A chemist needs to mix a 40% hydrochloric acid with a 70% hydrochloric acid to create a 20 oz mixture that is 55% hydrochloric acid. How much of the 70% hydrochloric acid will she need? (don't forget your units)
PLEASE HELP ASAP

Answers

Answer 1

Answer:

y=10

Step-by-step explanation:


Related Questions

Help ME PLSSS HURRY!!!!!!

Answers

Answer:

None of them are proportiionsal

Step-by-step explanation:

Answer:

i don't even see any  proportiionsal

Step-by-step explanation:

I GIVEEE BRAINLILSTTTT

Answers

Answer:

oi['po

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lk/

Step-by-step explanation:

l/kkllk/lk/l/

PLSSSSS HELP I HAVE BEEN STUCK ON THIS FOR THE PAST HOUR!!!!!!!!!!!!!!!!!!!!!!!!!

Take a factor out of the square root and simplify the expression:

[tex]-0.05*\sqrt{28,800}[/tex]

Answers

Answer:

[tex] - 6 \sqrt{2} [/tex]

Step-by-step explanation:

simplify

[tex] \sqrt{28800} [/tex]

to

[tex]120 \sqrt{2} [/tex]

then

-0.05 × 120 = -6

then we have our answer

-6√2

Holiday dinners at June’s house are always a festive occasion. One particular holiday, June has 16 guests.

June offers the guests apple pie and blueberry pie. While any guest can have slices of both pies, June never serves a particlar guest more than one slice of each pie and each guest is allowed to decline any slice of pie they don’t care for.

June serves a total of 10 slices of apple pie and a total of 11 slices of blueberry pie.

June serves 8 guests slices of both pies.

How many guests had no pie at all?


a. 3

b.2

c.0

Answers

Answer:

a. 3

Step-by-step explanation:

We solve this question gathering the information given in the question.

June serves 8 guests slices of both pies.

This is soon going to be used

June serves a total of 10 slices of apple pie

This includes the 8 guests which got served both pieces. So 10 - 8 = 2 guests were served only apple pie.

11 slices of blueberry pie.

By the same logic as above, 11 - 8 = 3 guests were served only blueberry pie.

So

8 + 2 + 3 = 13 guests were served at least one pie.

16 - 13 = 3 guests had no pie at all.

Which expression is equal to 27 when x = -6?
A (-x)2 - 9
B (-2x)2 - 120
C 10(-x) +33
D 3(x-4) + 3

Answers

Answer:

C

Step-by-step explanation:

i got C & D to both be -27 but I think I made a mistake in C w the negatives so I believe it is C.

I hope this helps, have a great day/ night :)

Plot A shows the number of hours ten girls watched television over a one-week period. Plot B shows the number of
hours ten boys watched television over the same period of time.
Television Viewing Hours for a One-Week Period
Plot A
O
0 1 2 3 4 5 6 7
8
9 10
Plot B
0 1
2
3 4 5
7
8 9 10
Which statement compares the shape of the dot plots?
Mark this and return
Save and Exit
Sun

Answers

Answer:

I think its B

Step-by-step explanation:

Identify the property you would use to solve this equation:
y - 7 = 28

Answers

The property used to solve y - 7 = 28 is the Addition Property of Equality

awnser: y=35

explanation: I ADDED the 7 to 28 to cancel out the 7, leaving me with y=35, hope this helped

How many 1 1/2 -pound loaves of bread can be made from 9 pounds of dough?

Answers

Answer:

6

Step-by-step explanation:

You divide 9 by 1 1/2.

Which expression has a value greater than 4^3?

Answers

Answer:

(-3)^4

Step-by-step explanation: We just have to evaluate

So, the only expression that exceeds 4^3 is (-3)^4:

Please someone help me do number 9

Answers

Answer:

j=-15

Step-by-step explanation:

Since it it just the exponent of x, we will only see what x's exponent will be:

[tex]x^{6} +x^{-21}[/tex]

Add 6 and -21:

6-21= -15

j=-15

what is the square root of 430

Answers

Answer:

√430 or 20.74

Step-by-step explanation:

√430

Prime factorize 430

√2 · 5 · 43

There are no pairs to take out of the root, so the most simplified form of √430 is √430.

If you want the decimal form, it is 20.74

Please mark me Brainliest :)

A man needed to sell a car. He priced it at 3500 the first day. The second day he reduced the price by 15%. What was the price of the car after this reduction?

Answers

Answer:

Step-by-step explanation:b

For what value of x is the rational expression below equal to zero?
X-4
X5
A. -6
B. -4
C. 6
D. 4

Answers

The answer would be D

Please help I will mark brainleist if correct!!

Answers

The answer is b. 1/3, because the x value multiplied by 1/3 will equal the y value below it.

9/45 how to simplify to it lowest term​

Answers

Answer:

1/5

Step-by-step explanation:

divide numerator and denominator by 9.

(Because that will go into both 9 and 45.)

