Mathematics High School

A nurse mixes 60 cc of a 70% saline solution with a 20% saline solution to produce a 25% saline solution. How much of the 20% solution should he use

Answers

Answer 1

40%
hope this helped

Related Questions

i will brian list you please help

Answers

Answer:

.......the answer is C)

Answer:

Step-by-step explanation:

A recipe uses 7 parts of milk for every 5 parts of sugar how much sugar do you use when you use 28 cups of milk

Answers

Answer:

the answer is 20 cups of sugar

Step-by-step explanation:

7/28= 5/x

x= 20.

x reps the number of cups of sugar

How many boxes of envelopes can you buywith $12 if one box costs $3?

A. 5
B. 4
C. 3
D. 2

Answers

Answer:

Step-by-step explanation:

Divide amount of money ($12) by the cost of the box ($3)

12/3 = 4

Answer:

B. 4

Step-by-step explanation:

Divide the amount of money (12) by the cost of the boxes (3). 12 divided by 3 is 4.

Find an equation for the perpendicular bisector of the line segment whose endpoints
are (3,5) and (-9, -1).

Answers

y=-0.5x-6.5 i think but i could be wrong for the y-intercept

This year Jose watched 80 movies. He thought that 72 of them were very good. Of the movies he watched, what percentage did he rate as very good?

Answers

Answer: 90%

Step-by-step explanation: I hope this helps

The answer to this question is 90%

Math Can you Help me out? Giving Brainliest, can you also explain your answer

Answers

Answer:

Only 5

Step-by-step explanation:

You just place each in. The one that fits in the equation is the right one.

11-5=6 and 6 is less than 7.

11-3=8 and 8 is greater so it doesn't work.

Answer:

its x=5

Step-by-step explanation:

You just place each in. The one that fits in the equation is the right one.

11-5=6 and 6 is less than 7.

11-3=8 and 8 is greater so it doesn't work

Work out the value of R. Give your answer in standard form to an appropriate degree of accuracy.

Answers

Answer:

R = 8,228,571.43 (Approx)

Step-by-step explanation:

Given:

R = x²/y

x = 4.8 x 10⁵

y = 2.8 x 10⁴

Find:

Value of R

Computation:

R = x²/y

R = (4.8 x 10⁵)²/ (2.8 x 10⁴)

R = 23.04 x 10¹⁰ / (2.8 x 10⁴)

R = 8.22857.. x 10⁶

R = 8,228,571.43 (Approx)

Answer:

8.2x10^6

Step-by-step explanation:

The Celluloid Cinema sold 290 tickets to a movie. Some of these are child tickets and the rest were adult tickets. A child ticket cost $8 and an adult ticket costs $8.5. If the cinema sold 2407.5 worth of tickets, determine how many child tickets and how many adult tickets were sold?

will give brainliest !

Answers

Answer:

child tickets: 115

adult tickets: 175

Step-by-step explanation:

number of child tickets = x

number of adult tickets = y

(value of child ticket [8] * number of child tickets [x]) + (value of adult ticket [8.5] * number of adult ticket [y]) = total value (2407.50)

8x + 8.5y= 2407.50

290 (total number of tickets) = x (number of child tickets) + y (number of adult tickets)

290 = x+y

system of equations: 8x + 8.5y= 2407.50

290 = x + y

solve equation:

x = 115

y = 175

The length of an online commercial is about 15.1 seconds

Answers

Answer:

Step-by-step explanation:

Interesting...

I didn't know that

Zakele must repack tins that come in large boxes into smaller boxes. A large box contains 48 tins and a small box can hold 15 tins. Zakele must must repack 125 large boxes. How many small boxes will he need?

Answers

Answer:

400 small boxes

Step-by-step explanation:

125 boxes would contain : 125 x 48 = 6000 tins

the number of small boxes needed to contain 6000 tins = 6000 / 15 = 400 small boxes

This is for math Pls Answer it ???.

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Answer:

Step-by-step explanation:

D. Just look at the ratio 6:12 yk

Which equation below could describe the graph shown?

Answers

Answer:

Step-by-step explanation:

I dont really know how to explain it sorry

(3) y = x - 2 describes the graph

answer this pleaseeee

Answers

Answer:correct proportion is: 4/6=9/x

Step-by-step explanation:

In a class of 27 students, if one out of every nine students
received an A on a quiz, how many students received an A?

Answers

The answer would be 3

how do you increase 220 by 5%

Answers

Step-by-step explanation:

Increase the number by 5% of its value.

