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lana66690 [7]
3 years ago
7

Two rectangles are similar. One has a length of 11 cm and a width of 10 cm, and the other has a width of 7 cm. Find the length o

f the second rectangle. Round to the nearest tenth if necessary.
A. 8.9 cm
B. 6.4 cm
C. 7.7 cm
D. 5.8 cm
Mathematics
2 answers:
amm18123 years ago
6 0
7.7 cm Because the sides of similar figures are in direct proportion to each other
earnstyle [38]3 years ago
4 0

Answer:  The correct option is

(C) 7.7 cm.

Step-by-step explanation:  Given that two rectangles are similar. One has a length of 11 cm and a width of 10 cm, and the other has a width of 7 cm.

We are to find the length of the second rectangle.

Let l represents the length of the second rectangle.

We know that the corresponding sides of two similar rectangles are proportional.

So, we must have

\dfrac{11}{l}=\dfrac{10}{7}\\\\\Rightarrow 10l=77\\\\\Rightarrow l=\dfrac{77}{10}\\\\\Rightarrow l=7.7.

Thus, the required length of the second rectangle is 7.7 cm.

Option (C) is CORRECT.

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A rectangle has a perimeter of 30 inches if the width is 3 times it’s length find it dimension
kakasveta [241]

Answer:

Length = 11.25 and width = 3.75 inches.

Step-by-step explanation:

You must mean that the length is 3 times its width.

If the the width is x then the length is 3x inches.

Perimeter = 2*length + 2*width.

2(3x) + 2x = 30

6x + 2x = 30

8x = 30

x = 3.75.

3x = 11.25.

7 0
3 years ago
Please help i don't get it
Ivan
The perimeter is just all the lines around the outside of the shape so basically take all the numbers and add them together to get the answer
3 0
3 years ago
Read 2 more answers
You have been assigned 40 homework assignments this marking period. You have completed 18 of them. What percent of homework assi
djyliett [7]

Answer:

45%

Step-by-step explanation:

Simply divide your partial amount (18 in this case) by your total (40), and you then multiply your answer from 18/40= .45 by 100, and you get 45. This is 45%

4 0
3 years ago
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Josh is mixing together concrete to build a brick wall. He's made 6 gallons of concrete with a mixture of 50% water. The instruc
katrin2010 [14]

Answer:

15%.,..........,..............,.......,..............,...........

3 0
3 years ago
According to a poll, 30% of voters support a ballot initiative. Hans randomly surveys 5 voters. What is the probability that exa
VMariaS [17]

The probability that exactly 2 voters will be in favor of the ballot initiative is 0.309.

<h2>Given</h2>

Number of voters who support ballot initiative = 30 % = 0.30

Number of voters who does not support this initiative = 1 - 0.30 = 0.70

Number of voters selected for Surveying = 5

<h3>What is probability?</h3>

The probability of success and failure remain the same throughout the trials.

The probability that exactly 2 voters will be in favor of the ballot initiative is given by;

If P denotes Success and Q denotes failure;

\rm = ^{5}C_2 \times (0.3)^2 \times (0.70)^3\\\\= 10 \times 0.09 \times 0.343\\\\= 0.309

Hence, the probability that exactly 2 voters will be in favor of the ballot initiative is 0.309.

To know more about Probability click the link given below.

brainly.com/question/20344726

3 0
2 years ago
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