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QveST [7]
3 years ago
8

On a large baking tray, 40 cookies can be baked together. To bake 40 cookies it takes 14 minutes, for baking 80 cookies it takes

28 minutes, for baking 100 cookies it takes 42 minutes. How much time will it take to bake 140 cookies?
A-49 B-56 C-57 D48
Mathematics
1 answer:
zalisa [80]3 years ago
6 0
The answer is B (56) because it states that it takes 14 minutes to bake 40 cookies, and you already have 100 cookies so you would just add the time it took to bake 40 cookies which would be 42+14=56
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How many milliequivalents of sodium chloride are contained with 3 L of normal saline?
AVprozaik [17]

Answer:

466mEq

Step-by-step explanation:

First, we need to know the concentration of NaCl in a normal saline solution, this is by definition 0.9%, meaning we have 0.9g of NaCl per 100ml of solution, we want to know how much NaCl we have in 3L (3000ml):

3000ml*\frac{0.9g}{100ml}=27g=27000mg

So, we have 27000mg in 3L of normal saline solution.

Now, acording to our milliequivalent (mEq) equation (mEq=\frac{mg}{pE}) where pE is de molecular mass of NaCl divided by their charges, in this case 1:

pE= \frac{23+35}{1}=\frac{58}{1} = 58

Finally we substitute in the mEq formula:

mEq=\frac{mg}{pE}=\frac{27000}{58}=466mEq

I hope you find this information useful! Good luck!

4 0
3 years ago
What is the answer to 1.75g x 1000mg/1g?
Lerok [7]
1750mg in 1.75g just move the decimal place over three places. so its 1750mg
8 0
3 years ago
The table below represents a proportional relationship. The unit rate of the relationship is
jek_recluse [69]

Answer:

the unit rate is 3

7 0
3 years ago
Quick Please :) Exponents and powers
MrRissso [65]

Step-by-step explanation:

(  {4}^{ - 3} ) ^{ - 3}  =  {4}^{9}

( { - 4}^{9} )  ^{2} = ( - 4) {}^{18}

( {4}^{6} ) ^{ - 3}  =      \frac{1}{{4}^{18}}

(  { - 4}^{9} ) {}^{2}  = ( { - 4})^{18}

({4}^{0} ) =  {4}^{0}

Hope this is correct and helpful

HAVE A GOOD DAY!

6 0
3 years ago
Read 2 more answers
Can someone please help me find the surface area of C before 8:30?!
avanturin [10]
There are some area calculators on google if you need but I will try work it out..... if I don’t know I won’t send another answer
4 0
3 years ago
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