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
umka21 [38]
3 years ago
13

Anca a citit 375 de pagini dintr-o carte. În fiecare zi, începând cu a doua zi, ea a citit cu 5 pagini mai mult decât în ziua pr

ecedentă, și a terminat de citit cele 375 de pagini în 5 zile. Determinaţi numărul de pagini citite de Anca în prima zi.
Mathematics
1 answer:
prohojiy [21]3 years ago
8 0

Answer:

a=65

Step-by-step explanation:

Avem 375 pagini

Notam cu a numaruide pagini

In prima zi avem-a, poi a doua zi-a+5, a treia-a+10, apatra-a+

15 si a cincea zi avem-a+20

Le adunam si egalam cu 375

5a=50=375

5a=325

a=65

You might be interested in
Find sin(7pie/4) using exact values
rewona [7]
sin( \frac{ 7\pi }{4} )=-sin(2 \pi - \frac{ 7\pi }{4} )=-sin \frac{ \pi }{4} =- \frac{1}{ \sqrt{2} }
3 0
3 years ago
-3x+4y=-4 -2x+5y=9<br>solve the following system of equations
Vesnalui [34]

the answer is x= 8, and y=5

3 0
3 years ago
Read 2 more answers
There are 48 students in a certain class, 25% of this are girls, How many<br> boys are in the class?
miskamm [114]

Answer:

There are 36 boys

Step-by-step explanation:

4 0
2 years ago
What is the measure of Zx?
MA_775_DIABLO [31]

Answer:

x = 139º

Step-by-step explanation:

A line = 180º

180º - 41 º = 139º

3 0
3 years ago
Read 2 more answers
Bill found a book he wanted on sale for $20.80. The original price of the book was $32. Find the discount rate.
Maurinko [17]

Answer:

35% discount

Step-by-step explanation:

We can first find what percent of 32 20.80 is.

This can be shown by using a percent proportion.

\frac{20.80}{32} = \frac{x}{100}

We can cross multiply to find the value of x.

20.80\cdot100=2080\\\\2080\div 32 = 65

So 20.80 is 65% of 32.

However, this is the percent of the original price. To find the discount, we have to subtract 65 from 100.

100 - 65 = 35

So the book was on a 35% discount.

Hope this helped!

3 0
3 years ago
Other questions:
  • What is the equation of this line?
    11·1 answer
  • If x=0,5 the solve 10x
    11·1 answer
  • A sample is representative of a population A) true B) false
    15·2 answers
  • Identify which of the sequences below is a geometric sequence.
    8·2 answers
  • Help!!! 10pts!!
    8·1 answer
  • A bed is on sale for 25% off of its original price. It originally cost $879.00. How much is the sale price of the bed?
    5·2 answers
  • Which ordered pairs are solutions to the equation<br> 2x + 10y = 12?
    14·2 answers
  • What is the geometric interpretation of dividing the b-value by 2 while completing the square?
    10·1 answer
  • Find the total surface area of this cone ​
    5·1 answer
  • Use the arc length formula to find the length of the graph of the function y = x ^ (3/2) + 4 from x = 2 to x = 9 (Express number
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!