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
Dmitrij [34]
2 years ago
11

90 students take a test.

Mathematics
1 answer:
Anika [276]2 years ago
5 0

Answer:

Step-by-step explanation:

If there are 90 students and the ratio of boys to girls is 3:2, that means 3x+2x=90

Combine like terms: 5x=90

x=18

2x (girls)=36

3x (boys)=54

1/3 of the boys scored full marks, so 54/3=18 boys scored full marks

The number of girls who scored full marks is half of the number who did not score full marks means that 1/3 of the girls scored full marks. 36/3=12, so 12 girls scored full marks.

(I don't know what the question is sorry if it's incorrect but there's not enough information)

Hope this helps!

You might be interested in
There are 4 generations. Daughter, mother, grandma, and great-grandma. The daughter is 44 less than the grandma's age. The great
Snezhnost [94]

Answer:

Age of Grandma = 59 years.

Age of great Grandma = 81 years

Ages of Mother = 38 years

Age of Daughter = 15 years

Step-by-step explanation:

Given:

Total years they all lived = 193

We need to find the ages of all lady.

Solution:

Let the age of grandma be 'x'.

Now Given:

The daughter is 44 less than the grandma's age.

So we can say that;

Age of the Daughter = x-44

The great-grandma is 22 more than the grandma's age.

So we can say that;

Age of the great grandma  = x+22

The mother is 80 less than twice the grandma's age.

So we can say that;

Age of the mother  = 2x-80

Now we can say that;

Total years they all lived  is equal to sum of age of grandma, Age of the Daughter, Age of the great grandma, Age of the mother.

framing in equation form we get;

x+x-44+x+22+2x-80=193\\\\5x-102=193

Adding both side by 102 we get;

5x-102+102=193+102\\\\5x= 295

Dividing both side by 5 we get;

\frac{5x}{5}=\frac{295}{5}\\\\x= 59\ years

Hence Age of Grandma = 59 years.

Age of great Grandma = x+22 =59+22 = 81\ years

Ages of Mother = 2x-80= 2\times 59-80 = 38\ years

Age of Daughter = x-44=59-44=15\ years

7 0
3 years ago
A package has 5 erasers number of packages 6 total number of erasers
iren [92.7K]
There is a total of 30 erasers
6 0
3 years ago
Read 2 more answers
Find the slope of the line that goes through the given points<br> (-2,5), (6,5)
kicyunya [14]

Answer:

0

Step-by-step explanation:

slope = y2 - y1 / x2 - x1

(-2,5) (6,5)

5-5/-2-6

0 / -8

slope is 0

4 0
2 years ago
Jordan wants to measure a length of fabric, but the only tape measure she has is damaged. The first number on her tape measure i
Alex
Djdjxkdjdkdkdjddjdjdj yuppppppppp 37387(5y6666+4)WEI
7 0
2 years ago
Solve the system using elimination.
riadik2000 [5.3K]
1.)  6x=12
x=2
3(2)+3y=-9
6+3y=-9
3y=-3
y=-1
(2,-1)

2.) 7x=-35
x=-5
5x+2y=-19
5(-5)+2y=-19
-25+2y=-19
2y=-44
y=-22
(-5,-22)

3.) 4x=-16
x=-4
2(-4) +3y=1
-8+3y=1
3y=-7
y=-7/3
(-4,7/3)

4.)7x=35
x=5
2(5)+3y=-5
10+3y=-5
3y=5
y=5/3
(5,5/3)

5.) 2x=-8
x=-4

x+4y=4
-4+4y=4
4y=0
y=1
(-4,1)


7 0
3 years ago
Other questions:
  • What is the domain of F(x) = 2+3^x
    14·1 answer
  • What's a consecutive side
    11·1 answer
  • Find the common ratio an=4n-2
    13·1 answer
  • Can some one help me with this question its hard :( down below ill give brainliest
    7·1 answer
  • Which of the following functions is graphed below?
    11·1 answer
  • Some biologists believe the evolution of handedness is linked to complex behaviors such as tool-use. Under this theory, handedne
    6·1 answer
  • please help, this is an algebra 2 question :) I attached the problem in a photo - simplify the following expression
    8·1 answer
  • Help me pls <br> need helppppppp
    11·2 answers
  • PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS HELP ASAP THANKS
    8·2 answers
  • Which quadratic equation is equivalent to (x-4)2-(x-4) - 6 = 0?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!