9/45 = 1/5

A circular mirror has a radius of 6 inches what is the circumference of the mirror

Answers

Answer:

37.68

Step-by-step explanation:

pie = 3.14

3.14 x 2 = 6.28

6.28 x 6 = 37.68

Answer: 37.68

Step-by-step explanation:

Factor the algebraic expression.
30a + 25

Answers

Answer:

5(6a+5)

Step-by-step explanation:

Find the zeros of the function.

Enter the solutions from least to greatest.

f(x) = 5x^2 - 20

lesser x =

greater x =

Answers

Answer:

lesser x = -2

greater x = 2

Step-by-step explanation:

The values of a function f(x) are the values of x for which f(x) = 0.

In this question:

[tex]f(x) = 5x^2 - 20[/tex]

So, finding the zeros:

[tex]5x^2 - 20 = 0[/tex]

[tex]5x^2 = 20[/tex]

[tex]x^2 = \frac{20}{5}[/tex]

[tex]x^2 = 4[/tex]

[tex]x = \pm \sqrt{4}[/tex]

[tex]x = \pm 2[/tex]

So

lesser x = -2

greater x = 2

the missing exponent 1,728 =12 (?)​

Answers

Answer:

x=144

Step-by-step explanation:

2y-11=25 solve the equation

Answers

Answer:

18

Step-by-step explanation:

25 + 11 = 36

36/2 = 18

hope this helps

What type of table has the largest area

Answers

Answer:

The Rectangular Table Has The largest area of 1460 in^2

Follow the steps and write the equation represented by this graph.



Step 1: Write the general equation.

Step 2: Identify b, the Y intercept (x = 0) b=

Step 3: The second point from graph (x, y) P=
,

Step 4: Define m as ratio of rise / run m = rise /

Step 5: Put coordinates into ratio and get (7 -
) / (
- 0)

Step 6: Perform subtraction; get slope
/ 1

Step 7: Substitute values into y = mx + b

Step 8: Write answer y =
x +

Answers

Answer:

y = 4x + 3

Step-by-step explanation:

Step 1: Write the general equation

y = mx + b

Step 2: Identify b, the Y intercept (x = 0)

b is the value of y when x = 0.

From the graph, when x = 0, y = 3.

Therefore, b = 3

Step 3: The second point from graph (x, y):

P = (1, 7)

Step 4: Define m as ratio of rise / run:

[tex] m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

Step 5: Put coordinates into ratio:

Using the two coordinates, (0, 3) and (1, 7), we would have,

[tex] m = \frac{7 - 3}{1 - 0} [/tex]

Step 6: Perform subtraction to get slope:

[tex] m = \frac{4}{1} [/tex]

m = 4

Step 7: Substitute values into y = mx + b:

Thus, plug in the values of m and b into the slope-intercept equation.

b = 3, m = 4, therefore:

y = (4)x + (3)

Step 8: Write answer:

y = 4x + 3

Engineering The equation for the cross section of a spotlight is y+5= 1/2x^2.

measured in inches. The bulb is located at the focus. How far is the bulb from the

Vertex of the cross section?

Answers

Answer:

[tex]p=1/2\ or\ 0.5\ inches[/tex]

Step-by-step explanation:

From the question we are told that

Equation of cross section is [tex]y+5= \frac{1}{2x^2}[/tex]

Generally the equation can be rewritten mathematically as

  [tex]y+5= \frac{1}{2}x^2[/tex]

  [tex]x^2=(y+5)2[/tex]

  [tex](x-0)^2=(y-(-5))2[/tex]

Generally the equation of a parabola with vertical axis is mathematically given by

[tex](x - h)2 = 4p(y - k)[/tex]

Therefore  comparing equations

[tex](x-0)^2=(y-(-5))2[/tex]

[tex]4p=2[/tex]

[tex]p=2/4[/tex]

The distance from the bulb to the vertex of the cross section is given by

[tex]p=1/2\ or\ 0.5\ inches[/tex]

which expression is equivalent to 2(x+7)-18x+4/3

Answers

Answer:

do u need to show your work or u just need the answerz

Step-by-step explanation:

solve the following equation.
2x=4

Answers

Answer:

2

Step-by-step explanation:

well if your looking for x it would be 2

what expression is equal to 632

Answers

Answer:

2^3(3x5^2+2^2) = 632

Step-by-step explanation:

i big brain

Answer:

Step-by-step explanation:

Over the course of 6 days Tonda ran 17.22 miles She ran the same distance each day How far did Tonga run each day ?

Answers

Work Progress: 17.22mile/6 days = 2.87

Tonda ran 2.87 miles each day.

Answer:

103.32

Step-by-step explanation:so what you need to do is times the decimals so: 17.22 x 6 = 103.32

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answers

Answer:

Y = 0  , X = - 3/2

Step-by-step explanation:

Answer:

just give the brainliest to him

Step-by-step explanation:

find the value of x in the figure below

Answers

Answer:

24

Step-by-step explanation:

cuz its an iscosceles triangle so the angles are the same so

2x-4=44 and solve

I WILL GIVE BRAINLIEST PLS I NEED HELP, The scale drawing of a field in the shape of a triangle is shown below.
What is the actual area, in square meters, of this field?

Answers

Answer:

20

Step-by-step explanation:

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