3 years ago

In the system -12c+3d=6 and -3c +6d=-9, which expression could you use for substitution

Mathematics

1 answer:

inessss [21]3 years ago

3 0

You can not use either of them because neither of them have a variable= to the eqaution
ex.) y= 3x+25

You might be interested in

An equation is shown.<br> f(w) = 2<br> +6<br> Find f(-16).

Nikitich [7]

Answer: f(-16) = -26

Step-by-step explanation: Let's substitute:

f(w) = 2w + 6 --> f(-16) = -32 + 6 =

f(-16) = -26
Hope this helps, please consider making me Brainliest.

7 0

2 years ago

josh's web site had 805,289 visitors. Diego's site had 784,976 visitors. How many more visitors did josh's sit have than Diego's

Trava [24]

Josh's sit had 20,313 more visitors than Diego's.

8 0

3 years ago

The stem and leaf plot shows high temperatures

Veronika [31]

Answer: 54 Degrees, 2days

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the range of the data?

Ghella [55]

O
..............…....

5 0

3 years ago

What is the solution to the equation fraction 4 over 5 n minus fraction 1 over 5 equals fraction 2 over 5 n?

photoshop1234 [79]

Answer:

value of n = 2

Step-by-step explanation:

$\frac{4}{5n}-\frac{1}{5}=\frac{2}{5n}$

We need to solve the above equation.

Find Least Common multiplier from 5n, 5 = 5n

Multiply both sides of the equation by 5n

$\frac{4}{5n}*5n-\frac{1}{5}*5n=\frac{2}{5n}*5n\\Solving:\\4 -n = 2\\$

Now finding the value of n.

Adding -4 on both sides

$4 -n-4 = 2-4\\-n= -2$

Multiplying both sides by -1

n = 2

The value of n is 2.

We can verify by putting value of n in the given question.

$\frac{4}{5n}-\frac{1}{5}=\frac{2}{5n}\\n=2\\\frac{4}{5*2}-\frac{1}{5}=\frac{2}{5*2}\\\frac{4}{10}-\frac{1}{5}=\frac{2}{10}\\\frac{2}{5}-\frac{1}{5}=\frac{1}{5}\\\frac{2-1}{5}=\frac{1}{5}\\\frac{1}{5}=\frac{1}{5}$

So, value of n = 2

5 0

3 years ago