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3 years ago

What is the solution to the system of equations below? y = -2x - 6 and 2y = -4x - 12

Mathematics

1 answer:

katen-ka-za [31]3 years ago

6 0

Answer: Infinitely Many Solutions

Step-by-step explanation:

Substitute y into the second equation:

2(-2x-6)=-4x-12

Then you get -4x-12=-4x=-12. Since this is 0=0 it would make it infinitely many solutions.

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What is the area of ΔABC to the nearest tenth of a square inch?<br><br> PLEASE SHOW WORK!

photoshop1234 [79]

Answer:

1440.1 in^2

Step-by-step explanation:

I drew a picture with work; hopefully this is the equation you're using in the lesson.

6 0

2 years ago

Find the Sum of two consecutive odd numbers plus eighteen is 170

puteri [66]

Answer:

75, 77

Step-by-step explanation:

Let the first odd number = 2x -1

Let the second odd number = 2x + 1

2x - 1 + 2x + 1 + 18 = 170 Combine like terms on the left.

4x + 18 = 170 Subtract 18 from both sides.

4x = 170 - 18 Combine like terms on the right

4x = 152 Divide by 4

4x/4 = 152/4

x = 38

2 * 38 - 1 = 75

2 * 38 + 1 = 77

4 0

3 years ago

Question 8

Ede4ka [16]

Answer:

$136.50

Step-by-step explanation:

Time and a half = 13.00 + (13 × 1/2)

Time and a half = 13.00 + 6.50

Time and a half = $19.50

If he works 7 hours of overtime, and overtime means getting paid time and a half, we would multiply 7 hours by $19.50 to find the total amount he was paid

7 × 19.50 = 136.50

In overtime, he was paid $136.50

5 0

3 years ago

A 12-ounce bottle of shampoo lasts Enrique 16 weeks. How long would you expect an 18-ounce bottle of the same brand to last him?

strojnjashka [21]

12 oz/16 weeks divided = uses a ounce every 1.33 weeks

1.33 weeks X 18 ounces = 23.94 estimate 24 weeks

3 0

3 years ago

Draw a division model to show how many 1/4 are in 3 1/2

Rina8888 [55]

First, you would need to create an equation for this problem.
3 $\frac{1}{2}$ ÷ $\frac{1}{4}$

Next, you would flip the second fraction and change it to multiplication.
3 $\frac{1}{2}$ × $\frac{4}{1}$

Now, you would change the first fraction into an improper fraction and cross simplify the equation.
$\frac{7}{2}$ × $\frac{4}{1}$
$\frac{7}{1}$ × $\frac{2}{1}$

Finally, you would solve it.
$\frac{7}{1}$ × $\frac{2}{1}$ = $\frac{14}{1}$ = 14

3 $\frac{1}{2}$ ÷ $\frac{1}{4}$ = 14

I hope this helps!

4 0

3 years ago