/x = 1/x + 1/x
whatever x number you have, for example:
2/5 = 1/5 + 1/5

But then, you can express a fraction in many different ways, for example again:
2/5 = <span>1/5 + 1/5 = 2/10 + 2/10
</span>= 1/10 + 1/10 + 1/10 + 1/10
so there are an infinite ways of expressing such a fraction.
7 0
3 years ago
Jasmine works at the public library after school. She makes $7.00 per hour. She cannot work more than 15 hours per work. If y=7x
kotykmax [81]

Answer:

c

Step-by-step explanation:

Jasmine can work from 0 hours to 15 hours

6 0
3 years ago
Other questions:
  • Leena knits 10 rows in 12 min. At this pace, how long will it take her to knit the next 25 rows? Enter your answer in the box.
    14·2 answers
  • A body builder consumed 4,400 calories yesterday. Today, he consumed 3,600 calories . What is the percent decrease in number of
    5·1 answer
  • 05 - O gráfico a seguir mostra a prevalência de obesidade da
    11·1 answer
  • Given f(x) = x - 7 and g(x) = x2.<br> Find g(f(4)).<br> 9(4)) =
    7·1 answer
  • Please Help!!! the picture is below
    6·1 answer
  • SAQ 5.1
    15·1 answer
  • Which graph matches the equation y=2/3x-4
    10·1 answer
  • Can I please get helped with this I will make you Brainly
    8·1 answer
  • If f x) = [x – 3], find f (5.6 ).
    8·1 answer
  • PLEASE HELP ME OUT !!!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!