3 years ago

What is the value of x in QRST? A. 16 B. 12 C. 8 D. 4

Mathematics

2 answers:

4vir4ik [10]3 years ago

7 0

Answer:

the answer is the option D

$4\ units$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The figure is a parallelogram

In a parallelogram,the diagonals bisect each other

$8=2x$ ------> $x=4\ units$

$12=3x$ ------> $x=4\ units$

larisa86 [58]3 years ago

6 0

It is c 8 II hope I helped

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Ralph is 3 times as old as Sara. In 4 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now. Ralph's

IgorLugansk [536]

Let
R = Ralph's age
S = Sara's age

First statement is translated as:
S = 3R

Second statement is translated as:
S + 4 = 2(R + 4)

Use the first equation to be substituted into the second one in terms of R which is the one we are actually going to solve for Ralph's age.
Since S = 3R, then
3R + 4 = 2(R + 4)
3R + 4 = 2R + 8
3R - 2R = 8 - 4
R = 4 years old

7 0

2 years ago

Read 2 more answers

Solve for p.<br> -p - 1 = 5 - 9p + 10p

Darina [25.2K]

Answer:

p= 1/3 or 0.33 repeating

Step-by-step explanation:

5-19p=-p-1

5=18p-1

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