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Talja [164]
3 years ago
15

Four milliliters of ink A is added to 10 milliliters of ink B, forming a mixture of inks. Ink A contains 10% blue pigment. Ink B

contains an unknown percentage of blue pigment. The mixture of the two inks contains 35% blue pigment. What percentage of blue pigment is in ink B?
45%
49%
60%
75%
Mathematics
1 answer:
tester [92]3 years ago
7 0
I think the answer is 45%.
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If sin(x) = cos(y) for acute angles x and y, how are the angles related?
Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5

#We can reverse as:

Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603

Hence, two angles are said to be complimentary if they sum up to 90°.

6 0
3 years ago
What is the price of you pizza with all the toppings?
GarryVolchara [31]

<u><em>Each answer is under each Part</em></u>

1. What is the price of you pizza with all the toppings?                                

<em><u>$16</u></em>

The pizza costs 12 dollars, and each topping costs 1.75 dollars, there are 4 toppings, so it's 12 + 1.75*4 = 12 + 4 = 16 dollars.

2. How much will you pay in tax?                                                                

<em><u>$0.80</u></em>

It costs 16 dollars and tax is 5%, so 5% of 16. 16*5% = 16*0.05 = 0.8, so 0.8 dollars, or $0.80

3. What is the total cost including tax?                                                    

<u><em>$16.80</em></u>

Add the cost of the pizza with the tax, 16 + 0.8 = 16.8, $16.80

4. How much will each of you need to pay to cover the total price?

<u><em>$4.20</em></u>

There are 4 people total, You and 3 friends, so divide the total cost by 4, 16.80/4 = 4.2, so $4.20

3 0
3 years ago
Read 2 more answers
Simplify the expression and explain each step.
Snowcat [4.5K]

Answer:

is the 3x a expression ill comment the awnser if is

Step-by-step explanation:

5 0
3 years ago
What is the value of n in the equation 3n + 2(n + 2) = 9n + 12?<br><br> −4<br> −2<br> 2<br> 4
iren [92.7K]
<span>n = -2 is the correct answer</span>
6 0
4 years ago
Rewrite the equation x3-1/2x+2=0 such that no side is 0
Karolina [17]

x3 - 1/2x + 2 = 0

if you mean x³, and not x3, then heres the answer to the problem: (if it is something else please let me know)

x³ - 1/2x + 2 = 0

              -2     -2

x³ - 1/2x = -2

^no side is 0 :D

7 0
3 years ago
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