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2 years ago

Can i please get some help on this? Thanks

Mathematics

2 answers:

erastovalidia [21]2 years ago

7 0

Answer:

3/4

if there are 12 boys the 28-12=16

12/16 in its simplest form is 3/4

UNO [17]2 years ago

5 0

Answer:

3/4

Step-by-step explanation:

First, find the # of girls. 28 total members, less 12 boys, leaves 16 girls.

Write the ratio boys/girls as 12/16. Reduce this to 3/4.

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There is a lock with 5 buttons numbered from 1 to 5. The combination that opens this lock can be set to any sequence of buttons

Fittoniya [83]

Answer:

Answer Counterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axis explanation the given figure has vertices p(1,2),q(2,1),r(3,2),s(3,3)recall that for counterclockwise rotation about the origin, (x,y)\rightarrow (-x,-y)when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will become p1( - 1, - 2),q1( - 2, - 1),r1( - 3, - 2),s1( - 3, - 3)next, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,p'(1, - 2),q'(2, - 1),r'(3, - 2),s'(3, - 3)

Step-by-step explanation:

7 0

3 years ago

I NEED THIS TO BE CORRECT, I WILL GIVE ANYTHING!!

Andrew [12]

Answer:

a) 105 degrees

b) 75

c) 105

Step-by-step explanation:

a) 180-75 is 105 (supplementary angles)

b) same angle as kings ave and 4th street. (supplementary angles)

c) 180-75 is 105 (also vertical angle rule)

3 0

3 years ago

The system has how many solutions?

mafiozo [28]

Answer:

1 solution

Step-by-step explanation:

It's only 1, because the two lines intersect in one spot only.

4 0

3 years ago

Read 2 more answers

Find an expression which represents the difference when (6x-3y) is subtracted from (9x+2y) in simplest terms.

Alex73 [517]

Answer:

$3x+5y$

Step-by-step explanation:

Subtract (6x-3y) from (9x+2y):

$(9x+2y)-(6x-3y)$

This can also be seen as:

$(9x+2y)-1(6x-3y)$

Distribute the -1 to (6x-3y):

$(9x+2y)-1(6x)-1(-3y)\\\\(9x+2y)-6x+3y$

Simplify the parentheses:

$9x+2y-6x+3y$

Group like terms:

$(9x-6x)+(2y+3y)$

Combine:

$3x+5y$

This expression can't be further simplified. Therefore, 3x+5y is the answer.

:Done

6 0

2 years ago

what is the best approximation of the solution to the system to the nearest valus 2x-3y=-6 and x+2y=8

Trava [24]

Given:
2x - 3y = -6 ⇒ identified as 1st equation
x + 2y = 8 ⇒ identified as 2nd equation

Let us first get the value of x using the 2nd equation.
x + 2y = 8
x = 8 - 2y

Substitute x in the 1st equation with its value and find the value of y.
2x - 3y = -6
2(8-2y) - 3y = -6
16 - 4y -3y = -6
-4y - 3y = -6 -16
-7y = - 22
y = -22/-7
y = 22/7 simplified to 3 1/7

Substitute the value of y in the 2nd equation.
x = 8 - 2y
x = 8 - 2(22/7)
x = 8 - 44/7
x = (8 * 7/7) - 44/7
x = 56/7 - 44/7
x = (56-44)/7
x = 12/7 simplified to 1 5/7

To check: x = 12/7 and y = 22/7 *we need to use the improper fractions.
2x - 3y = -6
2(12/7) - 3(22/7) = -6
24/7 - 66/7 = -6
(24-66)/7 = -6
-42/7 = -6
-6 = -6

x + 2y = 8
12/7 + 2(22/7) = 8
12/7 + 44/7 = 8
(12+44)/7 = 8
56/7 = 8
8 = 8

8 0

3 years ago