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
kozerog [31]
2 years ago
15

There are 120 students in Year 11 at a school.

Mathematics
1 answer:
kompoz [17]2 years ago
3 0

Answer:

80 students are female

Step-by-step explanation:

21 are male meaning 19 are female

9 are female in French

12 are female in Spanish

total = 40

2x + 40 = 120

2x = 80

x = 40

females'  = 80

total = 80

You might be interested in
Solve the following system of equations.
murzikaleks [220]

Answer:

1. x=0 y=-20

2. x=0 y=7.5

Step-by-step explanation:

7 0
3 years ago
Find the area of a square whose diagonal length is 32 CM​
BigorU [14]

Answer:

512cm^2

Step-by-step explanation:

Let's imagine cutting the square down that diagonal. Now, we have two isosceles right triangles with a hypotenuse with length 32cm. Let's take one of those triangles for now and focus on it. Let's give the one of the legs of a triangle some length x. Since both legs are the same length, by the Pythagorean theorem:

x^2+x^2=32^2\\\\2x^2=1024\\\\x^2=512\\\\x=\sqrt{512}

Since this leg makes up one side of the square, we can use it to calculate the area of the square, which is just the side length squared:

A=(\sqrt{512})^2 = 512

7 0
3 years ago
Giovanni justifies whether the expression -4x-8 is equivalent to -2(x+1)-2(x+3) by letting x=3 in both expressions. What is the
Lorico [155]

Answer:

The value of each expression when x=3 will be -20 and -20.

Step-by-step explanation:

Given the expression

-4x-8

setting x=3

= -4(3)-8

=-12-8

=-20

Given the expression

-2(x+1)-2(x+3)

setting x=3

=-2(3+1)-2(3+3)

=-2(4)-2(6)

=-8-12

=-20

so we conclude that the value of both the expressions was -20 when we substituted the value x=3.

Therefore, the value of each expression when x=3 will be -20 and -20.

3 0
3 years ago
the smallest angle in a triangle is one-third of the largest angle. the third angle is 10degrees more than the smallest angle. f
Alex787 [66]
A: smallest 
c: largest
b: third 
a+b+c=180
a=c/3
b=10+a
solve it
a=34
b=44
c=102
5 0
3 years ago
The profit P after the first month of operation for a new departmental store is $10,605. The profit of the departmental store af
devlian [24]

Answer:

p = 11145.96

Step-by-step explanation:

If x is an exponent and 1.01 its base then we are looking at a case of compound increments and the profit can be said to be earning compound interest at a rate of 1%. The  profit of the store after 6 months is found by simply substituting x with 6 in the equation of p; p = 10500(1.01)^6

5 0
3 years ago
Other questions:
  • How to find the final price of a 120$ pair of shoes discounted by 20% and the by 5%
    12·1 answer
  • What is the solution to the system of equations?<br> -2x + 3y = 13<br> 3x + 4y = 6
    7·2 answers
  • I need help with finding the missing angle measures
    9·2 answers
  • Jason solved the following equation to find the value for x. –8.5x – 3.5x = –78 x = 6.5 Describe how Jason can check his answer.
    10·2 answers
  • If 1/2 gallon of paints cover 1/4 of a wall,then how much paint is needed to cover the entire wall?
    5·1 answer
  • Identify the rule (or formula) that generates the nth term of a Geometric Sequence from the choices below. A(n) is the nth term
    15·1 answer
  • Use substitution to show that 9+6(10-7x) is equivalent to 69-42x.
    13·1 answer
  • PLZZ HELP??!!! what is it equivalent to???!!!
    7·2 answers
  • Sl7t daddy 686868688686868680r34u434-9
    15·2 answers
  • Write an expression using an exponent to represent the following: Adnan Start with one coin. the number of coins doubles every d
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!