3 years ago

For what value of x must ABCD be a parallelogram ?

Mathematics

1 answer:

Pavlova-9 [17]3 years ago

7 0

Answer:

x = 4

Step-by-step explanation:

as it is parallelogram opposite sides are equal

so14x -7= 10x-9

14x-7+9=10x

14x -16 = 10x

14x -10x = 16

4x =16

x = 16/4

x = 4

also u can put x = 4 in both expressions and u will get answer of both 49

You might be interested in

Which algebraic expression represents “Nicholas tripled his workout time”?

Nata [24]

Answer:

times 3

Step-by-step explanation:

workouttime³

6 0

2 years ago

Read 2 more answers

62174 times 24724 Please help I don't understand plus I don't have a calculator.

docker41 [41]

When I multiply it’s is shows 1.53719

3 0

2 years ago

Need help asapp!!!!!!!!!!!!

MissTica

Answer:

Sorry I don't talk uwu voice I don't no wat to speak uwuuu I just yry one

4 0

2 years ago

Eugene walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph.

Fynjy0 [20]

$\text{Answer: }1\frac{23}{40}\ miles\text{ far she live from school.}$

Explanation:

Since we have given that

Speed at which Eugene walked all the way to school = 3 mph

After realizing that she forgot her math book, she ran back

Speed at which Eugene walked back to her house = 7 mph

Let the distance between her house and her school be x

According to question,

$\frac{x}{3}+\frac{x}{7}=\frac{45}{60}\\\\\frac{7x+3x}{21}=\frac{3}{4}\\\\\frac{10x}{21}=\frac{3}{4}\\\\x=\frac{3\times 63}{4\times 10}=\frac{63}{40}=1\frac{23}{40}\ miles.$

Hence,

$1\frac{23}{40}\ miles\text{ far she live from school.}$

8 0

2 years ago

What decimal is equivalent to 21% ?

makkiz [27]

...it’s 0.21 because 21% is 21/100 which makes it 0.21

7 0

2 years ago

Read 2 more answers