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yKpoI14uk [10]
3 years ago
6

Is the sum of two negative numbers positive or negative

Mathematics
2 answers:
Irina-Kira [14]3 years ago
6 0
The sum of two negative numbers will always be negative.
a_sh-v [17]3 years ago
3 0
No, the sum of two negative numbers<span> can never be </span><span>positive</span>
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Doreen schmidt is a chemist. She needs to prepare 36 ounces of a 10% shydrochloric acid solution. Find the amount of 18% solutio
emmainna [20.7K]
Total = 36oz
Amount of 18% solution = x
Amount of 9% solution = 36 - x

Using the fact that (amount of solution) * (percent HCl) = amount HCl we can set up an expression for the amount HCl in a mixture of 18% and 9% solutions with a total volume of 36oz.

Amount of HCl = x*0.18 + (36 - x)*0.09

If we divide this by the amount of solution we get percent HCl, and we have a target of 10% HCl. Now we have an equation to solve,

[x*0.18 + (36 - x)*0.09]/36 = 0.1

x*0.09 + 3.24 = 3.6

.09x = 0.36
x = 4

Therefore,
4 ounces of 18% HCl solution and 32 ounces of 9% HCl solution

Check:
[(4*.18) + (.09*32)]/36 = 0.1?
0.1 = 0.1   Yes.

5 0
2 years ago
Tony Owens a special pet store that sells only snacks and elephants currently he has a total of 11 snacks and elephants in stock
bagirrra123 [75]

Answer:  There are 8 snake and 3 elephants.

Step-by-step explanation:

Let x= Number of snakes

y= Number of elephants

We know that , snake has no legs elephant has 4 legs.

Then, Total animals = x+y=11  (i)

Total legs = 4y = 12

⇒ y=3   .. (ii)[divide both sides by 4]

Substitute value of y from (ii) in (i) , we get

x+3=11\Rightarrow\ x=8

Hence, there are 8 snake and 3 elephants.

3 0
2 years ago
Janice listed the integers below on the chalkboard. Which of these integers has the greatest opposite? 1, –6, 11, –10, –8, 9, 5
muminat
-10 because its a negative and that's the opposite of the greatest itreger
8 0
3 years ago
1 over 2z = 3 over 4. Which of the following equals z in this equation? 3 over 8 2 over 3 1 over 1 over 2 2 over 2 over 3
Yanka [14]
The answer is

C. 1 1/2

100% Verified

Hope This Helps!
5 0
3 years ago
Read 2 more answers
Maple street is 3 times as long as pine street. how long is pine street?
bezimeni [28]

Divide maple street’s length by 3

5 0
2 years ago
Read 2 more answers
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