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
emmainna [20.7K]
2 years ago
8

Two times a number added to another number is 25. Three times the first number minus the other number is 20. Find the numbers.

Mathematics
1 answer:
lesantik [10]2 years ago
7 0

Answer:

first number is 9

second number is 7

Step-by-step explanation:

2x + y = 25

3x - y = 20

Add the two equations so that 'y' is eliminated:

5x = 45

x = 9

2(9) + y = 25

18 + y = 25

y = 7

You might be interested in
How do you find the slope
dalvyx [7]
Remember that the slope of a line never changes, so you can choose whatever 2 points you want and you will always get the same slope. Calculate the rise and run (You can draw it on the graph if it helps). The slope is 2/4, which , of course, you can simplify to ½.
8 0
3 years ago
Read 2 more answers
A puppy was born on April 1. The table gives the puppy's weights on three different
Masja [62]

Answer:

it is the middle one

Step-by-step explanation:

i did it

6 0
3 years ago
What is the slope of the line that passes through (3,-7) and (-1,1)
mafiozo [28]

the slope would be the change in Y over the change in X,

-7-1= -8, 3-(-1)= 4, -8/4 or -2 is the slope

3 0
3 years ago
Read 2 more answers
Find the value of x. If necessary, round your answer to the nearest tenth. The figures are not drawn to scale.
REY [17]

Answer:

9.93

Step-by-step explanation:

Secant-Tangent theorem tells us that the product of the secant segment with its external segment is equal to the square of the tangent segment.

From the diagram, we can say (let the unknown part of secant line, the part left of the segment length 5, be y):

(15+y)(10) = 17^2

Solving for y we get:

(15+y)(10) = 17^2\\150+10y=289\\10y=289-150\\10y=139\\y=13.9

Now we can use the chord theorem to solve for x. Chord theorem tells us that when 2 intersecting chords create 4 segments, the product of the individual chord segments are equal. Thus we can say:

5 * 13.9 = 7 * x

Now solving, we get:

5 * 13.9 = 7 * x\\69.5=7x\\x=\frac{69.5}{7}\\x=9.93

Thus x = 9.93

last answer choice is right.

4 0
2 years ago
Antonia is saving for a video game. On the first day, she saves two dollars in her piggy bank. Each day after that, she doubles
ehidna [41]

Answer:

64 dollars

Step-by-step explanation:

1st day= $2

2nd day= $4

3rd day= $8

4th day= $16

5th day= $32

6th day= $64

5 0
2 years ago
Read 2 more answers
Other questions:
  • Choose the missing step in the given solution to the inequality −6x − 10 > 14 + 2x. −6x − 10 > 14 + 2x _______________ −8x
    10·2 answers
  • One integer is eight less than another integer. The sum of the two integers is fifty. What are the integers?
    5·2 answers
  • A triangle has an area of 48 square units. Its height is 8 units.
    9·2 answers
  • Ebert used to make $22 an hour, but got a 10% raise. How much more will he make in a 40 work week with the raise? Give steps!
    9·2 answers
  • Find the surface area of a sphere that has a volume of 288 cu. in.
    13·1 answer
  • PLEASE HELP!!! Name the postulate or theorem that you can use to prove.....
    10·1 answer
  • What fraction does 4 triangles represent when 1 hexagon is worth 1 whole
    8·1 answer
  • (1)Using your answer from above, (170 hives) how much did the almond grower pay for renting the bees when it was $40 per hive? H
    5·1 answer
  • Please help 18 MATH PROBLEM
    7·2 answers
  • For any function, we call x the ____________ value and y is the _______________ value.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!