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astra-53 [7]
2 years ago
12

Which expression is equivalent to 5r+11r−2?

Mathematics
1 answer:
Readme [11.4K]2 years ago
7 0

Answer:

2(8r-1)

Step-by-step explanation:

collect like terms

5r+11r=16r

16r-2

then factor out a 2

2(8r-1)

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Lei had php 150. She spend php 48 for spaghetti and Php 12. For the drinks what percent of her money was left​
musickatia [10]

Answer:

She has 60% of money left.

Step-by-step explanation:

You have to find out how much Php that Lei has left :

Php 150 - Php 48 - Php 12 = Php 90

She has a remaining of Php 90. Next, you have to find the percentage by dividing hy original amount and then, multiply by 100 :

(90/150)×100 = (3/5)×100 = 60%

7 0
3 years ago
|x-20| if x&lt;-20<br> I need help with the opposite equation
yKpoI14uk [10]
-(x-20)
Basically it’s the same as your other question but your not adding twenty!
4 0
2 years ago
In a dog show, there will be a gold and silver medal awarded.There are 6 finalists. In how many ways can the 2 medals be awarded
svp [43]

Answer:

(6)(5) =

Step-by-step explanation:

30

3 0
3 years ago
In how many ways can 10 people be divided into three groups with 2, 3, and 5 people respectively?
Liula [17]

Answer:

2100

Step-by-step explanation:

In how many ways can a group of 10 people be divided into three groups consisting of 2,3, and 5 people?

First, you need to choose 4 people to fill the first group.

The number of ways is (104) which equals to 210.

Then, pick 3 more people out of the remaining 6 to be in the second group. And then, pick 3 more out of the remaining 3.

However, we need to divide it by 2, since we don’t really care on the order of selection of group.

(63)(33)/2=10

So, there are 210 x 10 = 2100 ways

6 0
3 years ago
Read 2 more answers
The type of equation given below is in point-slope form <br> y=1/2x-5 true or false
kykrilka [37]

Answer:

false

Step-by-step explanation:

point slope form : y - y1 = m( x - x1 )

the equation y = 1/2x - 5 does not follow this therefore the answer is false

the equation y = -1/2x - 5 is instead put in slope intercept form , y = mx + b

8 0
2 years ago
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