Side a of a triangle is 4 cm longer than side b. Side c is twice as long as side b. What is the length of each side if the perimeter is 28 cm? Draw and label picture. Show all work with labeled answer.

Answers

Answer 1
Answer:

Side a, b and c are 10cm , 6cm , 12cm

Given that;

Side a = 4 + Side b

Side c = 2(Side b)

Perimeter of triangle = 28 cm

Find:

Length of each side

Computation:

Assume;

Side b = q

Side a = 4 + q

Side c = 2q

So,

Perimeter of triangle = 28 cm

q + 4 + q + 2q = 28

4q = 24

q = 6

Side a = 10 cm

Side b = 6 cm

Side c = 12 cm

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brainly.com/question/20955459?referrer=searchResults

Answer 2
Answer: a=b+4\nc=2b\na+b+c=28\n\nb+4+b+2b=28\n4b=24\nb=6\n\na=6+4\na=10\n\nc=2\cdot6\nc=12\n\n\boxed{a=10,b=6,c=12}

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Car rental company A charges $45 a day to rent a certain car. Car rental B charges $30 a day plus $0.20 per mile to rent a similar car. For how many miles is the cost at car rental Company B more than the cost at car rental company A?​

If a gain of 5 yards is shown by 5, what does -5 mean?

Answers

Step-by-step explanation:

Think of all possible numbers walking back and forth, positive means walking forward, negative means walking backwards. You start at zero, so 5 represents walking 5 yards forward. This would mean that negative 5 means walking backwards, it would still be five yards. Since 5 is a gain of 5 yards, -5 would mean a loss of 5 yards.

Find the slope of the line that passes through (5,2) and (4,-1)

Answers

Answer:

3

Step-by-step explanation:

2 - -1= 3

5-4 = 1

3/1 = 3

3. The answer is 3. That is the answer

What's te square root of 64

Answers

the square root of 64 is 8
Square root of 64 =8 
8^2=8*8=64 <--This is also called a perfect square  

Jina drove 693 miles in 11 hours at the same rate how many miles would she drive in 7 hours

Answers

693 / 11 =  63, she drives 63 miles per hour.
63 x 7 = 441.

So she would drive 441 miles in 7 hours if going at the same speed of 63mph.

If A=kr² and V=kr³, find the percentage increase in A and V if r is increased by 20%​

Answers

Answer:

The percentage increase in A is 44%. The percentage increase in V is 72.8%.

Step-by-step explanation:

The easiest way to go about solving this problem is to pick your own numbers and plug them into the given equations.

For example, let's say that k = 5 and that r = 10.

A=kr^(2)  ⇒ A= 5 * 10^(2) =500

V=kr^(3)V= 5 * 10^(3)= 5000

The question is asking, what is the percentage increase if r is increased by 20%. Our chosen k-value will stay the same but our r-value is going to increase. To find the new value of r, we multiply 10, our current value of r, by 1.2. This gives us a new value for r, which is 12.

10*1.2=12

Now, we are going to plug in our new r-value and our k-value into the given equations. k = 5; new r = 12

A=kr^(2)A=5*12^(2)=720

V=kr^(3)V=5*12^(3)=8640

Next, we have to calculate the percentage increase in our values of A and V. To do this, we use the following formula:

Percentage Increase = (final - initial)/(initial) * 100

Percentage Increase for A

Initial value: 500

Final Value: 720

Percentage Increase = (720-500)/(500) * 100 = 44%

Percentage Increase for V

Initial value: 5000

Final Value: 8640

Percentage Increase= (8640-5000)/(5000) *100 = 72.8%

The percentage increase for A is 44% and the percentage increase for V is 72.8%.

Hope this helps!

Which classification best represents a triangle with side lengths 10 in., 12 in., and 15 in.?

Answers

The following triangle is a scalene triangle

Answer:

obtuse

Step-by-step explanation: