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rewona [7]
3 years ago
15

Select the expression equivalent to (-4x + 4.2y) - (-7x + 3.4y)

Mathematics
1 answer:
Alina [70]3 years ago
4 0

Answer:

3x + 0.8y

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>

Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

(-4x + 4.2y) - (-7x + 3.4y)

<u>Step 2: Simplify</u>

  1. [Distributive Property] Distribute negative:                                                    -4x + 4.2y + 7x - 3.4y
  2. Combine like terms (x):                                                                                    3x + 4.2y - 3.4y
  3. Combine like terms (y):                                                                                    3x + 0.8y
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Natalija [7]

Answer:

0.5%

Step-by-step explanation:

A shop keeper sells an article for 400

He purchases it for 402.

Therefore, loss = cost price - selling price

402 - 400 = 2

% loss =

loss/cost price x 100%

2/402 x 100%

= 200/402

=0.498

=0.5%

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
1/3(12-6x)=4-2x I need help pls
Oksi-84 [34.3K]

Answer:

no solution

Step-by-step explanation:

1/3(12-6x)=4-2x

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3 years ago
In the first half of a basketball game, a player scored 9 points on free throws and then scored a number of 2-point shots. In th
KatRina [158]

This question is incomplete

Complete Question

In the first half of a basketball game, a player scored 9 points on free throws and then scored a number of 2-point shots. In the second half, the player scored the same number of 3-point shots as the number of 2-point shots scored in the first half. Which expression represents the total number of points the player scored in the game?

a) 2x + 3x + 9

b) 2x + 3 + 9

c) 2x + 3x + 9x

d) 2 + 3x + 9

Answer:

a) 2x + 3x + 9

Step-by-step explanation:

Let the number of points shots a player scores = x

In a free throw, the player scored 9 points = 9

The player also scored a number of 2-point shots = 2x

In the second half, the player scored the same number of 3-point shots as the number of 2-point shots scored in the first half = 3x

The expression represents the total number of points the player scored in the game =

2x + 3x + 9

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3 years ago
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