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kirza4 [7]
3 years ago
5

If the 16 boys in the classroom are 40% of the class how many students are there in the class

Mathematics
2 answers:
Galina-37 [17]3 years ago
8 0

Answer:

56

Step-by-step explanation:

40+16=56

AlladinOne [14]3 years ago
5 0

Answer:

40

Step-by-step explanation:

Set up the equation.

Let the full number of people in the classroom = x

(40%) x = 16                Change 40% to a fraction

(40/100) x = 16            Reduce 40/100 to a decimal

0.4 x = 16                     Divide by 0.4

0.4/0.4 x = 16/0.4

x = 40

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Margaret bought a video game, her father gave her 0.2 of the money, her aunt gave 0.5 of the money and she saved the rest. She s
const2013 [10]

Answer:

if Im correct it should be $8.40

Step-by-step explanation:

why well if you think of breaking down by say 1/4 of 168 all you do is divide 4 which is the whole amount by 0.2 which is the amount the father gave her so 4/0.2= 20 the you take your whole 168 and divide by 20 which the whole number for 0.2 the your answer should be this 168/20= 8.4 which then i assumed it was $8.40 hopefully that is correct hehe

5 0
2 years ago
What is the area of a trapezoid ABCD with bases AB and CD
Delvig [45]
A= a+b/2h =10+20/2 x13 =195

I believe 195 is correct if not, I’m so sorry
3 0
2 years ago
Read 2 more answers
¿cuales tienen solo un eje de simetría?<br><br><br>English:Which have only one axis of symmetry?​
Neporo4naja [7]

Answer:

if your looking for a shape it would be a kite if your looking for a line it would be a parabolas.

si buscas una forma sería una cometa, si buscas una línea sería una parábola.

Step-by-step explanation:

7 0
2 years ago
What is the absolute value of negative 6
dimaraw [331]
The absolute value of negative 6 is 2
8 0
3 years ago
Read 2 more answers
I need help with 20.
irinina [24]

Step-by-step explanation:

why ? you did it right there already.

the numerator is the top part of the fraction, the "counting" part (how many units of a certain type or size are there).

the denominator (the bottom part) is defining the type or size of units described by the fraction.

so, we are adding 4 to the numerator of 2/5, making it (2+4)/5 = 6/5

what do we need to add to the denominator (the bottom part) to make the fraction have the value of 1/2 ?

so, what x would make 6/x = 1/2 ?

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so, we need to get 12 in the denominator, where we have currently 5.

therefore, we need to add 12-5 = 7 to it.

so that

6/(5+7) = 6/12 = 1/2

3 0
2 years ago
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