Percentage increase = 5% × 220

New value =

220 + Percentage increase =

220 + (5% × 220) =

220 + 5% × 220 =

(1 + 5%) × 220 =

(100% + 5%) × 220 =

105% × 220 =

105 ÷ 100 × 220 =

105 × 220 ÷ 100 =

23,100 ÷ 100 =

231

I need help with this

Answers

12/16 divided by 2 = 3/8

Solve for x : 8(2x+3)=-2x+96

Answers

Answer:

−

√

If not I’m sorry.

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

8(2x+3)=-2x+96

16x+24=-2x+96

18x=72

x=4

If a machine that prints designs on T-shirts prints 500 shirts in 3 hours, how many hours will it take to print designs on 1,800 shirts?
A.
6

B.
9.8

C.
10.8

D.
12

Answers

Answer:

The answer is D. 12

Step-by-step explanation:

In 3 hours, it prints 500 shirts. That means 6 hours it will print 1,000 shirts, in 9 hours it will print 1,500 shirts, and in 12 hours, it will print 2,000 shirts. So in 12 hours, it will print 1,800 shirts.

Answer please!!!!!!! I APPRECIATE IT THANKS

Answers

I believe it’s C. D wouldn’t make sense because the answer has to be negative.

During the Little League state tournament, there were 1,980 fans at the first game. At the second game, there were 2,540 fans. Which is the total number of fans at the two games?

Answers

Answer:

just add

Step-by-step explanation:

4520

welcome......

please help. find x

Answers

Answer:

Step-by-step explanation: well it has 4 sides. 5 plus 13 plus 35 is 53 and then divide by 4. hopefully that helps. I think that is how it works

what is the 30th term in the linear sequence below
-5,-7,-9,-11,-13

Answers

Answer:

Step-by-step explanation:

if 3n-8 = the formula then you replace n with 30 to get the 30th term

so type into your calculator 3(30)-8 and you get 82

Help meeeeeeeeeeeeeeeeeee

Answers

Answer:

Step-by-step explanation:

Since we know all the sides are equal, it’s an equilateral triangle and for eqilateral triangles all angles are of 60°, and angles lesser then 90° are acute so we can say it’s an acute triangle

hope it helped:)

Order the following from Greatest to least.
5/12, 39%, 0.54, 4/25, 4%, 0.3

Answers

Answer:

0.54, 5/12, 39%, 0.3, 4.25, 4%

Step-by-step explanation:

Fiona needs $3676 each month for bills and rent, and
$166 each week for weekly expenses. How much does
Fiona need to net yearly?
A. $56,586
B. $45,890
C. $59.764
D. $52.744

Answers

D 52744
Explanation
I did all the calculations and I’m 99% sure I’m correct

PLEASE ANSWER ASAP !!!!!

Answers

Answer:

it would be -4<x< inf which is B

The answer is B. It’s greater/equal because the dot is filled in. Domain means how much the lines spans across the x axis, and since the line has no end it will go on forever, or until infinity.

2x+3=5

I need help please

Answers

Subtract 3 to bath sides: 2x=5-3 —> 2x=2
Then divide both sides by 2 to isolate the x: x=1

Answer:

Step-by-step explanation:

2x + 3 = 5

Subtract 3 on both sides to get the different values (variables, and numbers without variables) seperated.

2x + 3 - 3 = 5 - 3

2x = 2

Divide by 2 on both sides to isolate the variable

2x/2 = 2/2

x = 1

Check

Now that you have what "x" is (1) you can substitute that into the equation

2x + 3 = 5

2(1) + 3 = 5

2 + 3 = 5

5 = 5 CORRECT

Hope this helped!

Have a supercalifragilisticexpialidocious day!

help me is my third time posting this can anyone please help me 2 questions can at least answer 1 please

Answers

Answer:

For 11, x=18

Step-by-step explanation:

Use a ratio to solve for x since the triangles are similar

16/20=(16+12)/(20+x-3), first simplify both sides

4/5=28/(17+x), cross multiply

4(17+x)=5*28

17+x=5*7

x=35-16

x=18

can anyone answer 12+5x-18x+9 please show work

Answers

Answer:

-13x + 21

Step-by-step explanation:

12+5x-18x+9

Like terms: 5x, -18x and 12, 9

Add like terms: 5x + -18x = -13x, 12 + 9 = 21

12 + 5x - 18x + 9 = -13x + 21

I hope this helps :D

12 -13x +9=0
-13x=-12-9
-13x=-21
13x=21
X=21/13

Please I need help on this problem

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

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