Answer these questions

1.) the ratio of two numbers is 3: 7. if the bigger number is 21, find these numbers.

2.) the ratio of boys to girls in grade 6 is 3: 5. if there are 320 grade 6 students, how many girls are there?

3.) the ratio of three numbers is 1: 3: 5. find these three numbers whose sum is 72.

4.) the difference of two numbers is 42. if their ratio is 11: 5, find the two numbers.

5.) the ratio of three numbers is 3: 5: 9. if the difference of the biggest and the smallest number is 420, what is the sum of the three numbers?

answer: dead jah

step-by-step explanation:

bullet + jah= dead jah

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.