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
saw5 [17]
3 years ago
8

The ratio of Sally’s CDs to Ray’s CDs is 2: 7. Ray has 49 CDs. If Ray gives Sally 21 CDs, what will be the new ratio of Sally’s

CDs to Ray’s?
Mathematics
1 answer:
densk [106]3 years ago
3 0
Sally's CDs to Ray's CDs = 2:7
2 + 7 = 9
Ray's Cds to all CDs is 7:9

2x + 7x = 9x

2x + 49 = 9x

-7x = -49

x = 7

Ray has 7x = 49
Sally has 2x = 14

14:49 is the same as 2:7

Ray has 49 CDs. Sally had 14 CDs.
Ray gives 21 CDs to Sally.

Ray: 49 - 21 = 28
Sally: 14 + 21 = 35

Sally's CDs to Ray's CDs = 35:28 = 5:4
You might be interested in
Which value of $y$ makes the equation $3y+8=7y+11$ true?
valentinak56 [21]

value of y which satisfies equation 3y+8=7y+11 is  y= \frac{-3}{4} .

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

We have , 3y+8=7y+11 . We need to find which value of y satisfies this equation  3y+8=7y+11 :

3y+8=7y+11

⇒ 3y+8=7y+11

⇒ (3y+8)-3y=(7y+11)-3y

⇒ 8=4y+11

⇒ 4y+11 = 8

⇒ (4y+11)-11 = 8-11

⇒ 4y= -3

⇒ \frac{4}{4}y= \frac{-3}{4}

⇒ y= \frac{-3}{4}

Therefore, value of y which satisfies equation 3y+8=7y+11 is  y= \frac{-3}{4} .

8 0
3 years ago
50 PTS Please help me answer this asap!
Galina-37 [17]

Answer:

1. 2x + 1 ≤ 3

2. 1 + 3x ≥ -5

3. 5x - 7 ≥ 17

4. 5 - 3x ≥ 11

Step-by-step explanation:

Ok

5x - 7 ≥ 17

subtract 7 and u get 5x ≥ 10

divide that and you get ≥ 2

so 3 goes with that one

1 + 3x ≥ -5

subtract 1 and you get 3x ≥ -6

divide that and youll get x ≥ -2

so 2 goes with this one

2x + 1 ≤ 3

subtract 1 and u get 2x ≤ 2

divide them and you get x ≤ 1

so 1 goes with this one

5 - 3x ≥ 11

subtract 5 and u get -3x  ≥ 6

divide it and u get x ≥ -2

so 4 goes with this one

Hoped this helps :)

also btw Brainly steals half the points you give out so instead of 15 ur giving me 25.

8 0
3 years ago
Read 2 more answers
Express the repeating decimal as a fraction \large 2.11111...
deff fn [24]

Answer:

i believe A

Step-by-step explanation:

4 0
2 years ago
Mrs. Arnold took a survey of the types of pants her students were wearing. She collected the data below. What percent of her stu
SOVA2 [1]

Answer:

36%

Step-by-step explanation:

Jeans: 14

Shorts: 9

Capris: 2

Total number of students = Number of Jeans + Number of Shorts + Number of Capris

Total number of students = 14 + 9 + 2 = 25

% of students wearing shorts = Number of shorts / Total number of students * 100

% of students wearing shorts = 9 / 25    * 100 = 0.36  * 100 = 36%

4 0
3 years ago
A well is to be dug at the location in the diagram. Use the diagram for the parts.
Juliette [100K]

Answer:

y = \frac{1}{6}x - 5

Step-by-step explanation:

The equation that represents the road can be written as y = mx + b

Find, m = slope, and b = y-intercept of the line.

Using two points on the line, (-6, -6) and (6, -4), find the slope:

slope(m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-4 -(-6)}{6 -(-6)} = \frac{2}{12} = \frac{1}{6}

Substitute x = -6, y = -6, and m = ⅙ into y = mx + b to find b.

-6 = \frac{1}{6}(-6) + b

-6 = -1 + b

Add 1 to both sides

-6 + 1 = b

-5 = b

Substitute m = ⅙, and b = -5 into y = mx + b.

✅The equation that represents the road would be:

y = \frac{1}{6}x + (-5)

y = \frac{1}{6}x - 5

8 0
2 years ago
Other questions:
  • A submarine that is 245 feet below sea level descends 83 feet and then ascends 103 feet. What is the location of the submarine c
    10·1 answer
  • Is the difference of two polynomials always a polynomial? Explain..
    12·1 answer
  • The figure below shows concentric circles, both centered at 0.0
    13·1 answer
  • Please answer this correctly
    6·2 answers
  • there a 158 beats per minute in a certain taylor swift song. if the song is 3 minutes and 30 seconds long, how many total beats
    13·1 answer
  • Select all that apply.
    14·2 answers
  • On the coordinate plane shown, one line shows combinations of dimes and quarters that are
    6·1 answer
  • Write two numbers that multiply to the value on top and add to the value on bottom.<br> 50<br> 15
    10·1 answer
  • B. How many hundreds are in 4362? How many<br> whole hundreds?
    15·2 answers
  • A company dyes two sizes of rugs. A small rug requires 2 hours for dyeing, and a medium-size rug requires 3 hours for dyeing. Th
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!