1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrey2020 [161]
2 years ago
13

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

Mathematics
1 answer:
Elden [556K]2 years ago
4 0

"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

You might be interested in
How many feet in a rod?<br><br><br><br> 2.5<br><br> 4.5<br><br> 8.5<br><br> 16.5
Juli2301 [7.4K]
1 rod is equal to 16.5 feet
6 0
3 years ago
A bicycle manufacturing company makes a particular type of bike. Each child bike requires 4 hours to build and 4 hours to test.
marta [7]
The answer is A
there is not enough hours to build everything and A has the right equation
8 0
3 years ago
Read 2 more answers
Which of the following numbers are NOT rational?<br> A)√25<br> B)18.9238...<br> C)1.323232...
Elena-2011 [213]

Answer:

the answer is a because it has no decimal

it is in square root

4 0
3 years ago
Pre-Calculus Help? Polar and Parametric Equations?
Paraphin [41]
\bf x=rcos(\theta )\implies \cfrac{x}{cos(\theta )}=r\\\\&#10;y=rsin(\theta )\implies \cfrac{y}{sin(\theta )}=r&#10;\\\\&#10;-------------------------------\\\\&#10;r=3cos(\theta )\implies \cfrac{x}{cos(\theta )}=3cos(\theta )\implies x=3cos(\theta )cos(\theta )&#10;\\\\\\&#10;\boxed{x=3cos^2(\theta )}&#10;\\\\\\&#10;r=3cos(\theta )\implies \cfrac{y}{sin(\theta )}=3cos(\theta )\implies \boxed{y=3cos(\theta )sin(\theta )}
7 0
3 years ago
How many lines of symmetry does a rhombus that is not a square have?
adoni [48]
Look ar the picture.

Your answer: 2 lines of symmetry.

7 0
3 years ago
Other questions:
  • How many pairs of parallel sides does the trapezoid below have
    7·1 answer
  • Plot the image of point C under a dilation about the origin (0,0) with a scale factor of 1/5
    10·1 answer
  • Write an equation for the data. x y 0 0 2 –4 4 –8 6 –12 A. y = 2x – 2 B. y = 2x C. y = –2x D. y = x + 2
    12·1 answer
  • A common assumption in modeling drug assimilation is that the blood volume in a person is a single compartment that behaves like
    6·1 answer
  • A man loses 20 percent by selling an article for 11. What was the cost price of the article
    7·1 answer
  • Which of the following is the greatest absolute value?<br> A.0<br> B.7<br> C.-10<br> D.1
    6·1 answer
  • What is the simplified form of the quantity of x plus 5, all over 2 + the quantity of x plus 6, all over 2?
    15·1 answer
  • A gumball has a diameter that is 66 mm. The diameter of the gumball's spherical hollow core is 58 mm. What is the volume of the
    15·1 answer
  • Find the height of a trapezoid given that it has an area of 650
    10·2 answers
  • A can contains 40 fluid Ounces of fruit juice. How many pints of fruit juice
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!