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RideAnS [48]
3 years ago
6

What is the supplement angle of 100?​

Mathematics
1 answer:
aleksley [76]3 years ago
5 0

Answer:

An angle measuring 100 degrees would be supplementary to any angle measuring 80 degrees, but it cannot be called supplementary by itself. "Complementary" and "supplementary" are terms that describe the relationship between two angles. They are comparative words like "larger."

Step-by-step explanation:

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What is −4(−5x+2)−3x−5= -30
alexandr1967 [171]

Answer:

x = -1

Step-by-step explanation:

Step 1: Write equation

-4(-5x + 2) - 3x - 5 = -30

Step 2: Solve for <em>x</em>

<u>Distribute -4:</u> 20x - 8 - 3x - 5 = -30

<u>Combine like terms:</u> 17x - 13 = -30

<u>Add 13 on both sides:</u> 17x = -17

<u>Divide both sides by 17:</u> x = -1

3 0
3 years ago
Read 2 more answers
5x+4y=-14 <br>3x+6y=6<br> solve the system below by the elimation​
lana66690 [7]

Answer:

y = 4

x = -6

Step-by-step explanation:

multiply first equation by 3

3×(5x+4y)= -14 ➡ 15x + 12y = -42

multiply second equation by -5

-5×(3x+6y)= 6➡ -15x -30y = -30

now add both equations up

15x +12y -15x -30y = -42 -30 (15x will eliminate -15x)

-18y = -72

y = 4 use this to find value of x

3x + 6×4 = 6 ➡ ex = -18 ➡ x = -6

8 0
3 years ago
A test is worth a total of 150 points and contains 70 questions. Some of the questions are worth 2 points and some are worth
FrozenT [24]

Answer:

65 two-point questions, and 5 four-point questions.

Emma answered 2 four-point questions.

Step-by-step explanation:

1. Assigning variables and writing equations

We will set the number of 2 point questions as "x" and number of 4 point questions as "y"

We know that:

x+y=70 (number of 2 point questions+number of 4 point questions=total number of questions)

2x+4y=150 (number of points that a two point question is worth*number of two point questions+number of points that a four point question is worth*number of four point questions=total points on test)

2. Combining equations

x+y=70, 2x+4y=150

We will solve one of these equations.

x+y=70

x=70-y

Next, we will substitute the other equation with this solution.

2*(70-y)+4y=150

140-2y+4y=150

2y=10

y=5

Use this solution to find x.

x+y=70

x+5=70

x=65

<em>We found that there are 65 two-point questions, and 5 four-point questions. </em>

3. Finding Emma's test results

In this case, we know how many two-point questions she answered. So, we will only be using one variable in this equation, which is y.

46*2+4y=100

92+4y=100

4y=8

y=2

<em>So, she answered 2 questions correctly. </em>

4 0
3 years ago
How do you solve this?
Fantom [35]

Am sorry but it think you have forgotten to write the equation or to add an image

6 0
3 years ago
Read 2 more answers
Two similar cylinders have surface areas of 24 cm2 and 54 cm2. The volume of the smaller cylinder is 16 cm2.
lana66690 [7]

Answer:

54 cm2

Step-by-step explanation:

Was right on edge

8 0
3 years ago
Read 2 more answers
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