MATHEMATICS HIGH SCHOOL

The value of x is ____ °,and the value of y is____ °. this is really confusing help please..​
the value of x is ____ °,and the value of - 1

Answers

Answer 1
Answer:

Answer:

x is 60, y is 50

Step-by-step explanation:

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What is the length of the missing side of the quadrilateral shown if the perimeter is 5x^2+2x+1?

Answers

 I am thinking that the quadrilateral is not given to be a rhombus.

The perimeter is the sum of the 4 sides.

Adding 2x^2 + x -1 to 3x^2 -5x and then that sum to 4x^2 gives

9x^2 - 4x - 1 as the sum of the three given sides.

Subtract that from the given perimeter to get the missing side length.

5x^2 + 2x + 1 - (9x^2 -4x -1) =

-4x^2 + 6x + 2

The circumference of the Earth is approximately 1.31 x 108 feet. If there are 5,280 feet in a mile, about how many miles is the circumference of the Earth?

Answers

The number of miles is the circumference of the Earth is 24810.60 miles.

Given that, the circumference of the Earth is approximately 1.31*10^8 feet.

What is the circumference?

The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its centre. A meridian is any great circle passing through a point designated a pole.

In 1 mile = 5280 feet

Now, the number of miles = (1.31*10^8)/(5280)

= 131000000/5280

= 24810.60 miles

Therefore, the number of miles is the circumference of the Earth is 24810.60 miles.

To learn more about the circumference visit:

brainly.com/question/4268218.

#SPJ5

Answer:

First, divide 1.31 x 108 by 5,280 and the result is 2.48 x 104.

2.48 x 104 miles

Step-by-step explanation:

A concert charges $24.50 per daily adult ticket and $13.75 per child’s ticket. A group of 90 people paid $1560.00 for tickets. Write a system of equations that could be used to find x, the number of adult tickets purchased, and y, the number of children's tickets purchased?I know the answer i just need to know how to solve it. Thanks :)

Answers

x=adults
y=childern

x+y=90
24.50x+13.75y=1560

so
mutliply the first equation by -13.75 and add to second equaiton

-13.75x-13.75y=-1237.5
24.50x+13.75y=1560 +
10.75x+0y=323

10.75x=322.5
divide both sides by 10.75
x=30

x=30
sub back

x+y=90
30+y=90
minus 30 both sides
y=60


x=30
y=60
30 adults
60 kids

You scored 18 out of the 60 points scored by your team. what percent of your team's points did you score?70%30%

Answers

10% of 60 = 6
6 x 3 = 18
You scored 30% of your team's points.

Hope This Helps You!
Good Luck Studying :)
10% of 60=6 6x3=18 you scored 30% hopes this helped

a man has some hens and cows. if the number of heads is 48 and number of feet is 140. find the number of hens.

Answers