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3 years ago

I honestly have zero clue how to do this one please help

Mathematics

2 answers:

professor190 [17]3 years ago

8 0

Well lets think about the definition for a moment. It states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, it states that those triangles are now congruent. So this would most likely be answer A.

Ad libitum [116K]3 years ago

4 0

The best choice would probaly be b but im not positive

if its not b then its a

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A church rings its bells every 15 minutes, the school rings its bells every 20 minutes and the day care center rings its bells e

Dima020 [189]

Answer:

5 : 00 PM

Step-by-step explanation:

Given,

Church ring bells every 15 minutes,

School rings its bells every 20 minutes,

And, day care center rings its bells every 25 minutes,

Thus, the number of minutes after which they will ring together = LCM (15, 20, 25)

∵ 15 = 3 × 5,

20 = 2 × 2 × 5,

25 = 5 × 5,

Thus, LCM (15, 20, 25) = 300

Now, 1 minute = 1/60 hours ⇒ 300 minutes = 5 hours,

Hence, after 5 hours they will ring together,

If they rang at 12:00 PM,

Then they will ring after 5 hours that is 5:00 PM.

7 0

3 years ago

5/11 of students at school are girls if there are 1551 students in school how many are boys

dexar [7]

If 5/11 are girls, then 6/11 are boys (the total has to be 11/11, which equals 1).

Multiply the fraction of boys by the total number of students.

(6/11)*1551 = 846

Therefore, 846 of the students in the school are boys.

8 0

3 years ago

Help with finding proofs

nadya68 [22]

Answer:

Statement: ∠XYZ = ∠ABC Reasons: Below

Step-by-step explanation:

For two angles to be complementary means that the sum of the two angles is equivalent to 90°. When an angle has one of those little squares, that means the angle is a right angle, or a 90° angle. Also, since it's given that line segment AB and line segment BC are perpendicular, this means the two lines/line segments cross each other at a right angle, which also proves that line segment AB and BC have a 90° angle.

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1 year ago

Joy uses 9.5 pints of blue paint and white paint to paint her bedroom walls. 3 5 of this amount is blue paint, and the rest is w

Nana76 [90]

Answer:

6 pints of white paint she used to paint her bedroom walls.

Step-by-step explanation:

Joy uses 9.5 pints of blue paint + white paint.

Joy used 3.5 pints of blue paint.

So, white paint used = total paint - blue paint used

Plug in the known values into the equation.

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3 years ago

Who knows the x and y values of x+5y=-12 5x+4y=24

musickatia [10]

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5(-12-5y) +4y = 24
now you solve for y
-60 - 25y + 4y =24
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Now you plug in y back into either equation and you get x=8

7 0

3 years ago