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
mrs_skeptik [129]
3 years ago
5

What's the inverse of x+y=7

Mathematics
1 answer:
serious [3.7K]3 years ago
4 0

Answer: x-y=7

Step-by-step explanation:

You might be interested in
Х<br> -3<br> 3 so<br> Plz explain this its a fraction
alexandr1967 [171]

Answer:

x = 9

Step-by-step explanation:

x−(3)(3=x+−9 )

8 0
3 years ago
5. Priya mixes 2..5 cups of water with 1/3 cup or orange juice concentrate. Diego mixes 1 2/3 cups of water with 1/4 cup or oran
Snowcat [4.5K]

Priya needs 13⅓ cups of orange juice

Diego 15 cups

Step-by-step explanation:

......................................................................................................................

Priya

......................................................................................................................

Cup of water = 2½

Cup of orange = ⅓

If 2½ cups of water requires ½ cup of orange juice concentrate

Then 100 cups of water would require x cup of orange

Representing the above statement mathematically

2½ : ⅓ = 100 : x

5/2 : 1/3 = 100 : x ------------------Convert ratio sign to division

5/2 ÷⅓ = 100/x

5/2 * 3 = 100/x

15/2 = 100/x ---------------Multiply both sides by x

15/2 * x = 100/x * x

15x/2 = 100 ------------------ Multiply both sides by 2

2 * 15x/2 = 2 * 100

15x = 200 --------------- Divide both sides by 15

x = 200/15

x = 13⅓

So, 13⅓ cups of orange is needed by Priya

......................................................................................................................

Diego

......................................................................................................................

Cup of water = 1⅔

Cup of orange = ¼

If 1⅔ cups of water requires ¼ cup of orange juice concentrate

Then 100 cups of water would require x cup of orange

Representing the above statement mathematically

1⅔:¼ = 100:x

5/3 : ¼ = 100:x

5/3 ÷¼ = 100 ÷ x

5/3 * 4/1 = 100 ÷ x

20/3 =100/x----------------------- Multiply x to both sides

20/3 * x = 100/x * x

20x/3 = 100 ------------------------ Multiply 3 to sides by 3

3 * 20x/3 = 100 * 3

20x = 300 ------------- Divide both sides by 2

20x/20 = 300/20

x = 15

So, 15 cups of orange is needed by Diego

6 0
3 years ago
The SAT is standardized to be normally distributed with a mean µ = 500 and a standard deviation σ = 100. What percentage of SAT
Aliun [14]

Answer:

34.134%

68.268%

Step-by-step explanation:

Given that:

Mean (m) = 500

Standard deviation (s) = 100

Percentage between 500 and 600

P(500 < x < 600)

P(x < 600) - P(x < 500)

Z = (x - m) / s

P(x < 600)

Z = (600 - 500) /100 = 1

P(x < 500)

Z = (500 - 500) / 500 = 0

P(Z< 1) - P(Z < 0)

0.84134 - 0.5

= 0.34134

= 0.34134 * 100%

= 34.134%

B.) Between 400 and 600

P(x < 400)

Z = (400 - 500) /100 = - 1

P(x < 600)

Z = (600 - 500) / 500 = 1

P(Z< 1 ) - P(Z < - 1)

0.84134 - 0.15866

= 0.68268

= 0.68268 * 100%

= 68.268%

8 0
3 years ago
3. Continue the pattern with 4 fifths.
Elenna [48]

Answer:

I don’t have enough context clues to answer your question I’m afraid

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve the system of equations x+y= -13 and 4x + 6y = -72 by combining the<br> equations.
uranmaximum [27]

Answer:

Step-by-step explanation:

Fist you add -13 to 6y and than 4x that should be 69420

8 0
3 years ago
Other questions:
  • HELPP PLS
    5·1 answer
  • Ok serous question this has nothing to do with my other questions would you guys care if I committed ya know
    10·2 answers
  • Find the circumference of the circle. Use pi = 3.14. Question 6 options: 3 m 18.84 m 6 m 28.26 m
    13·2 answers
  • Jason baked 4 pans of brownies. He gave 1/4 of the brownies to his sister. How many pans of brownies did he give to his sister?
    9·1 answer
  • How do you solve 12x+24y+102=90
    12·2 answers
  • Most linear graphs are direct variation, unless they go through the origin.
    7·1 answer
  • A fitness center will install a square hot tub in a 6 meter by 6 meter room. They want the tub to fill no more than 75% of the r
    7·1 answer
  • ⚠️❗️⚠️❗️⚠️ 10 POINTS The people answering this get it wrong please get it right what is the area
    12·1 answer
  • In a month with 31 days, Google featured Doodles on 18 days.What percent of the month was this?Round to the nearest whole percen
    8·1 answer
  • Evaluate 5x2 – 2y3 when x = 2 and y = 4
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!