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BigorU [14]
3 years ago
10

What is the answer ?

Mathematics
1 answer:
alukav5142 [94]3 years ago
8 0

Answer:

2y

Step-by-step explanation:

Simplifying

21x + -42y = 0

Solving

21x + -42y = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '42y' to each side of the equation.

21x + -42y + 42y = 0 + 42y

Combine like terms: -42y + 42y = 0

21x + 0 = 0 + 42y

21x = 0 + 42y

Remove the zero:

21x = 42y

Divide each side by '21'.

x = 2y

Simplifying

x = 2y

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X/3+5=10 solve for x only type the numerical answer below
Artist 52 [7]

Answer:

x=15

Step-by-step explanation:

x/3=10-5

x/3=5

x=5*3

x=15

8 0
3 years ago
Read 2 more answers
What is the quotient of 6/7 divided by 3/14
bija089 [108]

Answer:

6/7 ÷ 3/14

= 6/7 × 14/3

= 2/7 × 14           (we cancelled 3 with 6)

=  2×2                (we cancelled 7 with 14)

= 4

hope it helps

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Simplify the expression
Grace [21]
(-5+8*i)+(-9+5*i) evaluates to <span>-14+13i</span>
6 0
3 years ago
16.
777dan777 [17]

Answer:

21,800 milliliters

Step-by-step explanation:

Here's a trick.

King Henry Died By Drinking Chocolate Milk.

King = Kilo, Henry = Hecto, Died = Deka, By = Base (liters, grams, meters), Drinking = Deci, Chocolate = Centi, Milk = Milli.

This helps to remember the order so you can move the decimal over the proper amount of times.

If you are starting at the base, and need to move to milli, you will move the decimal place 3 places to the right.

So for 21.8 liters = 21,800 milliliters

6 0
3 years ago
Each week, Darin's Lawn Service mows 90 lawns in 45 hours at a housing c
sweet [91]

9514 1404 393

Answer:

  6 h

Step-by-step explanation:

The bottom number in the table is half the top number. The missing value is 6 (hours).

__

I like to put the variable in the numerator of a proportion. Here, we can write it as ...

  t/12 = 45/90

Multiplying by 12 gives ...

  t = 12(45/90) = 12(1/2) = 6

It will take Darin 6 hours to mow 12 lawns.

4 0
3 years ago
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