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
mars1129 [50]
2 years ago
6

Assume that y varies directly as x then solve. If x = 12 when y = 15 find x when y = 21.

Mathematics
2 answers:
Viefleur [7K]2 years ago
7 0

Answer:

18

Step-by-step explanation:

12 and 15 are both dividable by 3 and 3 apart so if you subtract 21 by 3 than you get 18

SVETLANKA909090 [29]2 years ago
5 0

Answer:

18 or 16.8

Step-by-step explanation:

if x=12 and y=15, this can be written as y=x+3 or y=1.25x

so  your equation becomes x+3=21 or 1.25x=21

subtract 3 from both sides, or divide by 1.25

and you get x=18 or x=16.8

You might be interested in
10 1/2 divided by 3/8
gladu [14]
(10 1/2)/(3/8)
= (21/2)/(3/8) Convert to improper
= (21/2)*(8/3) Multiply by reciprocal of second
=(7/1)*(4/1) Cross reduce
=28 Multiply
5 0
3 years ago
Rahima goes jogging on a course that is 2.75kilometers long. If she completes the full course every morning, how many kilometers
Arada [10]

Answer:

<h2>19.25km</h2>

Step-by-step explanation:

Step one:

given data

we are told that the distance that Rahima covers on a daily is 2.75km long

we also know that a week has 7 days that is Mon-Sunday

Required

the total distance for a week

Step two:

Hence the total distance covered for  7 days is

=2.75*7

=19.25km

<em>Simply multiply the distance covered in a day by 7 to get the distance covered in a week </em>

6 0
3 years ago
Read 2 more answers
Which lengh can be rounded up to the nearest tenth of an inch a. 66.61 b. 5.055 c.4.91 or d. 6.5
Nesterboy [21]
<span>In the given choices, everything can be rounded into nearest tenths.
a. 66.61 – It can be rounded into 66.6
b. 5.055 – it can be rounded into 5.1
c. 4.91 – it can be rounded into 4.9
d. 6.5 – it stays as is.
So everything can be rounded into nearest tenths, however, Letter b. 5.055 is the only one who were rounded up because the number next to tenths value is 5, so the rules of rounding must be followed

</span>



8 0
3 years ago
Solve for x. " fx+g=h"
kkurt [141]
I hope this helps you

3 0
3 years ago
The factored form of 25p29 10 – 169?
Yanka [14]

Answer:

I'm guessing you are trying to say this is 25p29=10-169 If not let me know in comments and I'll change it! But here is the answer: 72750<em>p</em><em>-</em><em>1</em><em>6</em><em>9</em>

<em>Expla</em><em>ined</em><em>:</em>

25p*29=10 – 169

solve=

72750p-169

Hope this helps! If so please mark brainliest and rate/heart if it did!

8 0
3 years ago
Other questions:
  • Solve the inequality-7x&gt;21.what is the graph of the solution?
    5·1 answer
  • What are the positive and negative square roots of 169?????
    9·2 answers
  • How to write four hundred two million seventy-three thousand one hundred eighty in standard form
    11·2 answers
  • During the summer, Tyler delivers packages and Miranda cares for animals on a farm. To show their earnings, Tyler makes a graph
    7·1 answer
  • Given the following geometric sequence find the common ratio {0.45, 0.9, 1.8}
    9·1 answer
  • Find the equation of the line, where P is a point on the graph of the line. m=2/3 , P(3,5)
    11·1 answer
  • Somebody please help me out.
    14·1 answer
  • Grace has $500 in her bank
    6·1 answer
  • Find the missing length Indicated
    15·1 answer
  • So, yeah I wasn't at school.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!