If a ∝ b and a = 18 when b = 3, then find a when b = 5.

show how you got ur answer so I can see if it makes sense!

If A B And A = 18 When B = 3, Then Find A When B = 5.show How You Got Ur Answer So I Can See If It Makes

Answers

Answer 1

"a ∝ b" means "a is proportional to b", which in turn means there is some constant k such that

a = kb

We're given that a = 18 and b = 3, so that

18 = 3k   ⇒   k = 6

Then when b = 5, we would have

a = 6 × 5 = 30


Related Questions

Rewrite 39,500 × 103 in scientific notation.

Thank you

Answers

Step-by-step explanation:

39500 x 103 = 4,068,500

in scientific notation, that ia 4.0685 x 10⁶

Dave is selling magazines. He sold 2 for $3 and 3 for $5. What will Dave charge for 5 magazines if he keeps selling magazines at the same rate?

Answers

Dave would be selling 5 magazines for $9,.

plssss i need help




ASAPP​

Answers

Answer:

1 ) 1 cubic centimeter = 0.000001 cubic meters

2 ) 4 cubic meters = 4000000 centimeters

3 ) 948 cubic meters = 948000 liters

Step-by-step explanation:

1 )

Conversion

1 centimeter = 0.01 meters

1 cubic centimeter

= 0.01 x 0.01 x 0.01

= 0.000001 cubic meters

72 cubic meters

= 72 x 0.000001

= 0.000072 cubic centimeters

2 )

Conversion

1 meter = 100 centimeter

1 cubic meter

= 100 x 100 x 100

= 1000000 cubic centimeters

4 cubic meters

= 4 x 1000000

= 4000000 centimeters

3 )

Conversion

1 cubic meter = 1000 liters

948 cubic meters

= 948 x 1000

= 948000 liters

Two days ago, Susan was 18. Yesterday was her birthday and she is now 19. Next year, she will be 21. When is her birthday?

Answers

Answer:

New Years Eve I think?

Step-by-step explanation:

It kinda makes sense.

Dr. Strauss has a bottle that contains 18 ounces of medicine. How many​ one-fourth ounce doses are in 18​ ounces?

Answers

Answer: 72 one-fourth ounce doses in 18 ounces

Step-by-step explanation:

1/4's in 1 is 4.

18x4=72

Suppose you leave your house and travel 13 mi due west. then you travel 3 mi due south. how far are you from your house?

Answers

13.34 mi

from question,

perpendicular (p) = 3mi

base(b) = 13 mi

hypotenuse (h) = ?

from Pythagoras theorem,

h^2 = p^2 + b^2

h = √(3^2 + 13^2)

h = √(9+169)

h= √(178)

h= 13.34 mi

Answer:

≈ 13.3 miles

Step-by-step explanation:

a line due west and a line due south form a right triangle with the hypotenuse being the direct distance x from the house.

using Pythagoras' identity in the right triangle , then

x² = 13² + 3² = 169 + 9 = 178 ( take square root of both sides )

x = [tex]\sqrt{178}[/tex] ≈ 13.3

distance from house ≈ 13.3 miles ( to the nearest tenth )

1 2 3 or 4 please help!!!!!!

Answers

Line 3. It went from 100 to 600 showing that the demand was increased.


Bela Deere is an audiologist. She is married and claims 3 dependents. The state income tax rate is 4%. If
her employer withholds $3,040 for state income tax annually, find her annual salary.

Answers

answer :

$76,000

Step-by-step explanation:

reword it

4% of annual salary is 3040

.04x = 3040

x= 3040 ÷ .04

x=76,000

Evaluate the line integral, where c is the given curve. C xeyz ds, c is the line segment from (0, 0, 0) to (2, 3, 4)

Answers

The value of line integral is, 73038 if the c is the given curve. C xeyz ds, c is the line segment from (0, 0, 0) to (2, 3, 4)

What is integration?

It is defined as the mathematical calculation by which we can sum up all the smaller parts into a unit.

The parametric equations for the line segment from (0, 0, 0) to (2, 3, 4)

x(t) = (1-t)0 + t×2 = 2t  

y(t) = (1-t)0 + t×3 = 3t

z(t) = (1-t)0 + t×4 = 4t

Finding its derivative;

x'(t) = 2

y'(t) = 3

z'(t) = 4

The line integral is given by:

[tex]\rm \int\limits_C {xe^{yz}} \, ds = \int\limits^1_0 {2te^{12t^2}} \, \sqrt{2^2+3^2+4^2} dt[/tex]

 

[tex]\rm ds = \sqrt{2^2+3^2+4^2} dt[/tex]

After solving the integration over the limit 0 to 1, we will get;

[tex]\rm \int\limits_C {xe^{yz}} \, ds = \dfrac{\sqrt{29}}{12} (e^{12}-1)[/tex]   or

= 73037.99 ≈ 73038

Thus, the value of line integral is, 73038 if the c is the given curve. C xeyz ds, c is the line segment from (0, 0, 0) to (2, 3, 4)

Learn more about integration here:

brainly.com/question/18125359

#SPJ4

Answer choices:
A. 604.1 cm2
B. 398.5 cm2
C.575.3 cm2
D. 287.6cm2​

Answers

Answer:

D. 287.6 cm²

Step-by-step explanation:

» Concept

The lateral surface area of a 3D figure is the surface area of the solid, excluding the bases. For a cylinder, the bases are the two circles on top and bottom. The formula to find the LSA of a cylinder is 2πrh, where r = radius of the circle and h = height.

