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3 years ago

What is the reason for each step in the solution of the equation?

2 answers:

6 0

2x-1=4(x+1) Given. This is the expression you were originally given. 2x-1=4x+4 Distributive Property You distributed the 4 in the subexpression 4(x + 1) to make 4x + 4 2x=4x+5 Addition or Subtraction Property of Equality You added 1 to both sides of the equation. â’2x=5 Addition or Subtraction Property of Equality You subtracted 4x from both sides of the equation. x=-5/2 Multiplication or Division Property of Equality You divided both sides by -2.

Mkey [24]3 years ago

4 0

Answer:

2x - 1 = 4(x + 1) Given

2x - 1 = 4x + 4 Distributive Property

2x = 4x + 5 Addition or Subtraction Property of Equality

-2x = 5 Addition or Subtraction Property of Equality

x = -5/2 Multiplication or Division Property of Equality

- I took the test, these should be right.

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8 = 3a – 4 what is value of a ?

expeople1 [14]

Answer:

a=4

Step-by-step explanation:

8=3a-4

12=3a

a=4

7 0

2 years ago

Giving brainlist pls help Complete the table.

elena-s [515]

Answer:

(Since 3.14 seems more reliable, I'll use that for all four instead)

A: 17.6 ft

B: 81.6 mm

C: 9 cm

D: 12 in

Step-by-step explanation:

$2(2.8)*3.14\\5.6 * 3.14\\17.584 approx. = 17.6$

$2(13)*3.14\\26 * 3.14\\81.64 approx. = 81.6$

$\frac{56.5}{6.28}=\frac{2825}{314}=8\frac{313}{314}approx. = 9$

$\frac{75.4}{6.28}=\frac{1885}{157}=12\frac{1}{157}approx. = 12$

4 0

2 years ago

Write and solve an equation to answer question 28 is 35% of what number

sweet-ann [11.9K]

Answer:

Step-by-step explanation:

i did this question im positive.

3 0

2 years ago

What is the solution to this inequality? −4x−8>−20

77julia77 [94]

Answer:

x < 3

Step-by-step explanation:

−4x − 8 > −20

Add 8 to both sides.

-4x > -12

Divide both sides by -4. Remember that when you multiply or divide both sides of an inequality by a negative number, the direction of the inequality sign changes.

-4x/(-4) < -12/(-4)

x < 3

4 0

3 years ago

Work out the circumference of this circle give your answer in terms of pi and state it’s units the diameter is 14cm

zalisa [80]

Answer:14pi and 43.98 (2dp)

Step-by-step explanation:

circumference =2xpixr

radius = 14 divide by2 =7

2x pi x 7=14pi

14pi =43.98229715

=43.98 (2dp)

4 0

2 years ago