All categories

3 years ago

PLEASE HELP BUT DON'T ANSWER UNLESS YOU ACTUALLY CAN HELP! 15 PTS!

Mathematics

1 answer:

juin [17]3 years ago

4 0

The key to solving this problem lies in representing the unknowns properly.

Let the first angle be a. Then the second angle, b, is a+20. The third angle is (a+20)+8. Now all of the measurements of angle are in terms of a. Fact: the sum of all the angles of a triangle is 180 degrees.

Thus, a + a+20 + a+20+8 = 180, or:

3a + 48 = 180.

Solve for a by subtracting 48 from both sides: 3a = 132, or a = 44.

The first angle is a = 44 degrees.

The second angle is a+20 degrees, or 64 degrees.

The third angle is a+20+8 degrees, or 72 degrees.

We must check to ensure that these 3 angles do add up to 180 degrees:

44+64+72 = 180

You might be interested in

a motorcycle dealer paid a certain price for a motorcycle and marked it up by 1/5 of the price he paid. Later, he sold it for $1

katovenus [111]

Okay so $14,000 is the equivalent of 6/5ths
so divide $14,000 by 6= $2333.3r

you need 5/5
so $2333.3r x 5 = $11666.67
this is the original price

5 0

3 years ago

Graph the following inequality. Then click to show the correct graph. 3x - 2y ≤ 6

max2010maxim [7]

Answer:

We want to graph the inequality:

3x - 2y ≤ 6

The first step is to write this as a linear equation, to do it, we can isolate y in one side of the inequality.

3x ≤ 6 + 2y

3x - 6 ≤ 2y

(3/2)x - 6/2 ≤ y

(3/2)x - 3 ≤ y

or:

y ≥ (3/2)x - 3

Because we have the symbol ≥

The points on the line are solutions, then the first part is to graph the line:

y = (3/2)*x - 3

Next, we have:

y equal to or larger than (3/2)*x - 3

Then we need to shade all the region above that line.

The graph can be seen below.

3 0

3 years ago

Pablo mixed 2 1 /2 quarts of fruit juice with 1 gallon of seltzer. If each serving is 8 fluid ounces, how many servings did Pabl

Vinvika [58]

Answer: B

Step-by-step explanation:

1. Convert gallons to quarts (1 gallon = 4 quarts)

2. Add 4 quarts to 2 1/2 quarts (6 1/2 quarts)

3. Multiply by 4 to find the amount of cups. (1 cup = 8 fl oz.)

HOPE IT HELPS BYEEEE

5 0

3 years ago

What does 3x/4 equal?

tester [92]

Answer:

$\frac{3x}{4}$

Step-by-step explanation:

Nothing can be done with the equation because there is no quotient.

If there was, would be able to solve for x.

6 0

3 years ago

Need help with 9 and 12(theirs a picture)

Doss [256]

Number 6 is incorrect. Remember when you see -(-1) that is addition because you are subtracting a negative from a negative so you take the negative sign away and you have a positive. The correct answer to 6 is -75. For number 9 the first thing that you are gonna do is distribute that negative sign to the -12 in parentheses. This will make it a positive 12 which leaves you with

-8+12-31=-27

Next for number 12 you will distribute the - sign onto the -9 in parentheses and the -16 in parentheses. This will leave you with -16+9+16=9

Hope that this helped!

8 0

4 years ago