» Application

We are asked to find the lateral surface area of the cylinder given the radius as 4.2 cm and the height as 10.9 cm.

» Solution

[tex](2)(3.14)(4.2)(10.9)[/tex] [tex]6.28*45.78[/tex] [tex]287.4984[/tex]

Now, as you can see, the closest answer choice to 287.4984 is D. 287.6 cm².

Select all the numbers that are solutions that are equal x^2=15

Answers

Answer:

3x5=15

5x3=15

30/2=15

15x1=15

1x15=15

15/1=15

Step-by-step explanation:

Hope it helped !
Have a great day !

If 10% of a number is 16, find 5% of that number.

Answers

[tex]\text{If the number is x,}\\\\~~~~10\% \cdot x = 16\\\\\implies \dfrac{10x}{100} = 16\\\\\implies \dfrac x{10} = 16\\\\\implies x = 160\\\\\text{Hence,}~ 5\% \text{ of}~ 160 = \dfrac{5 \times 160}{100}=8[/tex]

8. What are the next three numbers in this pattern?
11, 22, 12, 23,...
a. 13, 23, 14
b. 32, 43, 33
c. 13, 24, 15
d. 13, 24, 14

Answers

Answer:

ANSWER =13,24,14 is the answer

Step-by-step explanation:

please follow

13,24,14(D)

Explanation: The

[tex] {even}^{th} [/tex]

number (i.e 22,23) can be obtained by adding 11 to its previous number. Ex. 23 = 12 + 11

And the odd number(i.e the first, third etc) can be obtained by subtracting 11 from its next number or by adding 1 to the previous odd number(i.e 12 = 11 + 1) Henceforth, the next number will be 12 + 1 = 13

The number after 13 will be 13 + 11 = 24The number after 24 will be 13 + 1 = 14

If you found this useful, please mark it as the BRAINLIEST.

XD

Determine the slope of the line that runs through points (-3,6) And (0,-8) using the slope formula.


YT -- YT

M= --------------

X2 – X2

Answers

Answer:

-14/3

Step-by-step explanation:

6 - (-8)       14

---------- = --------

-3 - 0         -3

[tex]\large\textsc{answer :}[/tex]

Pls refer to "calculations" !

[tex]\large\textsf{\textbf{Calculations :}}[/tex]

[tex]\boxed{\\\begin{minipage}{3cm}\xrightarrow{slope \:formula : }\\ $\displaystyle\frac{y2-y1}{x2-x1} \\ \end{minipage}}[/tex]

[tex]\boxed{\\\begin{minipage}{3cm}\xrightarrow{slope\:of\:line\::} \\ $\displaystyle\frac{-8-6}{0-(-3)} \\ \end{minipage}}[/tex]

Simplify as follows :

[tex]\boxed{\\\begin{minipage}{3cm}\xrightarrow{slope\:of\:line\:: }\\ $\displaystyle\frac{-14}{0+3}$ \end{minipage}}}[/tex]

[tex]\boxed{\\\begin{minipage}{3cm}\xrightarrow{slope\:of\:line\::}$-\displaystyle\frac{14}{3}$ \\ \end{minipage}}[/tex]

[tex]\texttt{F}\textbf{I}\textsf{N}\pmb{A}\rm{L}\:\textsf{A}\textbf{N}\texttt{S}\rm{W}\sf{E}\mathbb{R}\::[/tex]

[tex]\text{$-\displaystyle\frac{14}{3} $}[/tex]

[tex]\small{\textsc{hope\:helpful~}[/tex]

What is the volume of a cone with a radius of 3 and a height of 16

Answers

150.7964474 the formal is pi x r2 x height over 3

Pierre asks Sherry a question involving the theoretical probability of a compound event in which you flip a coin and draw a marble from a bag of marble. The bag of marbles contains 3 white marbles, 8 green marbles, and 9 black marbles. Sherry’s answer, which is correct, is __ 12/40. What was Pierre’s question?

Answers

Pierre's question : What is the probablity of flipping a head and picking a white or black marble at the same time?

The probability of flipping a head is 50%, or 1/2
The probably of randomly picking a white or black marble is (3+9)/(3+9+8) = 12/20.

So, the probability of they happening simultaneously is 1/2 x 12/20 = 12/40.

The diameter of the Earth is 12,756 km,What is the volume of it?

Answers

1,083,206,916,846 cubic kilometers

50 POINTS!!
The Box-and-Whisker Plot below shows the distribution of scores on a weekly physics test. What is the median of this data set?



