MATHEMATICS HIGH SCHOOL

Three of the angles of a quadrilateral are 120 48 and 92 what is the size of the 4th angle

Answers

Answer 1

Answer:

Answer:

Measure of fourth angle of quadrilateral is:

100

Step-by-step explanation:

We know that the sum of angles in a quadrilateral is 360°

Three of the angles of a quadrilateral are 120 48 and 92

we have to find the sum of the fourth angle of the quadrilateral

Let measure of fourth angle be x

120+48+92+x= 360

i.e. 260+x = 360

Subtracting both sides by 260, we get

x= 100

Hence, Measure of fourth angle of quadrilateral is:

100

Answer 2

Answer: You do 120+48+92=280All angles in a quadrilateral add up to 360, so 360-280=80The answer is 80HAVE FUN DOING MATHS!

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3 (n+6) do I do 3xN=3n than 3x6=18 n=6?

Answers

yes because it's the distributive property. The distributive property is where you multiply whatever is in the parentheses to the number on the outside. For instance, 5(20+11) to answer this, you set it up like this: 5(_+_) this mean that there are two in the answer. So 5*20 equals 100 and 5*11 equals 55 so to set it up, you do 100+55. To see it the answer is right, you say 5(_+_) and like the factoring to find the numbe is the greatest common factor. The GCF of 100 and 55 is 5 so 100 divided by 5 equal 20 and 55 divided by 11 equals 5 so there you go.

Jamie had 20 marbles 5 marbles were green and 15 were blue what percent of the marbles were blue?

Answers

Answer:

Step-by-step explanation:

15/20 X 100% = 75%

Therefore 75% of marbles were blue

Combine like terms.
3y + y + 6y
A. 10y
B. 8y
C. 9y-y
D. 2y

Answers

First off,like terms are value with the same unknown.

For example,in the equation 2x+3y+5y+4x,

The like terms would be 2x and 4x, with the same unknown x,
and the other like terms would be 3y and 5y with the same unknown y.

In this case (3y+y+6y), as they all have unknown y, they all are like terms.

To combine,we can simply add them together:
$3y + y + 6y \n = 4y + 6y \n = 10y$

Therefore the answer is A. 10y.

Hope it helps!

Answer: Its A.) 10y

Step-by-step explanation:

in 2004, 34.2 million accountants e-filed income tax returns. this was 114% of the number who filed in 2003. Find the number of accountants who e-filed income tax returns in 2003

Answers

Answer:

30 million accountabts

Step-by-step explanation:

To get the number of accountant that refilled in 2003, 100/114 X 34.2 = 30

Find one percent by dividing it by 100, then multiply it by 114 and theres your answer.

Caroline bought 20 shares of stock at 101/2, and after 10 months the value of the stocks was 111/4. If Caroline were to sell all her shares of this stock, how much profit would she make? A. $10 B. $15 C. $225 D. $210

Answers

Answer:

$15 profit would Caroline make .

Option (B) is correct .

Step-by-step explanation:

As given

$Caroline\ bought\ 20\ shares\ of\ stock\ at\ 10 (1)/(2).$

i.e

$Caroline\ bought\ 20\ shares\ of\ stock\ at\ (21)/(2).$

$After\ 10\ months\ the\ value\ of\ the\ stocks\ was\ 11 (1)/(4).$

i.e

$After\ 10\ months\ the\ value\ of\ the\ stocks\ was\ (45)/(4).$

Thus

Profit = (Cost of the 20 stock after 10 month - Cost of the 20 stock before 10 month ) × Total number of shares .

$Profit = ((45)/(4) - (21)/(2))* 20$

L.C.M of (4,2) = 4

$Profit = (45 - 21* 2)/(4)* 20$

$Profit = (45 - 42)/(4)* 20$

$Profit = (3)/(4)* 20$

Profit = 3 × 5

Profit = $15

Therefore the $15 profit would Caroline make .

Option (B) is correct .

Your answer will be $15.

A rectangular garden has a perimeter of 48 cm and an area of 140 sq. cm. what is the width of this garden?

Answers

We can call a the width of the garden and b the length of the other side.
The perimeter of the garden is the sum of the two sides, and it is equal to 48 cm:
$a+b=48$ (1)
The area of the garden is the product between the two sides, and it is equal to $140 cm^2$ :
$a b = 140$

From (1), we find
$b=48 -a$
And by substituting this into (2)
$a(48-a)=140$
$a^2-48a+140 =0$
which gives two solutions:
$a=44.9$ , to which corresponds $b=48-a=48-44.9=3.1$
$a=3.1$ , to which corresponds $b=48-a=48-3.1=44.9$

So, the width of the garden is $44.9 cm$ while the length of the other side is $3.1 cm$ .

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