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
ikadub [295]
3 years ago
11

One number is 3 times another. If the sum of the two numbers is 15, find the two numbers.

Mathematics
2 answers:
gregori [183]3 years ago
8 0

Answer:

15/4 and 45/4

Step-by-step explanation:

Let x and y be the numbers

x = 3y

x+ y = 15

Substitute the first equation in to the second equation

3y+y = 15

4y = 15

y = 15/4

x = 3(15/4)

x = 45/4

The two numbers are 15/4 and 45/4

Vinvika [58]3 years ago
6 0
Jjjjjjjjjjjjnhhjjhhjnhjnhhjnnnnnnnnnnnjnjnjnjnjnjnjnjn
You might be interested in
Plz help me with this
zvonat [6]

Answer:  5 cos x

<u>Step-by-step explanation:</u>

y = sin x     is       y = cos x        shifted to the right π/2 units.

y = 5 sin (x + π/2)     is a shift to the left π/2 units (which results in cos x) and    .                                 an amplitude of 5.

--> y = 5 cos x

8 0
3 years ago
Malcolm took 18 minutes to do 15 math problems. Diedra took 17 minutes to do 16 math problems. Which student did more problems p
boyakko [2]

The student that did more maths problems per minute is Diedra.

In order to determine which student did more maths problems per minute, the rate of each student has to be determined. Rate is the total questions solved divided by the time.

Rate = total questions / total time

Malcolm = 15 / 18 = 0.833 problems per minute

Diedra = 16/ 17 = 0.941 problems per minute

To learn more about rate, please check: brainly.com/question/9834403

3 0
2 years ago
Read 2 more answers
Please help asap !!!!​
disa [49]

Answer:

P = 3/8

q = 1/2

Step-by-step explanation:

(3/8)^3/8 × (3/8)^1/8 = P^q

Because of the same base, pick one of the bases

Then, add the powers

(3/8)^3/8 × (3/8)^1/8 = P^q

= (3/8)^3/8 + 1/8

= (3/8)^(3+1)/8

= (3/8)^4/8

= (3/8)^1/2

Therefore,

P^q = (3/8)^1/2

Where,

P = 3/8

q = 1/2

P^q = (3/8)^1/2

= √(3/8)

3 0
3 years ago
An angle measures 94°. what is the measure of its supplement?
Sliva [168]

Answer:

86

Step-by-step explanation:

180-94

4 0
3 years ago
Evaluate rq2 + 3qr + r2 for r = 5 and q = 2
abruzzese [7]
Answer is 60 U need to calculate carefully with brackets involving multiplication
7 0
4 years ago
Other questions:
  • Hello! Can someone pls help me out! It will be highly appreciated! Tysm and have a good day!
    14·1 answer
  • If gasp cigarettes have 5 mg tar and 0.4 mg nicotine per cigarette and there are 20 cigarettes per pack, how many cigarettes wou
    10·1 answer
  • Students all over the United States recently took the National Science Foundation test on Biology. The mean score for girls was
    7·1 answer
  • 732,178 + 167 - 542,137
    8·2 answers
  • A van travels 168 miles on 14 gallons of gas,At this rate,how many gallons will it need to travel 252 miles?
    9·1 answer
  • Of the 800 participants in a marathon, 120 are running to raise money for a cause. How many participants out of 100 are running
    5·1 answer
  • Whats The CORRECT answer ?
    15·1 answer
  • 6 ( 7y - 5) simplified
    10·1 answer
  • A line segment has endpoints at (3, 5) and (6, 1)<br> What is the x-coordinate of the midpoint?
    10·1 answer
  • The area covered by a lake is 11 square kilometers. It is decreasing exponentially at a rate of 2 percent each
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!