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Answer:

280 ml as a percentage of 140 l is 0.2%

Step-by-step explanation:

∵ There is an amount of 280 ml

∵ The total amount is 140 l

→ Change the liter to milliliters using the 1st point above

∴ 140 l = 140 × 1000 = 140000 ml

∴ 140 l = 140,000 ml

→ Now divide the amount by the total, then multiply the quotient by 100%

∵ 280 ÷ 140,000 = [tex]\frac{1}{500}[/tex]

∵ [tex]\frac{1}{500}[/tex] × 100% = 0.2%

∴ 280 ml as a percentage of 140 l is 0.2%

Answer:

5x +2y =38

5(6) +2y = 38

30 +2y= 38

2y= 8

y= 4

(6, 4)

5(0) +2y =38

2y= 38

y= 19

(0,19)

5(-2) +2y= 38

-10 +2y =38

2y= 48

y=24

(-2,24)

Answer:

n = -35

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define equation

n/-5 = 7

Step 2: Solve for n

Step 3: Check

Plug in n into the original equation to verify it's a solution.

Here we see that 7 does indeed equal 7.

∴ n = -35 is a solution to the equation.

Answer:

The standard deviation of the weight, σ, is approximately 4.73 kg

Step-by-step explanation:

The weights of the six puppies are;

[tex]x_i[/tex] = 1, 2, 7, 7, 10, and 15

The number of puppies, n = 6

Therefore, we have;

The mean = μ = ∑x/n = (1 + 2 + 7 + 7 + 10 + 15)/6 = 7

The standard deviation, σ, is given as follows;

[tex]\sigma =\sqrt{\dfrac{\sum \left (x_i-\mu \right )^{2} }{n}}[/tex]

By substituting, we have;

[tex]\sigma =\sqrt{\dfrac{ \left (1-7 \right )^{2} + \left (2-7 \right )^{2} + \left (7-7 \right )^{2} + \left (7-7 \right )^{2} + \left (10-7 \right )^{2} + \left (15-7 \right )^{2} }{6}}[/tex]

Simplifying gives;

[tex]\sigma =\sqrt{\dfrac{ \left (-6 \right )^{2} + \left (-5 \right )^{2} + \left (0 \right )^{2} + \left (0 \right )^{2} + \left (3 \right )^{2} + \left (8 \right )^{2} }{6}} =\sqrt{\dfrac{ 36 + 25 + 0 +0+ 9 + 64 }{6}}[/tex]

[tex]\sigma =\sqrt{\dfrac{ 134 }{6}} = \sqrt{\dfrac{67}{3} } \approx 4.72582[/tex]

The standard deviation of the weight, σ ≈ 4.73 kg to two decimal places.

Answer:

It’s actually 5.18 kg on khan

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

16-30i

Answer:

1/6  (16.667%)

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Answer:

Hello. 43 is prime. All the other numbers are composite.:-)

Step-by-step explanation:

Answer: Checkings, Retirement, Savings

Answer:

0.08

Step-by-step explanation:

4/25^1/2 = 0.08

=======================================================

Explanation:

The information that m || n is not needed or used, so I'm not sure why your teacher put that in there.

The angles shown are a linear pair. They are adjacent and they are supplementary. They form a straight angle.

Supplementary angles add to 180.

(x-17)+(5x-1) = 180

x-17+5x-1 = 180

(x+5x)+(-17-1) = 180

6x-18 = 180

6x = 180+18

6x = 198

x = 198/6

x = 33

---------

Extra info:

if x = 33, then,

Adding the angles gives 16+164 = 180 which helps confirm our answer.

Answer:

No Solution

Step-by-step explanation:

None

Answer:

ACB:64   ACD:116  GFH:64  EFG:26

Step-by-step explanation:You could see how the angles are located.

Answer:

A ) Adjacent  and supplementary  B) Adjacent n neither C) is the same as A D) Non adjacent n complementary

Step-by-step explanation:

The Small arrow is Non adjacent or adjacent and under the big one is complementary, supplementary or neither

Answer:

4c^2 - 3a^2 -7ac +6bc -ab

Step-by-step explanation:

solve first 3a( a + b + c) - 2b ( a+ b +c)

which is = 3a^2 + 3ab + 3ac - 2ab - 2b^2 -2bc

there for 4c(-a + b +c) -( 3a^2 + 3ab + 3ac - 2ab - 2b^2 - 2bc)

= -4ac-3ac +4bc+2bc -3ab+2ab + 4c^2 -3a^2

=4c^2 - 3a^2 -7ac +6bc -ab

Answer:

The given line y = -2x +30 is a straight line as it is written in the

form y = mx + b.

The graph of the line y = -2x +30 is also straight and attached below.

Step-by-step explanation:

Given the equation

y = -2x +30

We know that the slope-intercept form of the line equation is

[tex]y=mx+b[/tex]

Where m is the slope and b is the y-intercept

Writing the equation in the slope-intercept form

y = -2x +30

y = mx + b

Thus,

m = -2

b = 30

Thus, the given line y = -2x +30 is a straight line as it is written in the

form y = mx + b.

The graph of the line y = -2x +30 is also straight and attached below.

Answer:

First one

Step-by-step explanation:

Y=1/2x+4

Answer:

D. m = -15/1

Step-by-step explanation:

Slope Formula-

m = (y2-y1)/(x2-x1)

Using two random points-

(-1, 13) (0,-2)

-1 = x1

13 = y1

0 = x2

-2 = y2

m = (-2 - 13)/(0-(-1))

m = -15/1

Step-by-step explanation:

hey i hope this helps idk if its clear enough but yeah

Answer:

The answer is B

Step-by-step explanation:

Answer:

The width of the new phone will be 4.37 inches

Step-by-step explanation:

Proportions

A direct proportion is a relation between variables where their ratio is a constant value.

The original length of a cell phone was L=1.2 inches and the original width was 4.6 inches.

A new version of the cell phone is to be released with proportional dimensions with respect to the original cell phone.

We are given the length of the new phone L'=1.14 inches. The ratio of the lengths is 1,2/1.14=1.053.

The new width should be W'=4.6/1.053=4.37 inches

The width of the new phone will be 4.37 inches

Answer:

4.41

Step-by-step explanation:

delta math said so

Answer:

Multiply=times top then bottom. 1/2*1/3=1*1/2*3=1/6

Divide Fractions=take reciprocal then multiply. 1/2=1/3=1/2*3/1=3/2

Step-by-step explanation:

Not needed

Answer:

1. 315

2. 8 miles per hour

3. 45 fish

Step-by-step explanation:

Glad I could help!

Answer:

-6

Step-by-step explanation:

Answer:

$80.49

Step-by-step explanation:

39.95 + 17.99 x 2

17.99 x 2 = 35.98

35.98 + 39.95 = 75.93

75.93 + 6% = 80.49

Answer:

W = x^2 - 2yz / - w

0 = x^2 - 2yz - w / +2yz

2yz = x^2 - w // 2z

y = (x^2 -w ) / 2z

So correct answer is D

Step-by-step explanation:

First we find the function

g

(

f

(

x

)

)

To do this we substitute the variable

x

in

g

(

x

)

for

f

(

x

)

:

∴

g

(

x

)

=

3

x

−

2

g

(

f

(

x

)

)

Answer:

6

Step-by-step explanation: