Answer:
6
Step-by-step explanation:
Let "a number" = x
44 = 8x - 4
Simplify. Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
First add 4 to both sides:
44 (+4) = 8x - 4 (+4)
44 + 4 = 8x
48 = 8x
Isolate the variable, x. Divide 8 from both sides:
(48)/8 = (8x)/8
x = 48/8
x = 6
6 is your answer.
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Answer:
y = 19, x = 11
Step-by-step explanation:
5y - 3 = 92
5y = 95
y = 19
5x - 1 = 54
5x = 55
x = 11
You know that 1 km=1000 m, then the length of the road km is metres.
A group of 8 people are picking up litter along the road and each person is assigned an equal section of the road. The whole road has length 800 m, then for each person will be assigned 800:8=100 m of the road.
If you want to know the length of each part in km, then 1 m=0.001 km and 100 m =1 m·100=0.001 km ·100=0.1 km.
Answer:
The sister is 20
Step-by-step explanation:
The sister is 4 years younger than the girl.
I have had this exact problem before, it is the last one.