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Sergeeva-Olga [200]
3 years ago
13

First 1 i got the answer but i want the 2

Mathematics
1 answer:
Musya8 [376]3 years ago
3 0
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What is 7/200 as a decimal
Hitman42 [59]
(7 / 2 ) / 100 

3.5 / 100 

0.035 

So your answer is 0.035
8 0
3 years ago
A 35% sodium hydroxide solution is to be mixed with a 60% sodium hydroxide solution to obtain 20 liters of 40% sodium hydroxide
nydimaria [60]
0.35x + 0.60y = 0.40(x + y)   where x = vol. of 35% and y = vol. of 60%

x + y = 20

solve this system of equations

x  +  y =  20
-0.05x +0.20y = 0

this gives x = 16 and y = 4

so you need 16 L of 35% and 4 L of 60% solution.


3 0
3 years ago
Convert 450 MPa to psi. Note: 1 MPa = 145 psi.
Nastasia [14]

Answer:

65250 psi

450*145=65250

3 0
3 years ago
The product of two numbers is -30, but their sum is -13. What are these two numbers?
Nata [24]
<h3>Answer:  -15 and 2</h3>

You find this through trial and error.

A much more efficient way is to solve x^2-13x-30 = 0 using the quadratic formula. You'll find the two solutions to be x = 15 and x = -2

Going from those solutions, we get x-15 = 0 and x+2 = 0 which then turn into (x-15)(x+2) = 0 through the zero product property.

3 0
3 years ago
Read 2 more answers
Standard automobile license plates in a country display 2 digits, followed by 2 letters, followed by 3 digits. How many differen
fomenos

Answer:

There are 1,892,800,000 different standard plates that are possible in this system

Step-by-step explanation:

The plates follow the following format:

D - D - L - L - L - D - D - D

For each digit there are 10 possible outcomes, and for each letter there are 26 possible outcomes.

So, there are

10*10*26*26*28*10*10*10 = 1,892,800,000

different standard plates that are possible in this system

3 0
3 years ago
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