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nalin [4]
3 years ago
12

Square root of (2x-3)2=121

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
7 0

Step-by-step explanation:

2x_3=121

121_3=118

118÷2=56

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the ratio of men to women in a certain factory is 3 to 4. There are 198 men. How many workers are there?
vredina [299]
P r o p o r t i o n s

3:4 = 7

3/198 = 7/x

solve for x using cross multiplying

3/198 = 7/x

198(7) = 3x
1386 = 3x
/3         /3
   462 = x

Therefore, there are 462 workers.

Proof:

3/198 = 4/x
198(4) = 3x
792 = 3x
/3        /3
264 = x

264 + 198 = 462.

264 / 4 = 66
198 / 3 = 66
462 / 7 = 66

8 0
3 years ago
Moes sells 10 tacos for $8.49 or Taco Bell sells 6 of the same kind of taco for $5.40. Which is a better deal? Clearly show the
Degger [83]

Answer:

The one that sells 10 tacos for $8.49

To get the better deal, you should find the selling prices for a single tacos in both cases  and compare the amounts.

In the first one, 10 tacos for $8.49

This means 1 tacos sells for $8.49/10 = $0.849

In the second one, 6 for $5.40, this means for a single tacos, the selling price is $5.40/6 =$0.9

The better deal is the first one that sells one taco for $0.849 compared to the second one that sells one tacos for $0.9

5 0
3 years ago
Read 2 more answers
The ratio of the side lengths of a quadrilateral is 3:3:5:8, and the perimeter is 380cm. What is the measure of the longest side
castortr0y [4]

Answer:

160

Step-by-step explanation:

Add the ratios together to get the sum of them is 19.  Since the perimeter is 380, divide 380 by 19 to get 20.  

The shortest side is 3(20) = 60,

the next side is 5(20) = 100, and

the longest side is 8(20) = 160

3 0
2 years ago
Consider the system of equations. 20 POINTS NEED HELP ASAP
Alex

- 5x - 1 = 2x + 6

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7x = -7

x = -1

3 0
2 years ago
Which two values of x are the roots of the polynomial below? <br> x^2+5x+11
In-s [12.5K]

Answer:

x = -5/2 + i√19 and x = -5/2 - i√19

Step-by-step explanation:

Next time, please share the possible answer choices.

Here we can actually find the roots, using the quadratic formula or some other approach.

a = 1, b = 5 and c = 11.  Then the discriminant is b^2-4ac, or 5^2-4(1)(11).  Since the discriminant is negative, the roots are complex.  The discriminant value is 25-44, or -19.

Thus, the roots of the given poly are:

      -5 plus or minus i√19

x = -----------------------------------

                     2(1)

or x = -5/2 + i√19 and x = -5/2 - i√19

5 0
3 years ago
Read 2 more answers
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