7.5x + 40 = 70
Note the equal sign. What you do to one side, you do to the other. Isolate the x. Do the opposite of PEMDAS.
First subtract 40 from both sides
7.5x + 40 (-40) = 70 (-40)
7.5x = 70 - 40
7.5x = 30
Next, divide 7.5 from both sides
7.5x/7.5 = 30/7.5
x = 30/7.5
x = 4
4 friends are going to the aquarium together
hope this helps
Answer:
See explanation
Step-by-step explanation:
1. BK is an angle B bisector, then
(definition of angle bisector)
2. BM = MK, then
triangle BMK is isosceles triangle with base BK.
3. Angles adjacent to the base of isosceles triangle are congruent, then
Note that angle MBK is the same as angle CBK.
4. By substitution property,
5. By alternate interior angles theorem,
if , then
Answer:
30 cents
Step-by-step explanation:
Answer:a)0.001
b) males=1.
Females = 1
c) 0.9
d) 4×10^-5
e)0.045
Step-by-step explanation:a) crude death= Number of death/Number of individuals = 1000/100000= 0.001
b)sex specific death rate= numbered deaths of males/ number of deaths of males= 600/600= 1
c)case specific = 45/50=0.9
d)cause specific= Number of people dying from lung cancer/number of people with disease=45/100000=4×10^-5
e) pmr= number of deaths from specific disease÷total number of death=45/1000=0.045