All categories

4 years ago

What is the unit of time most often used by scientists?

Mathematics

2 answers:

Natasha2012 [34]4 years ago

7 0

Seconds is usually the unit used

laiz [17]4 years ago

4 0

The answer is seconds

You might be interested in

A dealer purchased 250 bulbs for Rs10 each. However, 12 bulbs got fused which he had to throw away. He sold the remaining bulbs

jasenka [17]

Answer:

CP of 1bulb =Rs10

CP of 250bulbs=Rs2500

Number of defective bulbs 12

remaining bulbs =250−12=238

SP of 1bulb =Rs12

SP of 238bulbs=Rs2856

profit=Total SP-CP=2856−2500=Rs356

profit%=[

loss

×100]=

2500

356

×100=14.24%

Step-by-step explanation:

6 0

3 years ago

Justin has $7.50 more then Eva, and Emma has $12 less than Justin. Together, they have a total of $63.00. How much money does ea

PilotLPTM [1.2K]

To make it easier, lets say Justin = J, Eva = E, and Emma = M. Then, J = E + 7.50 M = J -12 J + E + M = 63 You can substitute for M in the third equation using the second equation, and you get: J + E + J - 12 = 63 Clean it up a little bit and you get: 2J + E = 75 You know J = E + 7.50, so substitute that for J and you get: 2(E + 7.50) + E = 75 2E + 15 + E = 75 3E + 15 = 75 3E = 60 E = 20 ; meaning that Eva has $20. Justin has $7.50 more than Eva, so he has $27.50. Emma has $12 less than Justin, so Emma has $15.50. Double check your answer by making sure they all add up to 63, which they do.

5 0

3 years ago

Sale amount 1250.00 and 6.5% sales tax

natima [27]

1250 × 6.5% is 81.25 add that to 1250 and get 1331.25.

8 0

3 years ago

What's is 8(x-3)+8=5x-22

atroni [7]

8 (x - 3) + 8 = 5x - 22

First, expand. / Your problem should look like: 8x - 24 + 8 = 5x - 22
Second, simplify 8x - 24 + 8 to 8x - 16. / Your problem should look like: 8x - 16 = 5x - 22
Third, subtract 5x from both sides. / Your problem should look like: 8x - 16 - 5x = -22
Fourth, simplify 8x - 16 - 5x to 3x - 16. / Your problem should look like: 3x - 16 = -22
Fifth, add 16 to both sides. / Your problem should look like: 3x = -22 + 16
Sixth, simplify -22 + 16 to -6. / Your problem should look like: 3x = -6
Seventh, divide both sides by 3. / Your problem should look like: x = $- \frac{6}{3}$
Eighth, simplify $\frac{6}{3}$ to 2. / Your problem should look like: x = -2

Answer: x = -2

5 0

4 years ago

PLEASE HELP!!!

Step2247 [10]

Answer:

$\left[\begin{array}{ccc}-8&0\\12&-23\\4&7\end{array}\right]$ negative represents a decrease

Step-by-step explanation:

looking at the same place on both matrix, find the difference between the numbers

97 to 89- goes down 8-- so -8

86 to 86 is no change 0

185 to 197 is an increase of 12

210 to 187 is a decrease of 23

39 to 43 is an increase of 4

67 to 73 is in increase of 7

the negative represents a decrease

3 0

3 years ago