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
Annette [7]
3 years ago
12

There are 870 boys and 800 girls in a school

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

Answer:

1060

Step-by-step explanation:

Given:

No. of boys = 870

No. of girls = 800

Probability that a boy chosen studies Spanish = \dfrac{2}{3}

Probability that a girl chosen studies Spanish = \dfrac{3}{5}

the number of boys in the school who study Spanish :

\dfrac{2}{3}\times 870=290\times 2=580

the number of girls in the school who study Spanish :

\dfrac{3}{5}\times 800 \\=3\times 160\\\\=480

Therefore, total number of students who study Spanish would be :

480+580=1060

You might be interested in
Help me plsss!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
MaRussiya [10]

Answer:

C.Infinitely many solutions

I solved by substitution

2x+3y=12\\-3y-3y\\2x=-3y+12\\\frac{2x=-3y+12}{2} \\x=-\frac{3}{2} y+6-6y=4x-24\\-6y=4(-\frac{3}{2}  y+6)-24\\-6y=-6y\\-6y+6y=-6y+6y\\0=0\\Infinitely many solutions

8 0
3 years ago
Read 2 more answers
88.83 is what percent of 21
Serjik [45]

88.83 / 21  =  4.23

4.23  is the same number as  423% .

8.23  is  <em>423%</em>  of  21.
6 0
3 years ago
Read 2 more answers
Indicate the answer choice that best completes the statemento<br> Dr What is the value of |-6|?
sleet_krkn [62]
6 absolute value is 6
4 0
3 years ago
Convert 6 kilometers to yards
NISA [10]
1 km=1093.61yards

6 km= 6*1093.61yards
6 km= 6561.66yards

Answer= 6561.66 yards
7 0
3 years ago
Superman needs to save Lois from the clutches of Lex Luthor. After flying for 6 seconds, he is 2430 meters from her. Then at 12
gayaneshka [121]

Answer:

2700.

Step-by-step explanation:

The total distance would be 2700.

Distance traveled between in 6th second and 12th second is 2430-2160=270 meter. That means Superman covered 270 meter in 6 seconds.

So, now if he is moving at the same speed, he should cover the same distance in first 6 seconds which is 270 meter.

Suppose the whole distance is X when time is 0, and after flying for 6 seconds he now is 2430 meter away. It means that he must have covered the distance of X-2430=270.

Finding for X, we gets the full initial distance, when time was 0.

The simple trick is, once we get the distance he has covered in 6 seconds, we can form the equation like subtracting the whole distance- remaining distance equals to covered distance.

8 0
3 years ago
Other questions:
  • a trapezoid has an area of 30 in2. if the lengths of the bases are 4.8 in and 5.2 in, what is the height?
    8·1 answer
  • (GEOMETRY PLS HELP) Is rectangle EFGH the result of a dilation of rectangle ABCD with a center of dilation at the origin? Why or
    13·2 answers
  • Write 0.0000000642 in scientific notation.
    7·1 answer
  • What is the measure of angle D?<br><br> 52<br> 54<br> 57<br> 126
    13·2 answers
  • Jonas draws a triangle, measures its three angles, and adds the measures together. He draws several more triangles and does the
    8·1 answer
  • Which is equivalent to 3 sqrt of 8​
    5·1 answer
  • Anchorage: -16 Fº<br> or<br> Richmond: 46 Fº
    7·1 answer
  • Answer for 2y + 4/x = 10
    12·2 answers
  • I will make u brainlest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • ....................
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!