A certain tiger shark is 55 cm long at birth and grows 2.5 cm / year. A certain hammerhead shark is 25 cm long at birth and grows 5 cm/year. When will the sharks be equal in length?

Let x = time in years

Let y = length of the sea creatures

The equation for the length of the tiger shark is
[ Select ]
. The equation for the length of the spiny dogfish hammerhead shark is
[ Select ]
. Solving with elimination, the sharks will be equal in length when
[ Select ]
years have passed.

Answers

Answer 1

Answer:

Step-by-step explanation:

equation for tiger shark:

for each additional year, it grows by 2.5 cm so that would be shown as 2.5x. also it starts at 55 so you would have to add 55 to that 2.5x.

the equation would be y = 2.5x + 55

equation for hammerhead:

do the same process with the other numbers. this would be

y = 5x + 25

solve with elimination:

subtract the two equations, which would eliminate the y variable

y = 5x + 25

- (y = 2.5x + 55)

you get

0 = 2.5x - 30

solve that for x

2.5x = 30

x = 12 years

so the years that have passed is 12. to find the length, plug in x = 12 into one of the equations:

y = 5x + 25 becomes y = 5 * 12 + 25 = 60 + 25 = 85

so they will be 85 cm long each.


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Answer:

D > -42

Step-by-step explanation:

What is the answer for this one: If the temperature is 3 degrees and it falls by 12 degrees, what is the new temperature?

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Answer:

-9 degrees

Step-by-step explanation:

3-12=-9

Answer:

-9 degrees

Step-by-step explanation:

Just think it through. If it's currently 3 degrees out side and then the temperature drops another 12 degrees, what will the temperature be.

If you're still having trouble visualizing it, picture it on a number line. It becomes:

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3-12 = -9

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b 16
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Answer:

a) 28

Step-by-step explanation:

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(1/4) + (-21/8) = -19/8 = -2.375
Ok done. Thank to me:>

Answer:

u can use the scientific calculator to answer this question easily.

Step-by-step explanation:

Solve the following systems of equations by substitution or graphing.

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Answer:

Answer:

Speed of the wave in the string will be 3.2 m/sec

Explanation:

We have given frequency in the string fixed at both ends is 80 Hz

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We know that distance between two adjacent anti nodes is equal to half of the wavelength

So \frac{\lambda }{2}=20cm

2

λ

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4(3q + 10) = 6( 2q - 9 )

Answers

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your answer would be: -94
Sorry if wrong

A total of 379 tickets were sold for the school play. They were either adult tickets or student tickets. There were 71 fewer student tickets sold than adult tickets. How many adult tickets were sold?

Answers

A total of 225 tickets were sold to adults for the school play.

How many tickets were sold to adults?

In this problem we see the case of 379 tickets being sold to adults and students and there was 71 tickets more sold to adults. This situation is defined by following equations:

x + y = 379

x + 71 = y

Where:

x - Tickets sold to students.y - Tickets sold to adults.

Now we proceed to solve the system of linear equations:

x + (x + 71) = 379

2 · x = 308

x = 154

And the number of tickets sold to adults is:

y = x + 71

y = 154 + 71

y = 225

To learn more on systems of linear equations: https://brainly.com/question/21292369

#SPJ1

NEED HELP ASAP!!!!!
Jeff and Ed are climbing a small mountain. The height Jeff climbed with respect to time is given by the function H(t) = -250|x − 4| + 1,000. Ed’s height with respect to time is modeled in the graph.

Ed and Jeff both climb to the mountain’s peak and then climb back down.

The maximum height of the mountain is (blank) feet. Jeff takes (blank) hour(s) less than Ed to go up all the way and come back down.

Answers

Answer:

Step-by-step explanation:

The maximum height of the mountain is 1000 feet. Jeff takes 10 hour(s) less than Ed to go up all the way and come back down

What number is halfway between 6.7 and 11.9

Answers

Answer:

2.05

Step-by-step explanation:

To find the Median value, we begin by sorting Or arranging our numbers In ascending Or descending order.

-8.8,-5.7,-2.6,0.5,3.6,6.7,9.8,11.9

Having an even (8) number of values, the median is the midway point between the two middle numbers.

In our case the two middle numbers are 0.5 and 3.6

(0.5+3.6)/2

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the area of a triangle with vertices at (-3,-2),(3,-2),(1,2) is

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Answers

Answer:

12

Step-by-step explanation:

First, you have to graph (which I sadly cannot provide an image of)

Then look at the vertical height which is 4, the how long it is which is 6.

