3 years ago

a man saves Rs 5400 in a month which is 30% of his monthly income. how much does Spain in a month??

Mathematics

1 answer:

kaheart [24]3 years ago

8 0

Answer:

solution in attachment

hope it helps

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Don't understand the question.

Finger [1]

The solution is D.
From the top right & left corners drop a perpendicular line to the base forming right triangles on the right and left sides. This makes the center [art of the base 12 and the base of the triangles 7. Use the Pythagorean Theorem to find the altitude, which is the same as the height.
7^2 + b^2 = 25^2
b^2 = 25^2 - 7^2
b = 24

8 0

4 years ago

Read 2 more answers

What is the value of the discriminant for the quadratic equation -3=-x^2+2x? discriminant =b^2-4ac

Elena L [17]

Answer:

Step-by-step explanation:

$-x^2+2x=-3\qquad\text{add 3 to both sides}\\\\-x^2+2x+3=0\\\\a=-1,\ b=2,\ c=3\\\\\text{Substitute to}\ D=b^2-4ac:\\\\D=2^2-4(-1)(3)=4+12=16$