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BigorU [14]
3 years ago
10

The length of a rectangle is 5 more than twice the width. If the perimeter of th

Mathematics
1 answer:
Deffense [45]3 years ago
3 0
L=length, w=width
l=2w+5
2l+2w=34
2l=4w+10 [here I just multiplied the first equation by two]
4w+10+2w=34 [substitute 4w+10 for 2l]
6w=24, w=4
remember l=2w+5 so l=2(4)+5=13

Answer: The length is 13.
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A tour company has a boat that sits at most 40 passengers. For a cruise on the Hudson River they charge $12 per adult and $5 per
EleoNora [17]

Answer:

No

Step-by-step explanation:

For the adults:

$12 times the 14 adults which is: $168

Then for the kids:

$5 times the 9 kids which is: $45

Add next:

$168 plus the $45 equals $213

A(14)+b(5)=c

5 0
3 years ago
What is the solution to this system of equations?
labwork [276]

Answer:

C

Step-by-step explanation:

C. x=7, y=5

4 0
2 years ago
HELP HELP HELP HELP<br> BEEN STUCK FOREVERRR
elena-s [515]

Answer:

r ≈ 31.5 cm

Step-by-step explanation:

The arc of a circle is calculated as

arc = circumference of circle × fraction of circle

Here arc = 22 , then

2πr × \frac{40}{360} = 22

2πr × \frac{1}{9} = 22 ( multiply both sides by 9 to clear the fraction )

2πr = 198 ( divide both sides by 2π )

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5 0
3 years ago
Determine whether the function represents exponential growth, exponential decay, or neither. Explain.y = 161(0.725)t
SOVA2 [1]
If it looks like this
y = 161*(0.725)^t then it's a decay. Reason: the base is under 1. Try a couple of values for t say 0,1,2

y = 161 * (0.725)^0 
y = 161

y = 161 * (0.725)^1
y = 161 * 0.725
y = 116.7

y = 161 * (0.725)^2
y = 161 * (0.5256
y = 84.63

You can see that the function is steadily getting smaller. Remember if the base is under 1 and more than 0 the function decays. If it is greater than 1 then the function grows.

Just to make sure we understand what I'm saying
0 < base < 1
y = a ( base)^power.
6 0
3 years ago
Harshdeep was playing basketball with his friends with seconds left before the game ended he attempted a 3 point shot the follow
vitfil [10]

Answer:

<h2>After two seconds, the ball reached 9 units up.</h2>

Step-by-step explanation:

The given function is

y=-x^{2} +4x+5

The given function models the path of the ball.

The maxium height the ball reached is given by the vertex of this function, which has coordinates V(h,k), where h=-\frac{b}{2a} and k=f(h).

From the equation, we know that a=-1, b=4 and c=5. Replacing these values, we have

h=-\frac{4}{2(-1)}=2

k=f(2)=-(2)^{2} +4(2)+5=-4+8+5=9

Where k determines the height and h the time when the maximum height was reached by the ball.

The maximum height is 9 units.

Therefore, after two seconds, the ball reached 9 units up.

7 0
4 years ago
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