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Answers

6 700 000 is the answer because 2 significant figures just means the first two numbers and then the rest 0

An airport parking lot has 2,800 spaces. if each row has 25 spaces, how many rows are there?

Answers

Answer: 112 rows

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Liza types 180 words in 3 minutes. At
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take her to type 1,260 words?

Brainliest to a person who gets it right.

Answers

Answer:

21 minutes

Step-by-step explanation:

180 divided by 3 is 60 wpm

1260 divided by 60 is 21

omg please help for brainlist !!!!!!!!!!!!!!!

Answers

Answer:

1a

Step-by-step explanation:

8000*0.25=2000

2000*0.25=500

500*0.25=125

...

A, or f(x) = 8,000(1/4)^x

8,000 is our starting number since number of half lives is our x, and at x = 0, remaining amount of substance is equal to 8,000. As we can see on the graph, the number decreases by a quarter of its original value every time. Since the number is not getting bigger, we use a fraction instead of a whole number. Finally, the exponent makes sure that it’s a quarter of the product from before.

Hope this helps!

What is the slope of the line on the graph?



Enter your answer in the box.

Answers

Answer:

-1/3x+4

Hope This Helps!!!

find the common factor and rewrite.
8A + 11A =
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Answers

Answer:

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Step-by-step explanation:

   8A + 11A

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Answers

Solution: 1/3 + 3/5

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Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

If AD=DB  and  AE=EC,

then DE¯¯¯¯¯∥BC¯¯¯¯¯ and DE=12BC .

I don't know what to pick..

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Answer:x=3

Step-by-step explanation:Multiply both sides of equation by four. Subtract 56 from the left and move to the right. Calculate 80-56. Divide by 8 on both sides x=3

find.


number y if 2/5of y is 22​

Answers

Answer
y=55

Reason
If 2/5y =22,
then 1/5y=11.
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A lizard is 4 1/2 inches long.
How long is the lizard in centimeters?

Answers

Answer:

The lizard is 11.43 centimeters long.

Determine which relation is a function.
Question options:



{(–4, 3), (–2, 3), (–1, 2), (2, 5), (3, 2)}




{(–4, 1), (–2, 3), (–2, 1), (–1, 5), (3, 2)}




{(–4, 1), (–2, 3), (–1, 2), (3, 5), (3, 2)}




{(–4, 1), (–2, 3), (–1, 1), (–1, 5), (3, 2)}

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Answer:

the correct answer is option ( C )

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x = 0 ⇒ (0⁵ + 32) = (0 + 2)⁵ ⇒ 32 = 32

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Ok done. Thank to me :>

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Answers

Answer:

225 pepper seedlings.

Step-by-step explanation:

WAY 1: common sense

half of 150 is 75

75 + 150 = 225

WAY 2: % of number

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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h(x)=3x−3, find h(3)

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Answers

Answer:

  0.01010

Step-by-step explanation:

The decimal equivalent is ...

  [tex]\dfrac{1}{99}=0.\overline{01}[/tex]

Rounded to 4 significant figures, it is ...

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!!!HELP!!!
1) Which transformation can be used to map ABCD onto EFGH and to confirm that the figures are congruent?
A) ABCD can be mapped to EFGH with a translation right 4 units and down 4 units.
B) ABCD can be mapped to EFGH with a translation left 4 units and down 4 units.
C) ABCD can be mapped to EFGH with a translation left 4 units and up 4 units.
D) ABCD can be mapped to EFGH with a translation right 4 units and up 4 units.


2) Which sequence of transformations will only produce a figure similar to but not congruent to the figure ABCD?
A) ABCD is translated 2 units to the right and then reflected across the x-axis.
B) ABCD is translated 4 units left, 2 units up, and then reflected across the y-axis.
C) ABCD is rotated 180° clockwise about the origin and the translated 3 units right.
D) ABCD is dilated by a scale factor 3 and then rotated 90° clockwise about the origin.

Answers

Answer:

itsb a

Step-by-step explanation:

sorry

Answer one question. Thanks

Answers

The y-intercept is 4.
Simply identify the y-intercept by looking at where the line crosses the y-axis. Or by looking at the equation (in y=mx+b form), the b term is the y-intercept.
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