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Aleksandr [31]
3 years ago
7

What is the number if 2/3 of 27 equal 25% of a number?

Mathematics
1 answer:
lina2011 [118]3 years ago
7 0

To solve this problem, we are going to set up an equation and let our unknown value be represented by the variable x. First, we must convert 25% into its decimal equivalent by dividing 25/100.

25/100 = 0.25

We should keep in mind that when we use the word “of” in math, it represents multiplication. This means that our equation should be set up with 2/3 multiplied by 27 on the left side equal to 0.25 times x on the right side, as modeled below:

(2/3)(27)=0.25x

To simplify this equation, we should perform the multiplication on the left side of the equation.

18 = 0.25x

Finally, we should divide both sides of the equation by 0.25 in order to isolate the variable x on the right side of the equation.

x = 72

Therefore, your answer and unknown number is 72.

Hope this helps!

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I need help! This pattern repeats every 4 terms. The pattern is square, hexagon, trapezoid, triangle. What is the shape in the 7
alina1380 [7]
<h3>Answer:  Trapezoid</h3>

==========================================================

Explanation:

There are two ways to do this problem.

Method 1 involves listing out the terms until we reach the seventh one.

  1. square
  2. hexagon
  3. trapezoid
  4. triangle
  5. square
  6. hexagon
  7. trapezoid
  8. triangle

We see that the trapezoid is term 7.

-------------

Method 2 is faster and the one I recommend.

Since the pattern repeats every 4 items, this means we divide by 4 and look at the remainder. Ignore the quotient entirely.

7/4 = 1 remainder 3

The remainder 3 means that the answer is found in term 3, which is the trapezoid.

6 0
1 year ago
Simplify this equation.<br> 6 + 7r - 4 × 11
weqwewe [10]
<em>6 + 7r - 4 </em>× <em>11
</em>
=<em> 7r + (6-4) </em>× <em>11
= 14r+11</em>
5 0
3 years ago
Read 2 more answers
I need help making the sentence make sense
Bingel [31]

Answer:

first line is mode second line is 21

4 0
3 years ago
Use a system of equations to solve this problem.
emmainna [20.7K]
We have to set up 2 equations:
A) x + y = 10 liters
B) .05x + .25y = 10 * .10

Multiply equation B) by -4
B) -.2x  - y = -4 then add to equation A)
A) x + y = 10 liters
.8x = 6 liters
x = 7.5 liters of 5%
y = 2.5 liters of 25%

6 0
3 years ago
I want to know the answer to an increase of 1.6% of $1252.00
Morgarella [4.7K]
It’s easy!
Since you’re increasing 1.6% to $1252 you write the expression as:
=1252+1.6% of 1252
=1252+(1.6/100)*1252
=1252+0.016*1252
=1252+20.032
=1272.032
That’s your final answer
4 0
2 years ago
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