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.

Related Questions

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

Liza types 180 words in 3 minutes. At
that rate, how many minutes does it
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

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

Median=2.05 (In words: two && 5/100)

create a equation to solve for the mid segment with bases x-6 and 2x-9

Answers

Answer:

Step-by-step explanation:

If AD=DB and AE=EC,

then DE¯¯¯¯¯∥BC¯¯¯¯¯ and DE=12BC .

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)}

Answers

Answer:

the correct answer is option ( C )

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

Answers

Answer: 112 rows

2800/25 spaces = 112 rows

please help with this math question

Answers

Answer:

z=2.61

Step-by-step explanation:

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

please provide small explanation

Answers

Answer:

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.

So A=1/2*6*4=12

1/ 99 to 4 significant figures

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 ...

0.01010

d/−7 ≤ −6 pls help :)

Answers

Answer:

D > -42

Step-by-step explanation:

7 is a factor of
a 28
b 16
c 11
d 4

Answers

Answer:

a) 28

Step-by-step explanation:

the answer should be a I think

1/3 + 3/5 in fraction form

Answers

Solution: 1/3 + 3/5

Take the LCM of 3 and 5 is 15.

⇛(5+9)/15

⇛14/15 in fractional form.

also read similar questions: What is 3/7 plus 3/5 in fraction form?...

https://brainly.com/question/3442261?referrer

-1 5/6 ÷ -3 1/3 in fraction form...

https://brainly.com/question/15930246?referrer

Answer:

14/15

Step-by-step explanation:

When you simplify a fraction, you have to divide or multiply the numerator(the top number) and the denominator(the bottom number) by the same number. In order to add or subtract two fractions, both have to have the same denominator. The LCD, or least common denominator, of 3 and 5 is 15. 15÷3=5, so you multiply 1/3 by 5 and and 5 to get 5/15. 15÷3=5, so you multiply 3/5 by 3 and 3 to get 9/15. The denominator stays the same when adding or subtracting fractions, and 5+9=14, so the answer is 14/15.

find.

number y if 2/5of y is 22

Answers

Answer
y=55

Reason
If 2/5y =22,
then 1/5y=11.
11 x 5 =55

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

Answers

Answer:

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!

Solve the following systems of equations by substitution or graphing.

Answers

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

Distance between adjacent antipodes is 20 cm

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

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

=20cm

\lambda =40cmλ=40cm

We have to find the speed of the wave in the string

Speed is equal to v=\lambda f=0.04\times 80=3.2m/secv=λf=0.04×80=3.2m/sec

So speed of the wave in the string will be 3.2 m/sec

!!!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

What is the slope of the line on the graph?

Enter your answer in the box.

Answers

Answer:

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Answers

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

x = -2 ⇒ [(-2)⁵ + 32] = (-2+2)⁵ ⇒ 0 = 0

So: (x⁵ + 32) = (x - 2)⁵ if x = -2 or x = 0

Ok done. Thank to me :>

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Answers

h(x)=3x−3, find h(3)

h(3)= 3(3)−3

= 9-3

= 6

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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