MATHEMATICS MIDDLE SCHOOL

fifty of the 80 students in the club were girls. what was the ratio of boys to girls in the club ? pls show workkk !! i will mark brainliest

Answers

Answer 1

Answer:

Answer:

30:50

Step-by-step explanation:

80 Students.

50 Girls.

The Rest would be Boys so 80-50 equals to 30.

This would make the ratio 30:50 which simplifies to 3:5

3 Boys for Every 5 Girls.

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What shape is the area of the triangle formula derived from?

Answers

The area formula can be derived from a triangle of any shape.

The formula is applicable to a triangle of any shape. No matter what is the shape of the triangle, the formula for the area of a triangle will always be:

Area $=(1)/(2)* base* height$

and this formula will give the area of any triangle, whether that be a triangle which has acute angles, or it can be a triangle that has an obtuse angle, or it can be a right angled triangle. The above mentioned formula is applicable in all the cases.

Please note that we can choose any side as the base and the height will be corresponding to the base chosen. The formula can be applied after the base and the height have been identified.

You backpacked for a distance of 15.75 miles today. If you backpacked at an average speed of 1.26 miles per hour, how many hours did you spend backpacking today

Answers

It would be 12.5. you would divide 15.75 by 1.26

Hi there! First, speed=Distance/time, and the time=distance/speed. The time spent for back packing was 15.75/1.26=12.5 hours. Therefore, the answer is 12.5 hours.

What is the solution of the linear equation -12+3b - 1 = -5 - b

Answers

Answer:

The solution of the given linear equation is 2.

Step-by-step explanation:

$-12+3b - 1 = -5 - b$

Step 1 :Take all the like terms on same side

$-12+5 - 1 = - b- 3b$

Step 2 :

$-8=-4b$

Step 3 :

$b=(-8)/(-4)=2$

The solution of the given linear equation is 2.

$- 12 + 3b - 1 = - 5 - b \n \n - 13 + 3b = - 5 - b \n \n - 8 = - 4b \n \n b = 2$

First, add both sides by 5 and then subtract both sides by 3b

The measure of an angle is 4y. Find the measure of its complement.A) 90 - 4y
B) 90 + 4y
C) 180 - 4y
D) 180 + 4y

Answers

Complementary angles are angles whose measure add up to 90°.

So, if one angle is 4y, the complementary angle is 90°- 4y. Choice A.

Complementary angles does not necessarily need to share a line or vertex. As long as both angles have a sum of 90°, then, they are complementary angles.

Angles who has a sum of 180° are called supplementary angles.

Answer:

Step-by-step explanation:

What are the missing angle in parallelogram rstu

Answers

how am i meant to know if i cant see?

Solve for x
-7/8x=-5?
A. X=-4 3/8

B. X=4 3/8

C. X= 5 5/7

Answers

the answer is c. x = 5 5/7

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a theatre sold a total of 780 adult and student tickets. An adult ticket costs $8, a student ticket costs $3, and the total ticket sales were $4,440. Write a system of equations and find the number of adult and student tickets sold.