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3 years ago

a contractor is mixing concrete and mixed 3 parts concrete and 9 parts water. How much water is needed for 12 parts concrete?

Mathematics

1 answer:

weeeeeb [17]3 years ago

5 0

Answer:

36 parts water

Step-by-step explanation:

3/9 = 1/3 = for every 1 part concrete, it's 3 parts water.

12/x = 1/3; x = 36

so, 12 x 3 = 36

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What is another way to write 11/5 ths

lorasvet [3.4K]

There are two other fine ways to write 11/5 .

Ten of those fifths make 2 wholes, so 11/5 can be written as 2 and 1/5 .

Or you could do the division that the fraction shows.
Divide 11 by 5, and find the other way to write it . . . . . 2.2 .

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3 years ago

Write the following equation in slope-intercept form. - y + 6 = 0 y = - 6/5 y = + 6 y = 5/6

irinina [24]

Answer:

y = +6

Step-by-step explanation:

-y + 6 = 0

Subtract 6 from both sides;

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2 years ago

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dmitriy555 [2]

Answer:

Step-by-step explanation:

Given, 

Radius of the cylinder = 3cm

Height of the cylinder = 3cm

Therefore, 

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3 years ago

Read 2 more answers

Homework Progress 107 / 285 A sequence has three terms. Its term-to-term rule is multiply by 6 and then add 13 a)

____ [38]

Answer:

It's C

Step-by-step explanation: I took the test and got it wrong

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2 years ago

10x + 4y = 24 6x +12y = 48 What is the value of y? * A. 7 B. 7/2 C. 1 D. -7/2

ziro4ka [17]

Answer:

Step-by-step explanation:

1) lets use elimination to solve this:

multiply 10x+4y=24 with 3 in order to get "4y" into "12y"

3(10x+4y=24)

30x+12y=72

now subtract both equations to eliminate 'y"

30x+12y=72

6x+12y=48

---------------------

24x=24

x=1

now substitute 1 in the above equation:

6(1)+12y=48

6+12y=48

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y=7/2

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2 years ago