The system ax+by=c has the solution 2,-3, where Dx+ey=f. A b c d e and f are all non-zero real numbers select all the systems of equations with the same solution

If y is 7 when x is - 4 what is y when x is 5

Find the length of a diagonal of a rectangle if the length of the rectangle is 24cm and it's width is 10cm

Type the correct answer in the box. The formula for the volume, V, of a cone having the radius, r, and the height, h, is shown below. v=1/3πr^2h Write the formula to calculate the height, h.

You have piano lessons every 7 days and tuba lessons every 3 days. Today you have both lessons. In how many days will you have both lessons on the same day again

a graphic designer created a logo on eight and a half by 11 inch paper. In order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. What is the scale factor of the dilation

Twenty five students are in class. each student will have one fourth of sandwich for a snack. each sandwich is made with two slices of bread.

F (x) = 2x-6 and g (x) = 3x+9, find (f+g) (x) A (f + g) (x) = - x - 15 B (f + g) (x) = 5x + 3 C (f+g) (x) = 5x+15 D (f+g) (x) = x+15

Resuelve las siguientes ecuaciones tales que 0° ≤ x ≤ 360° sen x=sen (π/2-x) cos x + 2 sen x = 2 csc x = sec x 2 cos x * tan x - 1 = 0 4 cos2 x = 3 - 4 cos x

The price of a television was reduced from $280.00 to $256.20. What was the percent of decrease in the price?

Yesterday, Patrick had 9 comic books in his collection. This morning, he bought 3 more comic books. Now Raven has twice the number of comic books that Patrick has. How many comic books does Patrick have now? How many comic books does Raven have now?