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Elden [556K]
2 years ago
11

A square of steel with volume 10cm3 and mass production of 75 g is cut precisely in half. The density of the two smaller pieces

is now...
Mathematics
1 answer:
shusha [124]2 years ago
5 0
Same as original, density = mass / volume, cutting the block in two pieces or any number of pieces doesn't change the density as ratio m/v remains constant.

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Calculate simple interest :
Elodia [21]

Answer:

the simple interest in both cases is 200 and 756 respectively

Step-by-step explanation:

The computation of the simple interest is shown below:

As we know that

Simple interest = P × r% × t

So

a. Simple interest is

= 2,500 × 8% × 1

= 200

b. The simple interest is

= 4,200 × 6% × 3

= 756

Hence, the simple interest in both cases is 200 and 756 respectively

5 0
3 years ago
[1 -4 3 5]+[-2 6 -2 4]
Rasek [7]

Step-by-step explanation:

[1-2 -4+6 3-2 5+4]

[-1 2 1 9]

4 0
2 years ago
How many committes of 3 people can be formed from 7 people order does not matter?
Phoenix [80]
You can form 2 and then you have the odd one out.
5 0
3 years ago
Annie needs $30 to buy a coat she has saved $12 and plans to work as a baby siter to earn $6 per hour which inequality shows the
tekilochka [14]

Answer:

The answer would be B. 12 + 6n is greater than or equal to 30, so n is less than or equal to 3.

explanation:

I'm bad with explaining things, but I'll try my best to explain why this is the right answer.

12 + 6n ≥ 30, so n ≤ 3

let's start with the 12 at the beginning of the inequality, Annie already has $12, so the 12 in the inequality shows the amount of money she already has being added to the $6 per hour of babysitting she needs to do (n).

Now for the + 6n, the plus is there to show that the $12 Annie already has is being added to the 6n. The 6n then represents the $6 Annie makes each hour and the n represents how many hours she needs to babysit in order to get $30. The 6 is being multiplied by the amount of hours she needs to babysit to show how much money Annie would make. Then you add on the $12 she already has.

Annie then needs at least $30, but if she makes more than $30 then she will simply have more money than needed, therefore you use the greater than or equal to sign to show that she can have more money than just $30 after working.

I hope this helps, and sorry if my explanation is hard to understand lol.

6 0
2 years ago
Cathy drank 600 mL of water at school and another 400 mL at home. How many liters of water did Cathy drink?
liraira [26]
Cathy drank 1,000 ml of water which means she drank 1 liter.
8 0
2 years ago
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