Answer:
x= -11/10
Step-by-step explanation:
-6.75 + 21/4 - 3.25 - -11/10= -3.65
answer= 15
the sum of 14 =1+4= 5
and twice of this is= 5x2= 10
so total saving is= 5+10= 15
Assuming 100 kw bulb
<span>We'll start by figuring out how much energy in
kilowatt-hours the light bulb uses per year. We multiply how much power it uses
in kilowatts, by the number of hours in a year. That gives 0.1 kW x 8,760 hours
or </span>876 kWh x 9 bulbs = 7884 kWh
The electricity produced by 4 tons x 2460
kWh/ton = 9840 kwh
<span>Since the produced electricity is bigger so it
is enough</span>
To find out the box number the boxes, extract the same number of balls as the number of the box, calculate the total weight.
<h3>What are the steps to find the box with the 29 kg balls?</h3>
Considering you can only weigh the balls extracted once and you need to find the box with balls that are 1-kilo lighter; here are the steps you can follow:
- Number the boxes from 1 to 19.
- Extract the same number of balls as the number given to the box. For example, from box 9 extract 9 balls.
- Weight all the balls together.
- Find out the box with the 29 kg balls. Here is an example:
The total weight using this method would be 6,300 kg which is the result of adding 30 kg (first box) + 60 kg (second box)... However, since there is a box with lighter balls the total weight will be less.
Let's imagine the weight is 6,290, this means there are 10 fewer kilos and therefore the box with the lighter balls is box 10 since this is the box number from which 10 balls were extracted.
Learn more about weight in: brainly.com/question/10069252
Answer:
Step-by-step explanation: