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
aniked [119]
3 years ago
13

Joseph, después de hacer compras, piensa de la siguiente forma: "Gasté los 3/5 de lo que no gasté y aún me quedan S/. 60 más de

lo que gasté". ¿Cuántos soles tenía Joseph?
Mathematics
1 answer:
earnstyle [38]3 years ago
7 0

Answer:

Joseph tenía 240 soles

Step-by-step explanation:

Tenemos lo siguiente

Cantidad total = Cantidad gastada + Cantidad restante.

Sabemos que Cantidad gastada = 3/5 Cantidad restante y que Cantidad restante = Cantidad gastada + 60.

Sea x la cantidad gastada e y la cantidad restante. Tenemos las ecuaciones

x = \frac{3}{5}y, y = x+60

Reemplazando la segunda en la primera, tenemos que

x = \frac{3}{5}(x+60)= \frac{3}{5}x + 36 (aquí simplemente distribuímos la multiplicación.

Restando 3/5 x a ambos lados, tenemos que

x-\frac{3}{5}x = \frac{2}{5}x = 36

Multiplicando por 5 y dividiendo por dos ambos lados, tenemos que

x=\frac{5\cdot 36}{2} = 90

Es decir, Joseph gastó 90 soles. Entonces y = 90+60 = 150 soles.

Es decir, en total, Joseph tenía 150+90= 240 soles.

You might be interested in
HELPPPPP I DONT KNOW THIS
blsea [12.9K]
C
20% increase

$50 + 20% = $60
8 0
3 years ago
Read 2 more answers
Which angles are corresponding angles?
Katena32 [7]
Corresponding angles are defined as angles that are on the same side of the  transversal (given the lines are parallel, which they are) and are on the same side of the parallel lines. Choices D, E, and F are angles on the same side of the transversal and on the same side of the parallel lines.

:)

5 0
3 years ago
Read 2 more answers
A shoe store has a pair of shoes that originally cost eighty dollars. Match the expression to find each markup or discount by dr
irina1246 [14]

Step-by-step explanation:

always remember some basic principles when dealing with percentages :

100% is the whole

1% = 100%/100

n% = n×1% = n×100%/100

therefore, n% of an amount m is n/100 × m.

like 25% = 25/100 × m = 0.25 × m

so, now it should be very easy :

the 25% discount of $80 is

0.25×80

the amount deducted by (= after) the discount is

80 - 0.25×80

which is actually 0.75×80

a markup is added into the total cost incurred by the producer of a good or service in order to cover the costs of doing business and create a profit. so, a markup of 40% is simply again

0.40×80

and the sale price including (= after) the markup is then

80 + 0.40×80

3 0
2 years ago
Suppose f−1 is the inverse of a differentiable function f and f(4) = 0, f′(4) = 1. find (f−1)′(0).
Vlada [557]
Give me a heart and I'll tell you the answer
4 0
3 years ago
What’s is the positive solution ?
Fofino [41]

Answer: x=(6+√196)/4, (6-√196)/4

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • The graph shows the number of patients seen by a doctor on Tuesday.
    14·1 answer
  • A warehouse distributor of carpet faces a normally distributed demand for its carpet. The average demand for carpet from the sto
    10·1 answer
  • PLEASE HELP ASAP!!!!!<br><br>The graph below shows the solution set to which inequality?
    15·1 answer
  • A3 ounce serving of tuna provides 21 grams of protein. Use equivalent ratios to find how many grams of protein are in 9 ounces o
    14·2 answers
  • Please help me ASAP 100 PTS
    9·2 answers
  • Evaluate the following using<br> powers of ten rules.<br> 104)1.042
    9·1 answer
  • Brewed decaffeinated coffee contains some caffeine. We want to estimate the amount of caffeine in 8 ounce cups of decaf coffee a
    9·1 answer
  • Order from least to greatest 3.2 ,3.14, 19/7, sqrt (14)
    11·1 answer
  • How do you convert 6x + 19y = 19 into slope intercept form?
    11·2 answers
  • What extra number must be included with the following list of numbers to increase the median by 1?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!