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Maksim231197 [3]
3 years ago
8

Which of the following options have the same value as 70% of 80?

Mathematics
2 answers:
snow_tiger [21]3 years ago
7 0
56 is the answer so it's A, C and E.
lys-0071 [83]3 years ago
3 0
I believe the answers are: A C E
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Yuet solved the equation 6 a minus 2 b = 12 for a. Her steps are shown below. 1. Subtract 2b: 6 a = 12 minus 12 b 2. Divide by 6
Ber [7]

Question:

Yuet solved the equation 6a - 2b = 12 for a.

Her steps are shown below.

1. Subtract 2b: 6a = 12 - 2b

2. Divide by 6: a = 2 - \frac{b}{3}

Answer:

In step 1 she needed to add 2b to both sides of the equation.

Step-by-step explanation:

Given:

The above steps shows how Yuet solved an equation

Required:

True statement about Yuet's work

The implication of the statement is to state what Yuet should have done instead of what she did.

In step 1, she subtracted 2b from both sides of the equation; this is wrong.

Instead of subtracting, she ought to add 2b to both sides of the equation.

The correct steps and result is as follows:

1. Add 2b: 6a = 12 + 2b

2. Divide by 6: a = 2 + \frac{b}{3}

Hence, we can conclude that in step 1 she needed to add 2b to both sides of the equation.

4 0
3 years ago
Read 2 more answers
Find the zeros of the polynomial function: <br> f(x) = 9x^3 - 27x^2 - 4x + 12.
hichkok12 [17]

Answer:

  {-2/3, 2/3, 3}

Step-by-step explanation:

The equation can be factored by grouping.

  f(x) = (9x^3 -27x^2) +(-4x +12)

  f(x) = 9x^2(x -3) -4(x -3)

  f(x) = (9x^2 -4)(x -3)

We recognize the first factor as the difference of squares, so know it can be further factored to give ...

  f(x) = (3x -2)(3x +2)(x -3)

The zeros are the values of x that make these factors be zero:

  3x -2 = 0   ⇒   x = 2/3

  3x +2 = 0   ⇒   x = -2/3

  x -3 = 0   ⇒   x = 3

The zeros of the polynomial are x = -2/3, 2/3, 3.

3 0
3 years ago
What is the value of x 4x-1+2x-9=152
Aleonysh [2.5K]

Rearrange:


Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :


                    4*x-1+2*x-9-(152)=0

Step by step solution :

Step  1  :

Pulling out like terms :


1.1     Pull out like factors :


  6x - 162  =   6 • (x - 27)

step 2

Solving a Single Variable Equation :


2.2      Solve  :    x-27 = 0


Add  27  to both sides of the equation :

                     x = 27

One solution was found :

                  x = 27




brainliest plzzz worked really hard on this thx god bless

5 0
3 years ago
Which algebraic expression represents the difference of fifty four and seven times a number
givi [52]
7x-54 mark as branliest
3 0
2 years ago
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What. is 182.886 rounded to the nearest 100
vampirchik [111]
The answer is 182.89
4 0
3 years ago
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