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Snowcat [4.5K]
3 years ago
14

Some rectangles are not parallelograms

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
5 0

Answer:

I'm not sure what your asking, but, no, all rectangles are parallelograms.

I found this over the internet, and I hope it helps you understand why a rectangle is always a parallelogram, but a parallelogram is not always a rectangle:

It is true that every rectangle is a parallelogram, but it is not true that every parallelogram is not a rectangle. For instance, take a square. It's a parallelogram — it is a quadrilateral with two pairs of parallel faces. But it is also a rectangle — it is a quadrilateral with four right angles.

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Jack Frost is looking at internet service plans. A local company offers a one-month plan for $39.95 or a two-month plan for $68.
bija089 [108]

Answer:

$10.93

Step-by-step explanation:

If Jack got the one month plan for two months, he would have to pay  $39.95 twice.

Cost of jack getting the one month plan for two months =  $39.95 x 2 = $79.90

Money saved = cost of the one month plan for two months - cost of the two months plan

$79.90 - $68.97 = $10.93

4 0
2 years ago
ILL BRAINLIEST YOU IF YOU GET IT RIGHT! Please help me
lara31 [8.8K]

Answer:

x = 25

Step-by-step explanation:

If JK and MN are parallel lines, then ∠JKL = ∠LMN = 61°

By the opposite angle rule, ∠JLK = 39°

In a triangle three angles sum up to 180°

so, ∠JLK + ∠JKL +LJK = 180°

39° + 61° + 3x+ 5 = 180°

3x = 75

x = 25

5 0
3 years ago
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3x - 5y = 15<br> x - 4y = 12<br> Substitution method
Scorpion4ik [409]

Answer:

x=0,y=-3

Step-by-step explanation:

3x-5y=15 - equation(1)

x-4y=12 => x=12+4y -equation (2)

Replace equation (2) in equation (1)

3(12+4y)-5y=15

36+12y-5y=15

7y=15-36

7y= -21

y = -21/7

y=-3

If y=-3,then replace in equation (1) ; 3x -5(-3)=15

3x+15=15

3x=0

x=0

4 0
3 years ago
Shelby's Ice Cream Shop sold 8 sundaes with nuts and 4 sundaes without nuts. What is the ratio of the number of sundaes with nut
Romashka-Z-Leto [24]

Answer: 2:1

Step-by-step explanation:

The ratio of A to B is given by :  \dfrac{A}{B} or A : B  .

Given : sundaes with nuts  = 4

sundaes without nuts = 8

The ratio of the number of sundaes with nuts to the number of sundaes without nuts = \dfrac{8}{4}=\dfrac{2}{1}\ \ \ [\text{Divide numerator and denominator by 4 }]

= 2:1

hence, the required ratio = 2:1 .

3 0
3 years ago
Select the correct answer. 3 Twenty-seven minus 2 of a number (X) is not more than 36. What is the number? N O A. x &gt; 42 OB.
e-lub [12.9K]

Answer:

the answer should be A.

Step-by-step explanation:

- College brother

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3 years ago
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