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Hatshy [7]
2 years ago
6

Terry's Excavation rents bulldozers.

Mathematics
1 answer:
Galina-37 [17]2 years ago
6 0
The answer would be A.

$198.45 x 5 days = $992.25

$992.25 + $65 delivery charge = $1057.25
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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
3 years ago
Help with this question, ASAP!!
andreev551 [17]

Answer: Your answer would be 6

Step-by-step explanation:

6 0
3 years ago
1.5 cups per day how many gallons per weeek? (1gallon =16cup)
anyanavicka [17]
So as you know, one gallon has 16 cups, and there's 7 days in a week. So, if you multiple 1.5 by 7 you would get 10.5 cups per week, then divide that by 16 and get .65625 gallons per week.
8 0
3 years ago
Please answer within the next 7 min, giving 38 points of a ligament answer!
frosja888 [35]
The answer is choice C
6 0
3 years ago
SUPER DUPER EASY but need help!
Mandarinka [93]

Answer:

D.) 1 + 1 + 5/8 + 2/8

Step-by-step explanation:

1 5/8 + 1 1/4

*set aside ones for a sec*

1/4 x 2/2 = 2/8

5/8 + 2/8

*get the ones back in*

1 + 1 + 5/8 + 2/8

5 0
3 years ago
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