A. 80
B. 87
C. 70
D. 97

Answers

Using the box-and-whisker plot, it is found that the median of the data-set is given by:

B. 87.

What does a box and whisker plot shows?

A box and whisker plot shows three things:

The 25th percentile, which is the median of the bottom 50%.The median.The 75th percentile, which is the median of the upper 50%.

In this plot, we have that:

The first percentile is of 80.The median is of 87.The third percentile is of 97.

Hence option B is correct.

More can be learned about box-and-whisker plots at https://brainly.com/question/27743205

#SPJ1

Answer:

B) 87

Step-by-step explanation:

Hope it helps!

PLEASE HELP!!!!
ILL GIVE BRAINLIEST

Answers

Answer:

1,3

Step-by-step explanation:

I'm not too sure but 1and 3 look more like they are possible answers

5. Paris wants to leave a message on 8 of her
friends' social networking sites. In how
many ways can she leave a message on
her friends' sites?

Answers

Answer:

infinite because she can write as mutcha nd on as many asshe wats

Consider the quadratic inequality, x^2 - 3x < 10. When you solve the inequality the solution is -2

Answers

Answer:

−2<x<5

Step-by-step explanation:

x2−3x=10

x2−3x−10=10−10(Subtract 10 from both sides)

x2−3x−10=0

(x+2)(x−5)=0(Factor left side of equation)

x+2=0 or x−5=0(Set factors equal to 0)

x=−2 or x=5

Check values in the intervals to see if they work.

x<−2(Doesn't work in original inequality)

−2<x<5(Works in original inequality)

x>5(Doesn't work in original inequality)

So, the proper answer for me is −2<x<5.

Gianna is making two different salads. One calls for 3 3/4 cups chopped spinach. The other calls for 2 2/3 cups chopped spinach. How much spinach dose Gianna Need?

Answers

The answer is very simple add the whole numbers then find the LCM of 3 and 4 which is 12 then multiply 3/4 by 3 which will be 9/12 then multiply 2/3 by 4 which will be 9/12 then we add 9/12 + 8/12 which will equal to 5 17/12 which we can reduce and answer will be 6 5/12 spinach.

Natalia paid $38.95 for three medium-sized pizzas and a salad. if Natalia paid $11.98 for the salad, which equation can be used to find how much did each pizza cost?
A. 3m + $11.98 = $38.95
B. 4m + $11.98 = $38.95
C. 3m + $38.95 = $11.98
D. none of these
PLEASE HELP!!

Answers

Answer:

A

Step-by-step explanation:

$38.95 for 3 m size pizzas and a salad

38.95 = 3m + 11.98

Answer:

3m+$11.98=$38.95

Step-by-step explanation:

$11.98=one salad ,

3m=The price of three medium-sized pizza &

$38.95=The price of three medium-sized pizza & a salad

Which is more 2 kilo or 2,050 grams (Pls help me!)

Answers

grams would be more because each kilo is 1000 grams leaving 50 more grams than 2 kilos.

Answer:

2,050 grams because

2 Kilo = 2,000 Grams

Step-by-step explanation:

PLSSS HELP IF YOU TURLY KNOW THISS

Answers

The correct answer is C, Muy…

“Estoy muy cansado hoy”

Can I have brainliest pls :)

Find the value of x in the parallelogram below

Answers

Answer:

102° is the value of x

Step-by-step explanation:

A = 78°

B = x

C = 78°

D = x

All angles of parallelogram = 360°

→ A + B + C + D = 360°

→ 78° + x + 78° + x = 360°

→ 156 °+ 2x = 360°

→ 2x = 360° - 156°

→ x = 204/2

→ [ x = 102° ]

Hence, the value of x is 102°.

The table here shows the mass of four objects in the solar system. how many times as massive as n is j?



a. 25

b. 23

c. 20

d. 19

Answers

The answer to the question would be A

Landon draws a quadrilateral that is not a rhombus. which features could her quadrilateral have?

choose each correct answer. 4 sides

4 square corners

sides that are all the same length

2 sets of opposite sides that are the same length

sides that are all different lengths

Answers

sides that are all the same length

answer this please!!

Answers

Answer:

5

Step-by-step explanation:

first 5 seconds the height keeps increasing

2/3 of a class are girls.
A) what is the ratio girls to boys in the class?
B) what is the ratio boys to girls in the class

Answers

not sure if a bit of the question is missing but.
a) 2:1
b) 1:2
Answers:

Ratio of girls to boys is 2:1

Ratio of boys to girls is 1:2

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

Explanation:

2/3 of the class are girls. If the class had 3 people, then 2 of them are girls. The remaining 3-2 = 1 person is a boy.

The ratio of girls to boys has us list the number of girls (2) followed by the number of boys (1). Separate the values with a colon. That's how we end up with 2:1

The ratio of boys to girls will have us flip that previous ratio to get 1:2

The order is important when it comes to forming ratios.

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