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zhenek [66]
3 years ago
6

How many ounces of a 40% alcohol solution must be mixed with 16 ounces of a 45% alcohol solution to make a 44% alcohol solution

Mathematics
1 answer:
goblinko [34]3 years ago
3 0
I'm pretty sure it's 4 ounces so it makes up 1/5 of 40% alcohol and 4/5 of 45% alcohol
You might be interested in
Determine the center and radius of the following circle equation:
-BARSIC- [3]

Answer:

(6, 9 ) and r = 3

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Given

x² + y² - 12x - 18y + 108 = 0

Rearrange the x- terms and the y- terms together and subtract 108 from both sides, that is

x² - 12x + y² - 18y = - 108

To obtain standard form use the method of completing the square

add ( half the coefficient of the x and y terms )² to both sides

x² + 2(- 6)x + 36 + y² + 2(- 9)y + 81 = - 108 + 36 + 81

(x - 6)² + (y - 9)² = 9 ← in standard form

with centre = (6, 9 ) and r = \sqrt{9} = 3

7 0
3 years ago
Need help with this question
Ne4ueva [31]

Answer:

About 3%

Step-by-step explanation:

It decreased.

3% of 465056=13951

465056-13951=451105

3.6% of 465056=16742

465056-16742=448314

The amount you want it 450678 and 451105 is closer to 450678 than 448314.

4 0
2 years ago
I need help is it A B C or d
horsena [70]
D because you need to subtract the gift card and everything not add
7 0
3 years ago
Read 2 more answers
A house is purchased at a selling price of $285,000. The bank requires a 15% down payment. The current mortgage rate is 3.5%. De
Anni [7]

Answer:

\large \boxed{\$242250}}

Step-by-step explanation:

\begin{array}{rcr}\text{Selling price} & = & \$285000 \\-\text{Down payment} & = &-0.15 \times \$285000 =\qquad -42750\\\text{To be financed}& = & \mathbf{\$242250}\\\end{array}\\\text{The amount to be financed is $\large \boxed{\mathbf{\$242250}}$}

3 0
3 years ago
18. The servicing of a machine requires two separate steps, with the time needed for the
iVinArrow [24]

Answer:

Step-by-step explanation:

Let X denote the first step

Let Y denote the second step

Then

E(X) = 0.2

E (Y) = 0.3

V (X) = 0.04

V (Y) = 0.09

Now,

E(X,Y) = E[X] + E{Y}

0.2 + 0.3 = 0.5

And since X and Y are independent

Therefore,

V(X , Y) = V(X) + V(Y)

= 0.04 + 0.09

= 0.13

Now required probability is

P\{ \sum X_i+\sum Y_i

= Φ(-1.24)

= 1 - Φ (1.24)

= 1 - 0.8925

= 0.1075

4 0
3 years ago
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