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
liberstina [14]
2 years ago
9

Complete A,B for 2,3 for 12 points

Mathematics
2 answers:
Gnesinka [82]2 years ago
5 0

See Explanation

Step-by-step explanation:

1)

d = r. t\implies r = \frac{d}{t} \\d = r. t\implies t = \frac{d}{r} \\

2).

C = 2\pi.r\implies r = \frac{C}{2\pi} \\C = 2\pi.r\implies \pi = \frac{C}{2r} \\

fiasKO [112]2 years ago
5 0

Answer:

2.

A. r=d/t

B. t=d/s(r)

3.

A. r=c/2(pi)

B. (pi)=c/2r

Step-by-step explanation:

Pretty easy once you have mastered Algebra and Geometry.

You might be interested in
Can someone please answer this for me it's for a homework assignment.
Ulleksa [173]
Slope as an (improper fraction)-9/7, it can’t be simplified
5 0
3 years ago
The area of a rectangle in 24 square units. A diagonal drawn from one corner to another divides the rectangle into two right tri
mamaluj [8]

Answer:

12

Step-by-step explanation:

24/2=12

the triangles are congruent

3 0
3 years ago
Question 20 need an answerw
max2010maxim [7]
Which one is question 20??
8 0
3 years ago
How many lb of brand X sugar which
Dafna1 [17]

Answer:  <u>4 pounds</u> of brand X sugar

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

Reason:

n = number of pounds of brand X sugar

5n = cost of buying those n pounds, at $5 per pound

Brand Y costs $2 per pound, and you buy 8 lbs of it, so that's another 2*8 = 16 dollars.

5n+16 = total cost of brand X and brand Y combined

n+8 = total amount of sugar bought, in pounds

3(n+8) = total cost because we buy n+8 pounds at $3 per pound

The 5n+16 and 3(n+8) represent the same total cost.

Set them equal to each other. Solve for n.

5n+16 = 3(n+8)

5n+16 = 3n+24

5n-3n = 24-16

2n = 8

n = 8/2

n = 4 pounds of brand X sugar are needed

-------------

Check:

n = 4

5n = 5*4 = 20 dollars spent on brand X alone

16 dollars spent on brand Y mentioned earlier

20+16 = 36 dollars spent total

n+8 = 4+8 = 12 pounds of both types of sugar brands combined

3*12 = 36 dollars spent on both types of sugar brands

The answer is confirmed.

--------------

Another way to verify:

5n+16 = 3(n+8)

5*4+16 = 3(4+8)

20+16 = 3(12)

36 = 36

6 0
2 years ago
The sides of two cubes are in the ratio 2:1. What is the ratio of their volumes ?
olasank [31]

Please mark as brainliest

Answer:

we know that, Volume of cube=a³

Let volume of 1st cube be 2x with side a and other be x with side A (according to given ratio)

Step-by-step explanation:

ATQ: 2x=a³ and, x=A³

a=³√2x and, A=x

we know that, surface area of cube is 6a²

Thus, surface area of 1st cube = 6(³√2x)²

= 6³√4x²

Surface area of 2nd cube=6(x)²=6x²

Ratio of S.A=(6³√4x²)÷(6x²)

Ratio of S.A=³√4:1

<em><u>Please mark as brainliest</u></em>

Have a great day, be safe and healthy

Thank u  

XD

5 0
2 years ago
Other questions:
  • Last weekend, Lena worked 7.5 hours on Friday, 9.75 hours on Saturday, and 6.25 hours on Sunday.
    10·2 answers
  • brian spent 18$ on sticky notes and envelopes. each pack of sticky notes costs 3$ .a pack of envelopes costs 6$ if he buys an eq
    14·2 answers
  • How to solve designed by Sarah Marriott math problems
    10·1 answer
  • Please help 10x+8 =12x-18
    7·2 answers
  • Find the sum: <br> -21 + (-13) + (-9). <br> A. -43 <br> B. -25 <br> C. 1 <br> D. 4
    8·2 answers
  • A venue plans to host trucking events regularly throughout the year. The expected revenue from each event is $100,000. The cost
    15·1 answer
  • Pls help out with this question
    6·1 answer
  • 3(2-3+4) <br><br>math problem help me to slove​
    12·2 answers
  • Can someone please help me with this
    13·1 answer
  • Find the slope and the equation for 12x+2y=-10 using points (-1,2)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!