3 years ago

It's a math riddle

Mathematics

2 answers:

emmainna [20.7K]3 years ago

8 0

Your brother would be nine years old.

strojnjashka [21]3 years ago

7 0

I believe he would be 9 sorry if its wrong I tried I am not good with division

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O is the midpoint of segment IU. If I is (-7, 2) and O is (5, -8), what are the coordinates of U?

vaieri [72.5K]

Answer:

(17 , -18)

Step-by-step explanation:

5 = (-7 + x) / 2

x = 17

-8 = (2 + y) / 2

y = -18

3 0

2 years ago

Y² - 11y + 21.25 = 0

Elodia [21]

Answer:

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Step-by-step explanation:

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2 years ago

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In circle o, mZWBY = 72°.

likoan [24]

Answer:

Answer is B. 36 degrees

Step-by-step explanation:

From the diagram,

angle WBY = 2 × angle WXY

angle WBY = 72°

angle WXY =

$\frac{angle \: WBY}{2}$

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3 years ago

Riya got 10 correct answers and ten incorrect answers. what is her score if each correct answer is awarded with 3 marks and each

Natasha2012 [34]

Answer:

Step-by-step explanation:

Riyas score = ( correct answer × mark) + ( incorrect answer × mark lost )

= ( 3× 10) + ( -1 ×10 )

= 30 -10

=20

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3 years ago

If a dozen exercise books cost $144, what will 14 of the same books cost? *

Bad White [126]

Answer:

$168

Step-by-step explanation:

1 dozen = 12

proportions

12 books ⇔ $144

14 books ⇔ $B

B = 144*14/12

B = $168

7 0

2 years ago