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siniylev [52]
2 years ago
11

A cup is 16fl oz, you want to fill it to 12fl oz, which is 3/4 of the cup. What is the other percentage of water if you already

filled 12.5% of 12fl oz?
Mathematics
2 answers:
pantera1 [17]2 years ago
6 0
Whoever worded this question made it confusing, 87.5%?
oksian1 [2.3K]2 years ago
5 0
It definitely 87.5% guy, good luck
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KatRina [158]
Your answer is 40mm

3+12+12+13
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3 0
3 years ago
Read 2 more answers
By law, a wheelchair service ramp may be inclined no more than . If the base of a ramp begins 15 feet from the base of a public
choli [55]

Answer:

The equation that can be used to determine the maximum height is given as h = 15tan4.76°

Step-by-step explanation:

The question given is lacking an information. Here is the correct question.

"By law, a wheelchair service ramp may be inclined no more than 4.76 degrees. If the base of the ramp begins 15 feet from the base of a public building, which equation could be used to determine the maximum height, h, of the ramp where it reaches the building's entrance"

The whole set up will give us a right angled triangle with the base of the building serving as the adjacent side of the triangle and the height h serving as the opposite side since it is facing the angle 4.76°

The side of the wheelchair service ramp is the hypotenuse.

Given theta = 4.76°

And the base of the building = adjacent = 15feet

We can get the height of the building using the trigonometry identity SOH CAH TOA.

Using TOA

Tan(theta) = opposite/Adjacent

Tan 4.76° = h/15

h = 15tan4.76°

The equation that can be used to determine the maximum height is given as h = 15tan4.76°

4 0
3 years ago
Factors of -96 that add up to -10
hjlf
Positive six and negative sixteen
5 0
3 years ago
HW Set 1/ Directions: Solve each equ<br> 1. ) 4x + 27 = 3x
gavmur [86]

Answer:

x = -27

Step-by-step explanation:

4x+27=3x

Subtract 3x from both sides of the equation.

==> 4x + 27 -3x = 3x - 3x

==> 4x - 3x + 27 = 0

==> 1x + 27 = 0

Subtract 27 from both sides,

==> x + 27 - 27 = 0 - 27

==> x = -27

8 0
3 years ago
Suppose a student started with 139.0 mg of trans-cinnamic acid, 463 mg of pyridinium tribromide, and 2.45 mL of glacial acetic a
Sliva [168]

Answer:

0.2889 g  brominated product

64.6 %

Step-by-step explanation:

This is a bromination chemical reaction of an alkene  and we are asked to calculate the theoretical and percent yield. Thus to solve it we have to perform a calculation based on the balanced chemical reaction.

The pyridinium tribromide is used as a generator of molecular bromine in situ, and bromine will add to the double bond in trans-cinnamic acid so we know the reaction occur in a one to one mole fashion.

trans-cinnamic acid + pyridinium  tribromide ⇒ 2,3-dibromo-3-                          

                                                                             phenylpropanoic acid

Molar weight  trans-cinnamic acid  =  148.16 g/mol

mass trans-cinnamic acid  = 139.0 mg x  1g/1000 mg = 0.139 g

# mol trans-cinnamic acid =  0.139 g / 148 g/mol = 9.38 x 10⁻⁴ mol

Since our reaction is 1 mol trans-cinnamic acid  produces 1 mol 2,3-dibromo-3-phenylpropanoic acid, it follows that the theoretical yield is:

1 mol 2,3-dibromo-3-phenylpropanoic acid /  trans-cinnamic acid x 9.38 x 10⁻⁴ mol trans-cinnamic acid  

=  9.38 x 10⁻⁴ mol  2,3-dibromo-3-phenylpropanoic acid

In grams the the theoretical yield is:

molar mass  2,3-dibromo-3-phenylpropanoic acid = 307.97 g/mol

The theoretical mass  2,3-dibromo-3-phenylpropanoic acid:

=   9.38 x 10⁻⁴ mol  2,3-dibromo-3-phenylpropanoic acid x 307.97 g/mol

=   0.2889 g

% yield = mass experimental/mass theoretical

= 0.1866 g /  0.2889 g x 100 = 64.6 %

4 0
2 years ago
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