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Kisachek [45]
3 years ago
9

Simplify the expression explain each step 10+(2+y)

Mathematics
1 answer:
cestrela7 [59]3 years ago
3 0

Answer:

12y

Step-by-step explanation:

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Enter the values for the highlighted variables that show how to subtract the rational expressions correctly:
LenKa [72]

Answer:

a = 6

x^2 + 6x is equal to x(x+6)

b=2

Denominator and numerator of the first term are multiplied by x. 

c=6

Second term is multiplied by (x-6)/(x-6)

d=2

Now that they have the same denominator, the two terms are combined. 2 is the coefficient of the first term

e=6

In the same way as d is carried over from b, e is carried over from c. 

f = 6

2x - x + 6 = x + 6

g = 1 

We factor out the (x+6) from the numerator and denominator

6 0
3 years ago
Anita got 4 problems wrong on a test of 36 questions. what percent of the questions did she get correct
pickupchik [31]
The answer would be about 89% 
to solve this problem first you would have to subtract 4 from 36 to get 32 because you want to know how many she got right first .
so you put 32 over 36 ( the number she got right over the total number of questions ) and n ( the number you don't know yet ) over 100 . that will be the percent .
next all you have to do is cross multiply 32 times 100 and 36n , to get 3200 and 36n . 
now you have to divide 3200=36n by 36 so you get n by its self but you have to divide on both sides of the equal sign .
when you divide you will then get 88 with a lot of remainder 8's so you would just round up to 89 .
finally you know n = 89% so she got 89% of her questions right .
4 0
3 years ago
1/5x - 4 = x - 20 / 5
Firlakuza [10]

Answer:

x=0

Step-by-step explanation:

solve for x by simplifying both sides of the equation then isolating the variable

5 0
3 years ago
Robert stands atop a 1,380-foot hill. He climbs down, reaching the bottom of the hill in 30 minutes. What is Robert’s average ra
creativ13 [48]

The answer is C. -46

Hope this helps:)

4 0
3 years ago
Read 2 more answers
Help pls i don’t get it
Assoli18 [71]

Answer:

A = 22.5 m²

Step-by-step explanation:

longest side length

b = √((-7 + 4)² + (-1 - 8)²) = √90

other sides

a = √((-1 + 7)² + (2 + 1)²) = √45

height

h = √((√45)² - (½√90)²) = √22.5

Area of triangle

A = ½bh = ½√90√22.5 = 22.5 m²

a little math shows that this triangle is a tilted half of a square with sides √45

4 0
2 years ago
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