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maw [93]
2 years ago
7

If 5x:(x-2) = 11:3 , find the value of x ?​

Mathematics
2 answers:
Zigmanuir [339]2 years ago
6 0

Answer:

5 whole number 1/2

Step-by-step explanation:

5x:(x-2)=11:3

(:)This simply means ''ratio''

5x/(x-2) = 11/3

(cross multiply)

11(x-2) = 3(5x)

11x-22 = 15x

collect like terms

15x - 11x = 22

4x = 22

x = 22/4, but it is best you put it as a Mixed number.

x = 5 whole number 2/4, which can be reduced to

x = 5 whole number 1/2

Masteriza [31]2 years ago
5 0

Answer:

x = -11/2

Step-by-step explanation:

The ratios need to stay the same

5x        11

----- = -------

x-2       3

Using cross products

5x*3 = (x-2) 11

15x = 11x - 22

Subtract 11 from each side

15x-11x = -22

4x = -22

x = -22/4

x = -11/2

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What is 10 8by13 add 4 24by49. these numbers are in mixed fraction​
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Answer:

7048/637

Step-by-step explanation:

10 8/13 + 4 24/49

138/13 + 220/49

taking LCM

(138*49 + 220*13) / (13*49)

7048 / 637

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3 years ago
A pattern calls for 21 yards of material and 1 1/4 yards of lining. how much total fabric is needed
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Which is the polynomial function of lowest degree with rational real coefficients, a leading coefficient of 3 and roots StartRoo
anastassius [24]

Answer:

a) f(x)=3x^{3}-6x^{2}-15x+30

Step-by-step explanation:

1) In this question we've been given "a", the leading coefficient. and two roots:

x_{1}=\sqrt{5}\:x_{2}=2

2) There's a theorem, called the Irrational Theorem Root that states:

If one root is in this form x'=\sqrt{a}+b  then its conjugate x''=\sqrt{a}-b. is also a root of this polynomial.

Therefore

x_3=-\sqrt{5}

3) So, applying this Theorem we can rewrite the equation, by factoring. Remembering that x is the root. Since the question wants it in this expanded form then:

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4 0
3 years ago
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Find the interest accrued on a $7500 loan with a 2.5% interest rate over 4 years
sukhopar [10]

The simple interest accrued is = $750

<h3>Calculation of simple interest</h3>

The principal amount of the loan = $7500

The rate at which the interest is paid is = 2.5%

The time that it will take to pay the interest = 4 years

Using the formula for Simple interest;

SI= P×T×R/100

SI = 7500×4 × 2.5/100

SI= 75000/100

SI=$750

Therefore, the interest accrued on a $7500 loan with a 2.5% interest rate over 4 years is = $750

Learn more about simple interest here:

brainly.com/question/20690803

#SPJ1

4 0
2 years ago
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