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sweet [91]
3 years ago
12

1) In a class of 30 children, 60% of the

Mathematics
2 answers:
Irina-Kira [14]3 years ago
5 0
There are 18 girls in that class
Tpy6a [65]3 years ago
4 0

Answer:

18 students in the class are girls

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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Radda [10]
This is what the diagram is saying
(-4)+(-9)= -13
6 0
2 years ago
(True or False) The set of ordered pairs {(6,4),(2,-5),(-2,4),(6,-4)} is a function
const2013 [10]

Answer:

False

Step-by-step explanation:

The same function input (the first number in the pair) cannot have two different outputs (the second number in the pair).

(6, 4) 4 is one output.

(6, -4) -4 is another output.

6 0
2 years ago
Angie and Becky each completed a separate proof to show that the measures of vertical angles AKG and HKB are equal. Who complete
Helga [31]

Answer:

Becky, because her justification for the second statement should be "definition of supplementary angles" rather than "angle addition postulate."

Step-by-step explanation:

Becky completed the proof incorrectly because her justification for the second statement is not totally correct.

Angle addition postulate does not really apply here, as the sum of 2 angles may not give you exactly 180°.

However, the second statement, m<AKG + m<GKB = 180° and m<GKB + m<HKB = 180°, can be justified by the "Definition of Supplementary Angles".

The sum of supplementary angles = 180°.

Therefore, Becky completed the proof incorrectly.

6 0
2 years ago
How many factors are in the expression p(q-1)^r
blagie [28]
Factors are things that you multiply so p is a factor and q-1 is a factor
7 0
3 years ago
Read 2 more answers
What is the value of the expression 4x+y2y−x when x = 2 and y = 4?
My name is Ann [436]
The answer should be the first one, 2. Do you need and explanation?
4x+y/2y-x

Start by replacing all of the variables. 
4(2)+4/2(4)-2

Now work multiply. 
8+4/8-2

Now add. 
12/6

That is your fraction. But you must simplify it. 

Its simplifies to 2. 
6 0
2 years ago
Read 2 more answers
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