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VikaD [51]
3 years ago
13

Circle equal groups to solve. count the number of items in 1 group.

Mathematics
1 answer:
AleksAgata [21]3 years ago
3 0
Can you rephrase the question please?
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If the teacher has 30 students and 10% left,how much students does she have now
garri49 [273]

Answer:

She has 27 students now.

Step-by-step explanation:

Given :

The teacher has 30 students

10% students left.

To find : how much students does she have now?

Solution :

Since we are given that teacher has 30 students .

And 10% of students left

⇒ 10% of 30


⇒\frac{10}{100} *30


⇒\frac{300}{100}


⇒3


Thus, 3 students left .

She had 30 students . three students left.

So, now she have 30 - 3 = 27 students .

Hence she has 27 students now.


8 0
3 years ago
Read 2 more answers
Translate the sentence into an equation.
Nimfa-mama [501]
2 (x - 5) = 8

To solve, you use the distributive property as shown below!! :)

2x - 10 = 8
2x = 18
x = 9

Hope this helped you :)
3 0
3 years ago
There are 84 players on a football team. The ratio of offensive players to defensive players is 4 to 3. How many offensive playe
djverab [1.8K]
42 bcz idrc nvm bih idrc abt life
6 0
3 years ago
. Write an equation that is perpendicular to y=2x – 1 and has y-intercept of -3
blagie [28]

The answer is very simple .

First you need to determine the slope, which is the reciprocal of the first line.

Then,

y = mx + b

m => -1/m

The perperdicular line has a new slope equal to m = -1/2

In the formula (y - y1) = m ( x - x1 ) + b , you should sustitude this value.

So the final equation will be

-3 = -1/2 (0) + b

b = - 3

y = (-1/2)x - 3

That is the solution

6 0
1 year ago
The planet Venus has a mass of 4.869 ∙ 1024 kilograms. Use scientific notation to express the planet’s mass in milligrams. 1 kil
Ostrovityanka [42]
<span>To do this you need to multiple 1,024 by 1,000,000 to get 1,024,000,000 and then convert it to scientific notation. For that you need to know how many places there are after the first number. In this case it is 9. This will be 1.024 x 10^9. You have to remember that it is to the power of however many numbers are after the first. So even though we show 3 digits after the . we still have to include those in the power.</span>
7 0
3 years ago
Read 2 more answers
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