Answer:
30 yellow straws and 45 red straws
30:45
Step-by-step explanation:
Make a ratio:
2:3, 2 being the yellow straw and 3 being the red straws
They are now asking how many red if there are 30 yellow straws
2:3 = 30:x
You could either cross multiply or simply do 30 ÷ 2 = 15 then 15 × 3 = 45. Your answer is 45
<u>Cross </u><u>multiplying</u>
2x = 90
90 ÷ 2 = 45
Answer: The answer is nine, because
The median is the number in the middle setting the data up from least to greatest.
2, 3, 4, 4, 9, 10, 11, 11, 12, 15.
Median = 9.5
The mean is all the numbers added up and divided by how many there are.
2+ 3 + 4 + 4 + 9 + 10 + 11 + 11 + 12 + 15/10
Mean = 8.1
I'm not sure about the other two.
4x+2 = 150 (since they are across they are equal to each other)
4x = 148
x = 37
Your other answer is supplementary angles. They both add up to 180 degrees
Hope this helped!!
Answer:
2x + 30° = 40°
4x + 30° = 50°
Step-by-step explanation:
2x + 30° and 4x + 30° are complementary angles.
Complementary angles sum up to give 90°.
Therefore,
2x + 30° + 4x + 30° = 90°
Add like terms
6x + 60 = 90
6x = 90 - 60
6x = 30
6x/6 = 30/6
x = 5
✔️2x + 30°
Plug in the value of x
2(5) + 30
10 + 30
= 40°
✔️4x + 30°
4(5) + 30°
20 + 30
= 50°