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2 years ago

Multiply. 25.5 × 5.46

Mathematics

2 answers:

Oksana_A [137]2 years ago

7 0

Answer:

139.23

Step-by-step explanation:

ikadub [295]2 years ago

4 0

Answer:

The answer is ... 139.23

Step-by-step explanation:

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Jeremy wants to buy a backpack that costs $65. Luckily, the store is having a 35% off sale. What will be the sale price of the b

Leya [2.2K]

Answer:

42.25

Step-by-step explanation:

65*35%=22.75

65-22.75=42.25

7 0

2 years ago

A group of 100 students took a quiz. Their average score was 76 points. If the average score for the boys was 80 points and the

sveta [45]

Answer:

The number of girls participated in quiz is 40 .

Step-by-step explanation:

Given as :

Total number of students took quiz = 100

Average score of 100 students = 76 points

The Average score of boys = 80 points

The Average score of girls = 70 points

Let The number of boys participated in quiz = b

Let The number of girls participate in quiz = g

Now, According to question'

Total number of students took quiz = number of boys participated in quiz + number of girls participated in quiz

Or, b + g = 100 ........A

<u>Again</u>

∵ Average score of 100 students = 76 points

∴ Total score of 100 students = 76 × 100 = 7600

So, Average score of boys × number of boys participated + Average score of girls × number of girls participated = Total score of 100 students

Or, b × 80 + g × 70 = 7600

Or, 80 b + 70 g = 7600 .........B

Now, Solving equation A and B

(80 b + 70 g ) - 70 ×( b + g ) = 7600 - 70 × 100

I.e (80 b - 70 b) + (70 g - 70 g) = 7600 - 7000

Or, 10 b + 0 = 600

∴ b = $\dfrac{600}{10}$

i.e b = 60

So, The number of boys participated in quiz = b = 60

Put the value of b into eq A

∵ b + g = 100

So, g = 100 - b

Or, g = 100 - 60

i.e g = 40

So, The number of girls participated in quiz = g = 40

Hence, The number of girls participated in quiz is 40 . Answer

6 0

2 years ago

Each side of the square below is 8 inches. What is the probability that a point chosen at random in the square is in the blue re

Maksim231197 [3]

If each side of the square below is 8 inches, the probability that a point chosen at random in the square is in the blue region would be 0.25.

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3 years ago

Read 2 more answers

What am I supposed to do hear im confused

natulia [17]

Answer:

Step-by-step explanation:

In No.1

First you find the total number of girls which is 56-20 =36 girls in total

So to get number of boys who watched tennis 20-13=7 boys watched tennis

To get number of girls who didnt watch you do 36-17=19 girls who watched

Then add o get the totals

No.2

First you get the total number of male 80-47=33 males

Next you find the number of females doing phyisics 33-19=14 females

Next you find the number of females doing chemistry by 47-(18 + 14)=15 females

To get the number of males diong chemistry 21-15=6 males

Number of males doing biology 33-(19+6)=8

Then find the remaining totals

No. 2 (b)

Because there is a high number of students doing physics and most of them are female

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3 years ago

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Find the surface area Of the figure. 9 cm 1 cm Insert Answer 5 cm 5 cm 1 cm <br>

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2 years ago