All categories

2 years ago

What would you do to solve the system?

1 answer:

6 0

Answer:

Explanation:

12x = 48 - 8y
10x + 8y = 38
———————
12x + 8y = 48
10x + 8y = 38
———————
12x + 8y = 48
-1(10x + 8y = 38)
————————
12x + 8y = 48
-10x - 8y = -38
————————
2x = 10
x = 10/2 = 5

If x = 5 then:
10x + 8y = 38
10(5) + 8y = 38
50 + 8y = 38
8y = 38 - 50
8y = -12
y = -12/8
y = -3/2

Therefore, x = 5 and y = -3/2

You might be interested in

Find the length of UX

Dahasolnce [82]

Answer:

$\dfrac{8}{\sin(6^\circ)} \approx 76.53$

Step-by-step explanation:

$UX \sin(6^\circ) = 8 \Rightarrow \boxed{UX = \dfrac{8}{\sin(6^\circ)} \approx 76.53}$

4 0

1 year ago

What is x=5 and how do you graph it

Stolb23 [73]

Answer:

whatever y is, x will equal 5.

Step-by-step explanation:

draw a vertical line at 5 on the x axis

3 0

2 years ago

What i the product ? (2x-1)(x+4)

kogti [31]

Answer:

$2x^2+7x-4$

3 0

2 years ago

Read 2 more answers

What can you times by 9 to 1296 <br> What can you multiply by 9 to get 1296

ozzi

Answer:

144, would be your answer

Step-by-step explanation: Multiply 144 by 9 and you get 1296.

7 0

3 years ago

The population of California is approximately 38,040,000. The population of Texas is about 2.606 × 107. What is the approximate

liubo4ka [24]

Answer:

The total population of these two states is:

$3.804\times \:\:10^7+2.606\times \:\:10^7\:=10^7\times \:\:6.41$

Therefore, option C is correct.

Step-by-step explanation:

The population of California is approximately 38,040,000.

The population of Texas is about 2.606 × 10⁷.

Writing the population of California i.e.38,040,000 in scientific notation by moving the decimal point 7 places to the left and dropping the 0's on the right side as they're after the decimal point now.

i.e.

38,040,000 = 3.804 x 10⁷

So adding 3.804 x 10⁷ and 2.606 × 10⁷

i.e.

$3.804\times \:10^7+2.606\times \:10^7$

$\mathrm{Add\:similar\:elements:}\:10^7\times \:3.804+10^7\times \:2.606=10^7\times \:6.41$

Thus, the total population of these two states is:

$3.804\times \:\:10^7+2.606\times \:\:10^7\:=10^7\times \:\:6.41$

Therefore, option C is correct.

4 0

3 years ago