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
OLEGan [10]
1 year ago
9

In a school of 910 pupils, 3/7 are boys and 2/5 of the boys wear glasses. how many boys wear glasses?

Mathematics
1 answer:
Wittaler [7]1 year ago
6 0

The number of boys wear glasses are 156 boys.

In this question,

Total number of pupils in the school = 910

Ratio of boys = 3/7

Then, number of boys = 910 × 3/7

⇒ 130 × 3

⇒ 390

Ratio of boys wear glasses = 2/5

Then, number of boys wear glasses = 390 × 2/5

⇒ 78 × 2

⇒ 156

Hence we can conclude that the number of boys wear glasses are 156 boys.

Learn more about word problem here

brainly.com/question/20840435

#SPJ4

You might be interested in
Area of a triangle is given by the formula A=1/2bh. The area of the triangle shown to the right is 56sq. units. Find its base an
Hunter-Best [27]
The area A of a triangle with base b and height h is given by A=1/2bh,find the area when b=28m(meters) and h=38m. The area is m
6 0
3 years ago
Rewrite the expression with parentheses to equal the given value 3 x 4 - 1 + 2
sergejj [24]

Answer:

the difference of the product of 3x and 4 and of the sum of -1 and 2

6 0
3 years ago
Read 2 more answers
What is |–14|<br>A. 1/14<br>B. -7<br>C. -14 <br>D. 7<br>E. 14​
expeople1 [14]

Answer:

14

Step-by-step explanation:

absolute value works where it doesnt matter if the number is positive or negative. the absolute value is the number positive. an absolute value can not be negative.

5 0
3 years ago
Messages arrive to a computer server according to a Poisson distribution with a mean rate of 11 per hour. Determine the length o
Zarrin [17]

Answer:

The length of the interval during which no messages arrive is 90 seconds long.

Step-by-step explanation:

Let <em>X</em> = number of messages arriving on a computer server in an hour.

The mean rate of the arrival of messages is, <em>λ</em> = 11/ hour.

The random variable <em>X</em> follows a Poisson distribution with parameter <em>λ</em> = 11.

The probability mass function of <em>X</em> is:

P(X=x)=\frac{e^{-11}11^{x}}{x!};\ x=0,1,2,3....

It is provided that in <em>t</em> hours the probability of receiving 0 messages is,

P (X = 0) = 0.76

Compute the value of <em>t</em> as follows:

P(X=0)=\frac{e^{-11\times t}(11\times t)^{0}}{0!}\\0.76=e^{-11\times t}\\\ln(0.76)=-11\times t\\t=-\frac{\ln(0.76)}{11} \\=0.025\ hours\\\approx90\ seconds

Thus, the length of the interval during which no messages arrive is 90 seconds long.

6 0
3 years ago
When there is a coefficient with a<br> fraction, you should...
Katarina [22]

Answer:

divide each term in the equation by the coefficient or multiply each term by the reciprocal of the coefficient

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • The 24 students in Mr. Brown's homeroom sold 72 magazine subscriptions. The 28 students in Mrs. Garcia's homeroom sold 98 magazi
    7·1 answer
  • Help Asap! 20 Points What is value of x and y?
    13·1 answer
  • Can someone answer this question please?
    14·1 answer
  • At Prairie Middle School, 120 of the 450 students ride their bikes to school each day. Which fraction represents the ratio of st
    12·1 answer
  • Write three thousand, seven hundred nineteen and eleven hundredths in standard notation.
    11·1 answer
  • Enter the value of the exponential expression 5 0 .
    10·1 answer
  • Can someone PLEASE help me with THIS QUESTION
    14·1 answer
  • It's ya girl
    13·2 answers
  • Help !!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • Can someone help me with this? ( solving angle measures)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!