This is a parallelogram. What we know about the diagonals is that they intersect each other at their midpoints. In other words, QT = ST, and PT = RT. So that gives us 2 equations:

If QT = ST, then

2x = y + 3

If PT = RT, then

x + 5 = y Solving by substitution, plug x + 5 in for y in the first equation.

2x = x + 5 + 3 and

2x = x + 8 and

x = 7 Now plug in 7 for x to solve for y:

If x + 5 = y, then

7 + 5 = y and

y = 12

6 0

3 years ago

3112 was rounded to the nearest one.<br> What is the lower bound?

grin007 [14]

Answer:

3111.5.

Step-by-step explanation:

3112 - 0.5 = 3111.5.

3 0

3 years ago

I need help with this problem...

sattari [20]

7.4z-5(-1.6z+2.4)
7.4z+8z-12
15.4z-12

Hope this helps :)

4 0

3 years ago

1. In some music, a whole note equals one measure, a quarter note

Ipatiy [6.2K]

Answer:

3 eighths are needes to make up the rest of the measure.

Step-by-step explanation:

1/4 + 1/4 + 1/ 8 + x = 1

2/4 + 1/8+x=1

4/8 + 1/8+x=1

5/8 + x=1

x=1 - 5/8

x=3/8

We need three eights.(Because 3/8=1/8+1/8+1/8 and 1/8 represents an eights)

5 0

3 years ago