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
Nataliya [291]
3 years ago
6

Find two numbers if their ratio is 4:7 and their difference is 123. help

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
7 0

Answer:

The numbers are 164  and  287

Step-by-step explanation:

Let

x-------> the first number

y-----> the second number

we know that

\frac{x}{y}=\frac{4}{7}

x=\frac{4}{7}y -----> equation A

y-x=123 -----> equation B

substitute equation A in equation B

y-\frac{4}{7}y=123

\frac{3}{7}y=123

y=123*7/3=287

Find the value of x

x=\frac{4}{7}(287)=164

Karo-lina-s [1.5K]3 years ago
5 0

Answer:

  164 and 287

Step-by-step explanation:

Their difference is 7-4 = 3 ratio units, so each ratio unit must stand for 123/3 = 41.

Then the numbers are 4·41 and 7·41, or 164 and 287.

You might be interested in
Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms.
gavmur [86]
To answer the question, simplify the polynomial by adding those that has the same degree of variable,
                                   6 - 3x + (6x³ - 2x³)
                                   6 - 3x + 4x³
Rearrange the polynomial with decreasing exponent or x,
                                     4x³ - 3x + 6
This is a third-degree polynomial. 
5 0
3 years ago
Read 2 more answers
Question about decimals
meriva

Answer:

  • Both are terminating decimals

Step-by-step explanation:

<u>Answer to your questions:</u>

  • First of all, both A and B are correct and both quotients are terminating decimals.
  • To find out if the decimal is terminating or not, multiply the quotient by divisor. If you get exactly the same number as dividend, then it is terminating otherwise it is non-terminating.
  • The fraction may have greater numerator than denominator, in this case the quotient will be greater than one.
  • Now regarding simplification. You would be asked to give an answer rounded to some extend.  One decimal place, two decimal places, 3 significant numbers etc. For the first operation you would get 34.8 (rounded to nearest tenth).
  • Or you may be asked to have a best estimated result. In this case you would round the initial numbers and find results. 205/714 ≈ 0.29

4 0
3 years ago
Nicki Plans to attend a state university in two years. Thanks to girls from relatives and earnings from an afterschool job, she
Crazy boy [7]

Answer:

Step-by-step explanation:

Thanks to girls from relatives and earnings from an afterschool job, she has already saved $3700. If she's a seed in her goal of saving $150 per month, then if she saves for x months, the total amount that she would be have earned is

150x + 3700

1 year = 24 months

If she saves for 2 years, it means that the number of months for which she saved is 2 × 12 = 24 months. Therefore, the total amount

that she will have two years from now is

150 × 24 + 3700

= 3600 + 3700

= $7300

7 0
3 years ago
A department store sold 34 shirts one day. All short-sleeved shirts cost $11.00 each and all long-sleeved shirts cost $21.00 eac
ANEK [815]
S + l. = 34
11s + 21l= 514

-11s - 11l= -374
11s + 21l = 514

10l = 140

l = 20 long sleeve shirts

s + 20 = 34

s = 14 short sleet shirts
5 0
3 years ago
I need help finding x
Charra [1.4K]

Answer:

x \degree =  {cos}^{ - 1} ( \frac{5.3}{7.9} ) \\   \:  \:  \:  \:  \:  \:  \:  = 47.864510547 \degree \\  \:  \:  \:  x = 47.86

7 0
4 years ago
Other questions:
  • A student solved this problem by making a table. Andy has $150. Marta has $120. In how many years will they both have the same a
    9·1 answer
  • HI, I'm not sure on the working out of this question (textbook only has answers)
    6·1 answer
  • −6.6(−4.3)<br> Find answer plz
    11·1 answer
  • Big Al’s Steak House and Trail’s End both claim to have the shortest wait times in town. To check out the claims, Ramon, a resta
    10·2 answers
  • 14. The diameter of carbon atom is about 3.4 x 10-7 millimeter. Is it more appropriate to report the diameter of carbon atom
    14·1 answer
  • Perform the indicated operation. (w 3 + 64) ÷ (4 + w)
    15·2 answers
  • -4,-24,-144,-864, I need help
    8·1 answer
  • A 26-foot long ladder is leaning against a building
    15·2 answers
  • At a wedding reception an equal number of guests were seated at each of three large tables, and 7 late arriving desks were seate
    7·1 answer
  • I need help ASAP this is for a test grade.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!