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Anna007 [38]
3 years ago
14

what to radios for rupees 6000 he sold one of them at a profit of 20% and the other at the loss of 10% If he gained 2% on his to

tal outley. at what price did he buy it radio​
Mathematics
1 answer:
Inessa05 [86]3 years ago
6 0

Let 1st radio price will be X And 2nd radio price is Y. So both radio price is 6000rs

Writting sentence 1) into equation we get

X+Y=6000……..………………..(1)

1st radio sold at 20% profit & 2nd radio sold at 10% loss. And shopkeeper gained 2% profit on 6000rs investment

By writing sentence 2) into equation we get

1.2X+0.9Y=6120(102% 6000)………. (2)

By solving 1 & 2

We get

X=2400

Y=3600

I hope this help you

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Which of the following constants can be added to x2 - 3x to form a perfect square trinomail?
serious [3.7K]

The constant that can be added to x^2 - 3x to form a perfect square trinomial is 2\frac{1}{4}

The given expression is

x^2 - 3x

To form a perfect square trinomial

(a-b)^2 =a^2-2ab+b^2

The given expression is

x^2 - 3x

first we have to add a constant term with it

x^2 - 3x + z

By comparing the given expression and the perfect square trinomial

a^2 =x^2

a = x

Similarly

-2ab = 3x

where know a =x

Then,

-2b = 3

b = -3/2

Similarly

b^2 = z

(\frac{-3}{2})^2 = z

9/4 = z

Convert the simple fraction to mixed fraction

9/4 = 2\frac{1}{4}

Hence, the constant that can be added to x^2 - 3x to form a perfect square trinomial is 2\frac{1}{4}

The complete question is :

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

1\frac{1}{2},2\frac{1}{4} and 4\frac{1}{2}

Learn more about perfect square trinomial here

brainly.com/question/16615974

#SPJ1

4 0
1 year ago
Please Help!!!
Mila [183]

Answer:

Step-by-step explanation:

sum of angles of triangle=180

90+50+B=180

B=180-140

<h2>B=40</h2>

sin50= 0pp/hyp

sin50= 24/c

c=24/sin 50

<h2>c=31.3</h2>

sin B= opp /  hyp

sin 40 = b/c

<h2>b= 20.1</h2>
4 0
4 years ago
Find the quadratic function that has roots of -9 and 3 and a vertex of (-3,-36)
natita [175]
Y=(x+9)(x-3)+c
∵(-3,-36)lies on it.
-36=(-3+9)(-3-3)+c
-36=(-6)(-6)+c
-36=36+c
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y=(x-9)(x+3)-72
y=x^2+3x-9x-27-72
y=x^2-6x-99
6 0
3 years ago
What is 3/5 written as a decimal?<br><br> a 0.12<br> b 0.3<br> c 0.6<br> d 1.67
horsena [70]

Answer: 0.6 so c

Step-by-step explanation:

7 0
3 years ago
Solve the following equation algebraically: 3 x squared = 375 a. x almost-equals 49 b. x almost-equals plus-or-minus 49 c. x alm
d1i1m1o1n [39]
3x^2=375
x^2=125
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c or d, they say the same thing
4 0
3 years ago
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