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
Deffense [45]
3 years ago
11

2x+7=5y-9 please help very urgent ik very lost :,)

Mathematics
2 answers:
lara31 [8.8K]3 years ago
8 0

Answer:

5/2y - 8

Step-by-step explanation:

Step 1: Add -7 to both sides.

2x+7+−7=5y−9+−72x=5y−16

Step 2: Divide both sides by 2.

2x2=5y−162x=52y−8

Paraphin [41]3 years ago
6 0

Answer:

too lazy to do the math but yk

Step-by-step explanation:

ok so first you wanna make sure you isolate variables, to find x you get

2x+7=5y-9

2x=5y-2

x=(5y-2)/2

plug that into the equation, then you get the y value, which you can put into the equation again (by equation i mean 2x+7=5y-9)

then you have both x and y

You might be interested in
SOMEONE HELP ME OUT ASAP PLEASE
goldenfox [79]

Answer:

7

Step-by-step explanation:

because when you divide with the coeficient it sums out to be 7

7 0
2 years ago
Please help!! due soon!
Mamont248 [21]

Answer:  D.  (-4, -2)

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

Rotating 180° about the origin means the signs for the x- and y-values are opposite.

(x, y) → (-x, -y)

(4, 2) → (-4, -2)

6 0
4 years ago
Tutorial C<br> A 3-yard roll of aluminum foil costs $4.14. What is the price per<br> foot?
Marta_Voda [28]

Answer:

$.46 or 46 cents per foot

Step-by-step explanation:

3 yards = 4.14

1 yard is 3 feet

3 yards is 9 feet

4.14 ÷ 9 = .46

5 0
2 years ago
What's the area of a circle with diameter 18 units? Question 8 options: A) 9π units2 B) 81π units2 C) π units2 D) 18π units2
Anna [14]

Answer:

B) 81π units²

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Geometry</u>

Radius of a Circle Formula: r = d/2

  • r is radius
  • d is diameter

Area of a Circle Formula: A = πr²

Step-by-step explanation:

<u>Step 1: Define</u>

Diameter <em>d</em> = 18 units

<u>Step 2: Manipulate Variables</u>

Radius <em>r</em> = 18 units/2 = 9 units

<u>Step 3: Find Area</u>

  1. Substitute in <em>r</em> [Area of a Circle Formula]:                                                       A = π(9 units)²
  2. [Area] Evaluate exponents:                                                                              A = π(81 units²)
  3. [Area] Multiply:                                                                                                  A = 81π units²
6 0
3 years ago
Kaylen earned $14.87 selling cookies and $7.76 selling
tatuchka [14]
Kaylen has $12.63 left.

$14.87 + $7.76 = $22.63
$22.63 - $10.00 = $12.63
4 0
3 years ago
Other questions:
  • 15 less than 4 times a number is 9 find the number
    12·2 answers
  • For Sue’s party, her family rented a bouncy house for $150 plus $2 per child, c.
    10·1 answer
  • Hi i need help with 18- 20
    7·1 answer
  • Which property is illustrated by the following statement statement
    10·2 answers
  • The original price of a pair of shoes is $36.00. Edward buys the shoes for 13% off its original price. Two weeks later Chad buys
    13·2 answers
  • A recipe for stew calls for 2 pounds of beef to serve 4 people. Gina wants to serve 8 people. How many pounds of beef should she
    12·2 answers
  • 8. Sabrina uses 9 inches of ribbon to make one bow. Sabrina buys 7 packets
    10·1 answer
  • Good morning!
    10·1 answer
  • Sarah took a 20? Test and got 17 problems correct what percent did she get
    5·2 answers
  • Pls provide the steps , brainliest to whoever gets it right .
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!