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1 year ago

What are lines that cross at 90 degrees is called

Mathematics

1 answer:

Bezzdna [24]1 year ago

5 0

The lines that cross or intersect at 90 degrees are called perpendicular lines. These lines form a right angle

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Students at a local high school travel to school by car, bus, and bicycle. 1/5 of the 825 students Tavel by car, 48% of the stud

dezoksy [38]

Answer:

198 students walk to the local high school

Step-by-step explanation:

Total number students = 825

1/5 of the students travel by car

48% of the students travel by bus

0.08 of the students travel by bicycle

To find the number of students who wal to school we have to find the exact number of students who travel to school by car, bus and bicycle and subtract the result from the total number of students

Students who travel by car = 1/5×825

= 165 students

Students who travel by bus = 48% × 825

= 48/100 × 825

= 12/25 × 825

= 396 students

Students who travel by bicycle = 0.08 × 825

= 66

So now we add the results fo the equations above and subtract it from the total number of students to get the number of students that walk to school

Students that walk to school = 825 - (165 + 396 + 66)

= 825 - 627

= 198 students

Therefore 198 students walk to the local high-school

7 0

3 years ago

Anderson earns $20 per month for completing chores around the house. Each month, the amount Anderson earns increases by $0.50. W

Eva8 [605]

Mathematical equation -

20 + 0.50x = ?

X is the placeholder which in this case equals months

But in this case you want to look for form month three to month 18 (which is 15 months) so three months went by so the equation is

$61.50(being the three months already)

(20+(0.50*15))+61.50=?

6 0

3 years ago

Factorise using identity 4y^2 - 12yz+9z^2

Andrew [12]

Step-by-step explanation:

Identity used  :

$\bold{ ({y}^{2} + {z}^{2}) = {y}^{2} + 2yz + {z}^{2} }$

$\implies \: {(2y)}^{2} - 2.2y.3z + {(3z)}^{2}$

so we got :

y = 2

z = 3

${ \pink{ \bold{ \boxed{answer = (2y + 3z) {}^{2} }}}}$

 

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4 years ago

This graph shows the number of text messages sent in an hour by different people. A number line labeled 4 through 12 by ones. Ab

777dan777 [17]

8 because i’m smart and i know

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3 years ago

Which inequality represents the sentence below?

VARVARA [1.3K]

The second one 2 + (number) < 14

6 0

3 years ago

Read 2 more answers