Answer:
Step-by-step explanation:
Solve the following inequality:
-Take and subtract it from :
-Subtract on both sides:
-When you are dividing an integer by a negative integer, then the inequality sign changes. So, Take and divide it on both sides:
Therefore, the answer is .
3 x + 25 = 3.5 x
3.5 x - 3 x = 25
0.5 x = 25
x = 25 : 0.5
x = 50°
m ∠ DBC = 3.5 · 50°
Answer:
<span>m ∠ DBC = 17</span>5°
Is this a school question or your question, if school then is it a multiple choice?
4y=13-1
4y=12
y=12/4
y=3 That shoud be your answer
Answer:
1m 54cm
Step-by-step explanation:
10 students at 1m 40cm
15 students at 1m 58cm
13 students at 1m 60cm
Keep in mind that ratio between cm to m is 1cm/0.01m.
So let find the average by converting cm to m first for the 38 students.
10 students: 1m + (40cm)(0.01m/1cm) => 1.4 m
15 students: 1m + 58cm(0.01m/1cm) => 1.58 m
13 students: 1m 60cm(0.01m/1cm) => 1.60 m
so the average is weighted:
(10*1.4 +15*1.58 + 13(1.6))/38
Therefore the average model height is 1.54 m or 1m 54cm