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
andrey2020 [161]
2 years ago
6

The ratio of boys to girls in a school is 5:8. If the number

Mathematics
1 answer:
m_a_m_a [10]2 years ago
5 0
624 students
Since they’re only 3 parts more girls then boys and the number equals 144, you just have to divide 144 by 3. You’ll get 48
Multiply 5 and 8 by 48 to get 240 and 384 and add to get 624 which is the answer
You might be interested in
Please HELP ME ON THIS MATH WRITTEN RESPONSE QUESTION.. THANK YOU
sergij07 [2.7K]

Answer:

Quadrilateral ABCD is not a square. The product of slopes of its diagonals is not -1.

Step-by-step explanation:

Point A is (-4,6)

Point B is (-12,-12)

Point C is (6,-18)

Point D is (13,-1)

Given that the diagonals of a square are perpendicular to each other;

We know that the product of slopes of two perpendicular lines is -1.

So, slope(m) of AC × slope(m) of BD should be equal to -1.

Slope of AC = (Change in y-axis) ÷ (Change in x-axis) = (-18 - 6) ÷ (6 - -4) = -24/10 = -2.4

Slope of BD = (Change in y-axis) ÷ (Change in x-axis) = (-1 - -12) ÷ (13 - -12) = 11/25 = 0.44

The product of slope of AC and slope of BD = -2.4 × 0.44 = -1.056

Since the product of slope of AC and slope of BD is not -1 hence AC is not perpendicular to BD thus quadrilateral ABCD is not a square.

4 0
3 years ago
You need to buy 5 notebooks for your classes at school. Each notebook costs $2.79. What is the total costs of 5 notebooks Before
aev [14]

multiply 2.79 x 5

2.79*5 = 13.95 before tax

3 0
3 years ago
Find the value of 40% of 1KM (in m)​
labwork [276]

40% of 1 km in meters is 400 meters

<h3>What is percentage :</h3>

Percentage simply means per 100. Percentage can be express as decimal or fraction.

For example 25% of 80 can be found as follows:

  • 25 / 100 × 80 = 2000 / 100 = 20

From the example, 25% of 80 is 20 .

Therefore, 40% of 1 km(m) can be found as follows:

Let's convert km to metres.

1000m = 1km

40% of 1000

40 / 100 × 1000 = 40000 / 100 = 400metres

Therefore, 40% of 1 km in meters is 400 meters

learn more on percentage here: brainly.com/question/19540991?referrer=searchResults

5 0
2 years ago
Read 2 more answers
Cory's average score after 8 tests is 91%. If he gets a 78% on his 9th test what will his new average be?
Luda [366]
You should be able to multiply 91 by 8 to get the sum of the first 8 tests, then add the score on the 9th test. Then to get the average of the sum of the 9 tests you need to divide it by 9.
((91*8)+78)/9=89.555555555555.... So, 90%
3 0
3 years ago
How do you do inequalities
Alexandra [31]

Answer:

Summary Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own. But these things will change direction of the inequality: Multiplying or dividing both sides by a negative number. Swapping left and right hand sides

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • PLS HELPP WILL GIVE 70 POINTS!! How do you write a problem as an equivalent expression in standard form? Problems like 1+1 or (3
    5·1 answer
  • There are four triangles and 16 squares what is the simplest was ratio of triangles to squares
    8·1 answer
  • Rashawn read 25 pages of his book each day until he finished the book. His book was 400 pages long.
    5·2 answers
  • A random sample of records of electricity usage of homes in the month of July gives the amount of electricity used and size (in
    11·2 answers
  • Q5. Calculate the area and perimeter of the given shape with radius 14 cm.
    10·1 answer
  • A national standard requires that public bridges over feet in length must be inspected and rated every 2 years. The rating scale
    10·1 answer
  • Ms jaegar can type 280 words in 4 minutes on her computer. If this is her average rate, How much word will she type in 10 minute
    14·2 answers
  • The average age of a preschool class is 4.5 years old. If there is one 3-year-old, five 5-year-olds, and two other children both
    13·2 answers
  • Help T^T ion wanna fail this class
    12·2 answers
  • A student receives his grade report from a local community college, but the GPA is smudged. He took the following classes: a 2 h
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!