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
faltersainse [42]
3 years ago
13

The ratio of two numbers is 4:9. When 5 is subtracted from each of them the new ratio becomes 3:8. Find the numbers.​

Mathematics
1 answer:
natta225 [31]3 years ago
8 0

Answer:

FIRST NUMBER IS 20

AND

SECOND NUMBER IS 45

Step-by-step explanation:

LET THE RATIO BE X

FIRST NUMBER = 4X

SECOND NUMBER = 9X

A/Q,

=}4X - 5 / 9X - 5 = 3 / 8

CRISS CROSS,

=}8 ( 4X - 5 ) = 9X - 5 ( 3 )

=}32X - 40 = 27X - 15

=}32X - 27X = - 15 + 40

=}5X = 25

=}X = 25 / 5

=}X = 5

THEREFORE,

FIRST NUMBER

=} 4X

=} 5 × 4

=} 20

SECOND NUMBER

=} 9X

=} 5 × 9

=} 45

You might be interested in
The tables below show the values of Y for different values of X
pogonyaev

Answer:

Option D

Step-by-step explanation:

Rate of change of a linear function between two points (x_1,y_1) and (x_2,y_2) is given by,

Rate of change 'm' = \frac{y_2-y_1}{x_2-x_1}

From the given table,

Rate of change of the function between (-2, 6) and (-4, 9),

Rate of change 'm' = \frac{9-6}{-4-(-2)}

                           m = \frac{3}{-2}

Initial value = y-intercept

Let the equation of the line passing through a point (h, k) is,

y - k = m(x - h)

If a point (-2, 6) is lying on the graph of the function,

y - 6 = -\frac{3}{2}(x+2)

y = -\frac{3}{2}x-3+6

y = -\frac{3}{2}x+3

Y-intercept of the function = 3

Therefore, initial value of the function = 3

Option D is the answer.

3 0
3 years ago
Four more than a number and a no more than twelve
kolezko [41]

Answer: is it 8

Step-by-step explanation: i just guess the middle number

6 0
3 years ago
The temperature is 3C at sunrise. By noon ,the temperature changes by 5C. What could be the temperature at noon?
kaheart [24]

Answer:

it could either be 8C or -2C

Step-by-step explanation:

7 0
3 years ago
Plz plz plz plz plz help peep
PilotLPTM [1.2K]

2³-4²

= 8-16

=-8

Hopefully this helps! Good luck! :)

6 0
3 years ago
Read 2 more answers
EF
BARSIC [14]

Answer:

Step-by-step explanation:

48 + 14 / 2 =  31

7 0
3 years ago
Other questions:
  • Galactic Rotation Speed. We are located about 27,000 light-years from the galactic center and we orbit the center about once eve
    6·1 answer
  • Simplify: (x8y3z−2)1/2
    12·2 answers
  • For what type of data are scatter charts used?
    5·1 answer
  • The graph of an exponential function has
    6·2 answers
  • What is a positive and a negative number between 1 and -1 ? ​
    14·1 answer
  • PLZ PLZ PLZ PLZ SOLVE THIS PLZ PLZ PLZ PLZ
    14·1 answer
  • Which figure represents the image of trapezoid LMNP after a reflection across the x-axis? figure A figure B figure C figure D
    5·2 answers
  • The interquartile range gives the range of the middle_____% of the data​
    10·1 answer
  • Express the area of the entire rectangle.<br> Your answer should be a polynomial in standard form.
    13·1 answer
  • Part A -
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!