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3 years ago

Couldn't find science but this is a science question.

Mathematics

1 answer:

Svetllana [295]3 years ago

8 0

Answer:

D.Water can cause rocks to break into sediments through mechanical weathering.

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27 1/5 over 4/5 as a unit rate

REY [17]

Answer:

$\frac{34}{1}$ or $34$

Step-by-step explanation:

we know that

To find the unit rate divide 27 1/5 by 4/5

but first

Convert mixed number to an improper fraction

$27\frac{1}{5}=27+\frac{1}{5}=\frac{27*5+1}{5} =\frac{136}{5}$

$\frac{136}{5}:\frac{4}{5}=\frac{136}{4}=\frac{34}{1}$

8 0

3 years ago

Please solve this by solving systems by elimination 6x+3y=-18 7x+7y=0

gavmur [86]

Answer:

Step-by-step explanation:

6x + 3y = -18

Taking 3 common from left side

so, 3(2x+y) = -18

2x+y = -18/3

2x+y = -6 (equation 1)

and, 7x + 7y = 0

Taking 7 as commom from left side

7(x + y) = 0

x + y = 0/7

x + y = 0 (equation 2)

now , by using elimination method

subtracting equation2 from equation1

2x + y - (x + y)= -6 - 0

2x + y - x - y = -6

x = -6

so, x = -6

substituting value of x in equation 1

2(-6) + y = -6

-12 + y = -6

y = -6 +12

y = 6

hence, the value of x = -6

and value of y = 6

7 0

3 years ago

klasskru [66]

Answer:

2. y - 2 = -1/6(x + 10)

3. y - 1 = -1/6(x + 4)

5. y = -1/6x + 1/3

Step-by-step explanation:

hope this helps!

8 0

2 years ago

Safety rent a car rents an intermediate size car at a daily rate of $21.95 plus $.19 per mile. City rentals rents an intermediat

Katen [24]

So you can use

$21.95 + $.19x = $18.95 + $.21x

7 0

3 years ago

Three out of every 20 students in ms. jones’ Math class earned a grade of A. What percent of the students earned a grade of A?

erica [24]

Answer:

15%

Step-by-step explanation:

3/20x100=15

6 0

2 years ago