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
avanturin [10]
3 years ago
5

Explain how you can find the missing number and 3 4/5 divided by something equals 2 5/7 then find the missing number

Mathematics
1 answer:
enyata [817]3 years ago
5 0

let's firstly, convert the mixed fractions to improper, and then do equation.


\bf \stackrel{mixed}{3\frac{4}{5}}\implies \cfrac{3\cdot 5+4}{5}\implies \stackrel{improper}{\cfrac{19}{5}}
~\hfill
\stackrel{mixed}{2\frac{5}{7}}\implies \cfrac{2\cdot 7+5}{7}\implies \stackrel{improper}{\cfrac{19}{7}}
\\\\[-0.35em]
\rule{34em}{0.25pt}


\bf \cfrac{~~\frac{19}{5}~~}{x}=\cfrac{19}{7}\implies \cfrac{~~\frac{19}{5}~~}{\frac{x}{1}}=\cfrac{19}{7}\implies \cfrac{19}{5}\cdot \cfrac{1}{x}=\cfrac{19}{7}\implies \cfrac{19}{5x}=\cfrac{19}{7}
\\\\\\
\stackrel{}{\cfrac{7}{5x}=\cfrac{19}{19}}\implies \cfrac{7}{5x}=1\implies 7=5x\implies \cfrac{7}{5}=x\implies 1\frac{2}{5}=x

You might be interested in
^lets start off easy☺️^
butalik [34]

Answer:

mary=10 jack=15

Step-by-step explanation:

After 4 years Mary (x+4), Jack's age (x+5) + 4.

sum of the ages after 4 years :(x+4) + (x+5) +4=33 

Simplifying the equation:

2x+13 = 33 ----->> 2x=20----->>>>x = 10 Mary's age

10 + 5 = 15 which is Jack's age. 

7 0
3 years ago
Jovita divides $12,000 into three investments: a savings account paying 4% annual interest, a bond paying 6%, and a money market
xenn [34]

Answer:

$2080 was invested in the savings account, $4241 was invested in the bond account, & $6539 was invested in the money fund.

Step-by-step explanation:

Let a, b, and c be the fractions of the $12,000 that is invested in the savings, bond, & money fund respectively.

Let S1, S2, S3 be the total monies from the savings, bond, & money fund after the year with interest respectively.

We know that a+b+c=1

and

S1+S2+S3 = 12000 + 860

S1+S2+S3 = 12860

From, the question, we know that b = 2a, and c = 1 - 3a based on the condition of 2 times more in the bond account that the savings account.

Thus;

S1 = a(12000)(1.04) = 12480a

S2 = 2a(12000)(1.06) = 25,440a

S3 = (1 - 3a)(12000)(1.09) = 13080 - 39240a

We already know that;

S1+S2+S3 = 12860

Thus, Adding the 3 equations gives;

12480a + 25,440a + 13080 - 39240a = 12860

Thus, simplifying gives;

13080 - 12860 = 39240a - 12480a - 25,440a

220 = 1320a

a = 220/1320

a = 0.1667

So,b = 2 x 0.1667 = 0.3334

c = 1 - (3 x 0.1667)

c = 1 - 0.5

c = 0.5

Thus,

S1 = 12480a = 12480 x 0.1667 ≈ $2080

S2 = 25,440a = 25440 x 0.1667 ≈ $4241

S3 = 13080 - 39240(0.1667) ≈ 6539

So, $2080 was invested in the savings account, $4241 was invested in the bond account, & $6539 was invested in the money fund.

3 0
3 years ago
Read 2 more answers
What is the slope of the line between (0,8) and (2,20)
oksian1 [2.3K]

Answer:-1/6

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
‼️correct answer will get brainliest‼️
sveta [45]
48 qrts * 25 barrels per trip = 1200 qrts get picked up per trip

1200 qrts * 1 hr/7qrts = 171.43 hrs to fill all 25 barrels

171.43 hrs * 1 day/24hrs = 7.14 days
3 0
3 years ago
What is the average rate of change in profit from Hour 5 to Hour 10?
snow_lady [41]

Answer:

d

Step-by-step explanation:

so at 5 hours he  was at a profit of 900 and 5 hours later he is at a profit 1500 then you can sub tract 900 from 1500 which gives you 600

8 0
3 years ago
Other questions:
  • I don't understand what to do because I don't understand the question
    7·1 answer
  • 100 POINTS
    6·2 answers
  • HURRY ILL GIVE YOU BRAINLY ;DD
    11·2 answers
  • Susie has 3 1/5 pounds Of jellybeans. Julie wants to combined his 2 1/3 Pound bag of licorice with Susie's jellybeans. What woul
    8·1 answer
  • Please help me with this
    9·1 answer
  • Help me please! i forgot how do this problem.
    14·1 answer
  • Can someone tell me this one?
    15·2 answers
  • The figure shows two triangles on the coordinate grid:
    13·1 answer
  • Hey bestie, here are some points :)<br> Smile more and stay hydrated fam.
    7·2 answers
  • Samuel has a collection of toy cars. His favorites are the 27 red ones, which make up 60% percent of his collection.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!