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musickatia [10]
3 years ago
9

2/3 to twenty-firsts

Mathematics
1 answer:
nikdorinn [45]3 years ago
6 0

Answer:

14/21

Step-by-step explanation:

1. Find the value of x

Step 1: Write it as an equation.

  • \frac{2}{3}  = \frac{x}{21}

Step 2: Cross-multiply.

  • 2 * 21 = 3 * x
  • 3x = 42

Step 3: Divide both sides by 3.

  • \frac{3x}{3} = \frac{42}{3}
  • x = 14

2. Now that we know the numerator is 14 and the denominator is 21, we can write it as a fraction: 14/21.

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navik [9.2K]

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8 0
2 years ago
Solve the equation for all real solutions in simplest form.<br> 3x2 - 12x + 11 = x
Ivanshal [37]

Answer:

(13 + or - (sign) square root(37)) / 6

Step-by-step explanation:

First search up the quadratic formula which is

x = (- b + or - square root(b^2 - 4ac)) / 2a

and to find a, b, and c you need this formula

ax^2 + bx + c = 0 (btw this is the safest solution to finding your answer with a number in-front of a quadratic equation.)

Math:

a = 3, b = -13, c = 11

b = -13, because of the x on the other end of the equation as the equation above "ax^2 + bx + c = 0" you need the zero to proceed to this next step.

Side Note: You only take the number and not the variable, variables are x, y, w, z, or etc.

(- (- 13) + or - square root((-13)^2 - 4(3)(11) ) ) / 2 * 3

13 + or - square root(37) / 6

5 0
2 years ago
17.25 round up to ones
Irina18 [472]
17.24

Since 7 comes after 5 we need to round to the next number.....18.00

17.24 rounded to ones = 18.00

Hope I helped:P

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME!!!!!!!!<br> I WILL MARK YOU BRAINLIEST
AlekseyPX

Answer:

Step-by-step explanation:

Hope this helps :)

3 0
2 years ago
Any one good at factoring?
svetlana [45]
The student went wrong in step three.  the solutions should have been -3 and 5
8 0
3 years ago
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