All categories

3 years ago

An easy question all wrong or unhelpful or no-work answers will be reported.

1 answer:

8 0

Substitution:
2x + (6(1/2x - 6)) = 19
2x + 3x - 36 = 19
5x - 36 = 19
+ 36
5x = 55
÷ 5
x = 11

y = (1/2 × 11) - 6
y = 5.5 - 6
y = -0.5

Elimination:
y = 1/2x - 6
- y
0 = 1/2x - 6 - y
+ 6
1/2x - y = 6

3x - 6y = 36
2x + 6y = 19
(add)
5x = 55
÷ 5
x = 11

y = (1/2 × 11) - 6
y = 5.5 - 6
y = -0.5

I hope this helps! Let me know if you need me to explain why I did some things :)

You might be interested in

Berniece solved the following equation:

aniked [119]

Answer:

Step 4.

Step-by-step explanation:

To isolate the x variable, she subtracts 8 from both sides making it another subtraction property of equality justification.

5 0

3 years ago

I need help asap with this

tatyana61 [14]

Answer:

51°

Step-by-step explanation:

Given

<QPR = 39°

<PQR = 90° ( inscribed angle in semi circle)

Now

<QPR + <PQR + <PRQ = 180° { being sum of angles of triangle)

39° + 90° + <PRQ = 180°

<PRQ = 180° - 39° - 90°

<PRQ = 51°

Hope it will help :)

5 0

3 years ago

Solve the given inequality.<br> -x -8 > 2x + 9

k0ka [10]

Answer:

x < −17/3

Step-by-step explanation:

Put in comments if needed explanation

7 0

3 years ago

In how many ways can a designer chose from 3 summer dresses,2 purses, a hat, 3 scarfs, 2 belts if she chooses one of each?

butalik [34]

Answer:

I'm pretty sure it's 32

Step-by-step explanation:

hope this helpsb

4 0

3 years ago

Annual revenue for Corning Supplies grew by 5.5% in 2007; 1.1% in 2008; -3.5% in 2009; -1.1% in 2010; and 1.8% in 2011. What is

ANTONII [103]

Answer:

The mean growth annual rate over this period is 0.0036

Step-by-step explanation:

we know that

The mean growth annual rate is calculated as the sum of each year's growth rate divided by the number of years

$\frac{5.5\%+1.1\%-3.5\%-1.1\%+1.8\%}{5}=0.36\%$

Convert to decimal form

$0.36\%=0.36/100=0.0036$

therefore

The mean growth annual rate over this period is 0.0036

6 0

3 years ago