Jason has 4 gallons of hand sanitizer that contains 25% alcohol. He wants to make a hand sanitizer that contains 50% alcohol. How many gallons of pure alcohol should he add?

Answer:

38 quarts

Step-by-step explanation:

Answer:

[tex] \tan(C) = \frac {55}{48}[/tex]

Step-by-step explanation:

By Pythagoras Theorem:

[tex]BC = \sqrt{ {73}^{2} - {55}^{2} } \\ \\ = \sqrt{2304} \\ \\ = 48 \\ \\ \tan(C) = \frac {BD}{BC} \\ \\ \tan(C) = \frac {55}{48} \\ \\ [/tex]

Answer:

124.8

Step-by-step explanation:

is the answer I did it in my note book

Answer:

Its 11/4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let the equation is, y = x² + bx + c

Here, b = Sum of the roots

And c = multiplication of the roots

Roots of the equation are (5 + 2i) and (5 - 2i).

Step 1,

Sum of the roots 'b' = (5 + 2i) + 95 - 2i)

                             b = 10

Step 2,

Multiplication of the given roots = (5 - 2i)(5 + 2i)

                                                     = 5² - (2i)²

                                                     = 25 + 4

                                                     = 29

Step 3

Therefore, equation of the quadratic function will be,

y = x² + 10x + 29

Answer:

She can only fill 10 pages completely.

Step-by-step explanation:

She can fill 10 pages, because 40/10=4.  She does not have enough pages left to fill another page fully.

Answer:

X=12 this is the answer and hope it helps :) and if u want it simplified u can simplify it

Answer:

There's a very simple way to solve this kind of problem. All we have to do is change the percent to a decimal and multiply it by her current grade.

81 × .15 = 12.15

For our purposes, we'll just round it down to 12. But anyway, raising her grade by 15% would mean raising it by 12 points.

81 + 12 = 93

This would give her an average of 93, not 95. She'd need to raise her grade 18% from 81 to get to her goal.

look above

Answer:

b

Step-by-step explanation:

Answer:

The width is 35 cm.

The length is 25 cm.

Step-by-step explanation:

Answer:

63/2

Step-by-step explanation:

Answer:63/2

Step-by-step explanation:

Answer:

24 would be your answer.

Answer:

24 would be the answer! :>

Answer: x=7

Step-by-step explanation:

Step 1: Subtract 17x from both sides.

13x+15−17x=17x−13−17x

−4x+15=−13

Step 2: Subtract 15 from both sides.

−4x+15−15=−13−15

−4x=−28

Step 3: Divide both sides by -4.

−4x/−4 =−28/−4

x=7

Answer:

S=1.25

Step-by-step explanation:

If this is confusing pls let me know!! :) (p.s. sorry bout my handwriting lol)

A simple run down of the problem I guess is that first you need to solve one equation for either s or b. I chose the first equation to solve for b and I got b=(-3/2s)+(9.25/2). Then, the second thing you need to do is to put the answer to b in the second equation. This would be 3((-3/2s)+(9.25/2))+45 = 13.25. Then you basically solve that equation for s and you should get s=1.25. If you need to also find b you can plug s=1.25 into either of the starting equations. All done :) sorry this took long lol

Ans: The answer of your question is S=1.25

Answer:

Step-by-step explanation:

Answer:

y = - 3x + 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 3, then

y = - 3x + c ← is the partial equation

To find c substitute (3, - 2) into the partial equation

- 2 = - 9 + c ⇒ c = - 2 + 9 = 7

y = - 3x + 7 ← equation of line

Answer:

3√512 = 8

Step-by-step explanation:

Step 1: Find the prime factors of 512

512 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2

Step 2: Pair the factors of 512 in a group of three, such that they form cubes.

512 = (2 × 2 × 2) × (2 × 2 × 2) × (2 × 2 × 2)

512 = 23 × 23 × 23

Using the law of exponent, we get;

512 = 29 [am.an = (a)m+n]

Or

512 = (23)3 [(am)n = amn]

512 = 83

Step 3: Now, we will apply cube root on both the sides to take out the factor (in cubes) as a single term.

3√512 = 3√(83)

So, here the cube root is eliminated by the cube of 8.

Hence, 3√512 = 8

Answer:

254.469

Step-by-step explanation:

Formula for Volume of Cylinder:   V=πr²h

Answer:

Number 3/ letter C

Step-by-step explanation:

We have to,

write a word problem for this equation,

→ 2/3 × 5

Let's write a word problem,

For one student 2/3 part of one cake is needed. Then how many cakes will they have to buy for 5 students?

[tex]\boxed{\large{\bold{\blue{ANSWER~:) }}}}[/tex]

we have to write a word problem for this equation

[tex]\frac{2}{3}*5[/tex]

word problems:-

if 1 people needs 2/3 work.So how much work will need to 5 people.??

Answer:

15

Step-by-step explanation:

We know that from e to f is 6 and that e to g is 21 , to find the answer we need to subtract the two numbers. Hope this helps!

Answer:

y=-x+2

Step-by-step explanation:

m=(y2-y1)/(x2-x1)=(-5-1)/(7-1)=-6/6=-1

y-y1=m(x-x1)

y-1=-1(x-1)

y-1=-x+1

y=-x+1+1

y=-x+2

Answer:

y=-1x+2

Step-by-step explanation:

m=  

-5 - 1 over 7 - 1

(1,1). y=mx+b or 1=-1 × 1+b, or solving for b: b=1-(-1)(1). b=2.

(7,-5). y=mx+b or -5=-1 × 7+b, or solving for b: b=-5-(-1)(7). b=

Answer:

8

Step-by-step explanation:

8 + 8 x 8 = 8 + 64 = 72

Hope that helps!