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
gulaghasi [49]
3 years ago
8

Please answer me<br />bis two fifths of c.<br />4a = 30<br />Work out the ratio a:b:c<br />Give your ans

wer in its simplest form where a, b and c are integers.​

Mathematics
1 answer:
irina [24]3 years ago
7 0

b is two fifths of c, so we make this a ratio with c = 1.

The ratio of b:c is 2/5 : 1

We also have 4a = 3c, rewrite this ratio so c is 1 by dividing both sides by 4,

so we get the ratio of a to c as 3/4 : 1

Now we get the a:b:c ratio of 3/4 : 2/5 : 1 now we can change the fractions to whole numbers, first by multiplying the 3 numbers by 4 to get get rid of the denominator of 4 in a:

3 : 8/5 : 4

Now multiply the 3 numbers by 5 to remove the denominator  of 5 in b:

15 : 8 : 20

Now we can check using the equations:

b is 2/5 of c:  20 x 2/5 = 40/5 = 8 This is true.

4a = 3c: 4(15) = 3(20) = 60 = 60, this is also true.

The ratios is 15 : 8: 20

You might be interested in
Patrick is buying a new pair of shoes. the expression shown below represents the sales tax on the price of the shoes,s.
Murrr4er [49]

Answer:

$=s*1.06  (s+s*.06)

Step-by-step explanation:

You need to multiply be the cost of the shoes (1*s) and the cost of tax (.06) which is the same as multiplying by 1.06

7 0
3 years ago
Gianna drove 176 miles in 8 hours. On average, how fast did she drive in miles per hour? Express your answer in simplest form.
vesna_86 [32]

Answer:

22

Step-by-step explanation:

178 divide by 8   = 22

4 0
3 years ago
2 Which of the following polynomials is not written in standard form?
Varvara68 [4.7K]

Answer:

3

Step-by-step explanation:

Standard form is written in the order of the exponent <em>on</em><em> </em><em>a</em><em> </em><em>variable</em> from highest to lowest.

#1 exponents go 2, 1 , then zero. So, this is standard form.

#2 exponents go 2 then zero, so this is standard form.

#3 exponents go 1 then 2 then zero, so this is <em><u>not</u></em> in standard form.

#4 exponents go 3 to 2 to 1, so this is still in standard form.

hope this helps!

8 0
3 years ago
Which table represents a function?
Nata [24]

Answer:

The one on the top left

Step-by-step explanation:

What makes a function, a function is that the x coordinate (x,y), cannot be repeated in the tables. The y coordinate can though.

3 0
2 years ago
Mariah build a tabletop using square tiles there are 12 rows of tiles and 30 tiles in each row how many tiles does Maria use
Stells [14]

30 \times 12 = 360
360 because 30×12=360 so it would be 360 b
6 0
3 years ago
Other questions:
  • If AB=x+4, BC=2x-10, and AC =2x+1, then find the value for x, AB, BC and AC
    11·1 answer
  • What is the value of x
    13·1 answer
  • Identify a3 of this sequence: 0.25, 0.5, 0.75, 1, 1.25, 1.5, … a3 =
    6·2 answers
  • Graph the line that passes through the given point and has the given slope m!
    11·1 answer
  • Jorge is scheduled to work 36 hours this week. He has already worked 27.25 hours. How much more hours does gorge have to work th
    13·1 answer
  • Please help me on this, thank u
    7·1 answer
  • Using the Rule of 78, determine the fractional amount that will be paid of the total interest due on a 10-month loan in its 8th
    15·1 answer
  • Whats the answer?<br> And step by step?
    13·1 answer
  • Solve the linear system using the method of substitution
    11·1 answer
  • Select the correct choice and fill in the answer box
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!