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3 years ago

13

Triangle A is dilated by a scale factor of 2. What is the ratio of the perimeter of Triangle A to the perimeter of Triangle B? A

) 1:2 B) 1:3 C) 1:4 D) 1:8

2 answers:

leva [86]3 years ago

7 0

The answer is A) 1:2

Svetach [21]3 years ago

5 0

Answer: 1:2

Step-by-step explanation: 1:2. The two triangles are similar, therefore, the ratio of the perimeters is the same as the ratio of the sides.

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Complete the steps to find the value of x.<br> 2x<br> 1289<br> 22<br> 2

Oksanka [162]

Answer:

Step-by-step explanation:

2x = 128

x = 128/2

x = 64

6 0

3 years ago

Quadrilateral CAMP below is a rhombus. The length of PQ is (x + 2) units, and the length of QA is

Phoenix [80]

Q cuts the diagonal PA into 2 equal halves, since the diagonals of rhombus meet at right angles.

<u>Step-by-step explanation:</u>

As given by the statement in the problem,

Q may be the middle point, which cut the diagonal PA into 2 equal halves.

In rhombus, diagonals meet at right angles.

which means that PQ = QA

x+2 = 3x - 14

Grouping the terms, we will get,

3x -x = 14+ 2

2x = 16

dividing by 2 on both sides, we will get,

x = 16/2 = 8

8+2 = 3(8) - 14 = 10 = PQ or QA

3 0

3 years ago

Which set of ordered pairs does not represent a function?

weqwewe [10]

Answer:

{(0,0),(0,1),(1,2),(1,3)}

Step-by-step explanation:

If this was a function it would be (0,0) ,(1,1), (2,2) ,(3,3) and so on

4 0

3 years ago

Mary and Mike went to the store to buy colored pencils for their science class.mike bought a 12-pack for 1.69,and Mary bought a

sweet-ann [11.9K]

12-pack for 1.69 is a better buy

<em><u>Solution:</u></em>

Given that, Mike bought a 12-pack for 1.69 and Mary bought a 24-pack for 3.18

We have to find which is the better buy

First we have to find the unit rate

Unit rate is cost of 1 pack

<em><u>Mike bought a 12-pack for 1.69</u></em>

Therefore,

Cost of 12 pack = 1.69

Cost of 1 pack is found by dividing 1.69 by 12

$cost\ of\ 1\ pack = \frac{1.69}{12} = 0.14083$

Thus unit rate of Mike is 0.14083 dollar per pack

<em><u>Mary bought a 24-pack for 3.18</u></em>

Cost of 24 pack = 3.18

Cost of 1 pack is found by dividing 3.18 by 24

$cost\ of\ 1\ pack = \frac{3.18}{24} = 0.1325$

Thus unit rate of Mary is 0.1325 dollars

<em><u>On comparing both the unit rate</u></em>

$0.14083>0.1325$

Thus unit rate of Mike is larger

Thus, 12-pack for 1.69 is a better buy

3 0

3 years ago

A farmer plants 987 apple trees in 9 rows. Can each row have the same number of trees? How do you know?

alexira [117]

Answer:

No,

Step-by-step explanation:

each row can not have the same number of trees as the number 987 can not be evenly divided into 9 rows.

6 0

3 years ago

Read 2 more answers