Answer: 3
Step-by-step explanation:
1.5+1.5=3
Answer:
-7 = h
Step-by-step explanation:
15.3 + 1h = 1.3 - 1h
<u> +1h +1h</u>
15.3 + 2h = 1.3
Remember what you do to one side you MUST do to the other.
15.3 + 2h = 1.3
<u>-15.3 -15.3</u>
2h = -14
Now to isolate the variable you divide both sides by 2 to get, h = -7
Hope that helps and have a great day!
Let's use a for number of days when he shot 50 shots and b for number of days when he shot 100 shots.
We have:
a + b = 20
We also know that he shot total of 1250 shots:
50a + 100 b = 1250
We have two equations. We can solve them for a and b. Let's rearange first equation for a:
a= 20 - b
We insert this into second equation:
50 * (20 - b ) + 100b = 1250
1000 - 50b + 100b = 1250
50b = 250
b = 5
a = 20 - 5
a = 15
Mark shot 100 shots on 5 days.
70 liters ÷ 100 samples= 0.7 or 7/10 liter per sample
Hope this helps! :)
