You are making 100 mL of a saline solution in science class that has a strength of 50%.
You are going to mix some 40% saline solution with some 60% saline solution to do this.
How much of each should you add?

HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP

Answer:

C=F/M

C=2640/75

C=35.20

$35.20 Per Band Member

Step-by-step explanation:

C= Cost Per Band Member

F = Food and Bus Cost

M = Band Members

Answer:

The answer is 32.2 (35 with ramainder of 15)

Step-by-step explanation:

THE ANSWER IS 35 WITH REMAINDER OF 15

Answer:

40cm

Step-by-step explanation:

Centimeter means "one hundredth of a meter," so:

1 m = 100 cm

How many meters times 100 will get you how many cm:

2/5m = ? cm

2/5 (100) = ? cm

200/5 = ? cm

40 = ? cm

2/5m = 40 cm

Answer:

40%

Step-by-step explanation:

You can do 14 divided by 35 to get the decimal 0.4.

Then you multiply 0.4 by 100 because percent is always 100

40%

Hoped I helped

Answer:

53

Step-by-step explanation:

Answer:

23 days

Step-by-step explanation:

Answer:

3/4

Step-by-step explanation:

I drew a slope triangle and found the slope by finding the distance between two points on the line.

[tex]vertical distance/horizontal distance[/tex]

Hope this helped!

The slope of the line graphed in the coordinate grid will be;

⇒ m = -4/5

The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The line graphed in the coordinate grid is shown in figure.

Now,

Let two points on the graph of the line are (5, 0) and (0 , 4)

We know that;

Slope of the line passing through the points (x₁ , y₁) and (x₂, y₂) is,

⇒ m = (y₂ - y₁) / (x₂ - x₁)

Hence, Slope of the line  passing through the points (5, 0) and (0 , 4) is,

⇒ m = (y₂ - y₁) / (x₂ - x₁)

⇒ m = (4 - 0) / (0 - 5)

⇒ m = 4 / (-5)

⇒ m = -4/5

Thus, The slope of the graph = - 4/5

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Answer: The answer is $44,496. I got it right on the test. Sorry that I was late...

Step-by-step explanation:

:)

Answer:

30

Step-by-step explanation:

Theorm

Dont be Stressed Im here

X=6

Answer:

she needs four eggs for her omelette

Step-by-step explanation:

2/3 of a cup is 10 table spoons ans 2 teaspoons

Answer:

x= 8.9 cm

Step-by-step explanation:

First, since we know that the radius of the circle is 5 centimeters, we know that the diameter of the circle and the hypotenuse of the triangle is 10 centimeters long. Then you use the pythagorean theorem to find out the length of side x. The equation would be: 4.5^2 + x^2= 10^2. Next, you simplify the equation by squaring the squares to get. 20.25 + x^2= 100. Finally, you would subtract 100 and 20.25 to get 79.75 and take the square root of that number to get your x value. x= [tex]\sqrt{79.75}[/tex]. When you do this equation you come out with x=8.93028554975 and then round it to the nearest tenth which is 8.9 cm.

Answer:

270 dollars

Step-by-step explanation:

He's going to watch 90 hours of tv in 30 days, so multiply 90 hours x 250 watts, Which is 22500 watts over 30 days, then convert to kilowatts which would be 22.5 kilowatts total. He used .25 kilowatts an hour every day. Then multiple 22.5 x 12 cents to get your answer 270. He paid 270 dollars for electricity for the tv.

Answer:

3)x=−9  and x=4

4)x=−12  and x=−5

5)x=8  and x=14

6)x=−7  and x=3

7)x=-1 2/3 and x = 1/4

8)x=2/5

Step-by-step explanation:

Hope this helps

Answer:

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% is read p 'percent',

p% = p/100 = p ÷ 100.

10% = 10/100 = 10 ÷ 100 = 0.1.

100% = 100/100 = 100 ÷ 100 = 1.

Increase the number by 10% of its value.

Percentage increase = 10% × 2,880

New value =

2,880 + Percentage increase =

2,880 + (10% × 2,880) =

2,880 + 10% × 2,880 =

(1 + 10%) × 2,880 =

(100% + 10%) × 2,880 =

110% × 2,880 =

110 ÷ 100 × 2,880 =

110 × 2,880 ÷ 100 =

316,800 ÷ 100 =

3,168

Calculate absolute change (actual difference)

Absolute change (actual difference) =

New value - 2,880 =

3,168 - 2,880 =

288

Step-by-step explanation:

Answer: Decrease a number by 25% is the same as increasing by 75%

Step-by-step explanation:

Answer:

Yes 25% + 30% =55%

Step-by-step explanation:

yes because 25+30 =55

The final cost not be same as 55% discount.

To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.

Given:

A toy store offers an additional 25% discount on board games that have already been reduced by 30%.

let the the price of toy be $100.

So, the price after 30% discount

= 100 - 100 x 0.30

= 100 - 30

= $70

and, additional 25% discount

= 70 - 70 x 0.25

= $52.5

Now, if discount is 55% then price would be

= 100 - 100 x 0.55

= $45

Hence, the case is not same.

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≻───── ⋆✩⋆ ─────≺

Answer:

First, find the area of rectangle.

20 × 30 = 600

Next multiply the square

10 × 10 = 100

Now the curve.

[tex]\frac{10 * 10 = 100}{2}[/tex]

100/2 =50

Then Add all of it.

[tex]600 + 100 + 50 = 750[/tex]

[tex]Area = 750[/tex]

Hope this helps!

-Fishylikeswater

Answer:

y = -1/3x + 3

Step-by-step explanation:

Slope = -1/3

Y-intercept = (0, 3)

Answer:

Equation B: 2x+3x-6 is accurate

Answer:

A: x2+3x-6=x+2

Step-by-step explanation:

A: x2+3x-6=x+2

x2+3x-x-6-2=0

x2+2x-8=0

(x+4)(x-2)=0

x=-4, x=2

B:x2+3x-6=3x+2

x2+3x-3x-6-2=0

x2-8=0

x2=8

x=±[tex]\sqrt{8\\}[/tex] Not accurate

Answer:

(-4, 2)

Step-by-step explanation:

when its reflected across the y-axis it goes from (x, -y) to (-x, y)

Answer:

the price Mr. Quick paid is=$1343

I think I can help you with this

you can easily solve this by using a rule of three

Step one

find the discount value  if

$1580⇒  100%

$x? ⇒ 15%

do the relation

the discount is $237

the price Mr. Quick paid is

the price Mr. Quick paid is=regular price - discount

the price Mr Quick paid is=$1580-$237

the price Mr Quick paid is=$1343

I hope it helps, Have a great day!!! :)

Step-by-step explanation:

Answer:

What are the options?

Step-by-step explanation:

Possible solutions shown of the graph: (0,5) or (4,0)

Answer:

George Washington.

Step-by-step explanation:

The first president of the United States was George Washington. Patrick Henry and George Mason where never elected President. Thomas Jefferson was the Third President. John Adams (not a choice in your question) was the second President.

Answer:

1. B (40- 3n)

2.c (86)

Step-by-step explanation:

1. The shirts cost 3n. So you do 40- 3n(what the shirts cost) to find the amount of change he will recive.

2. Just plug the numbers in- 1.8(30) + 32=86.

Answer:

hope it helped have a nice day