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3 years ago

Margo’s dog, named Todd, weighed 120 pounds last year. She now weighs 180 pounds. What is the percent of change

Mathematics

2 answers:

alexira [117]3 years ago

5 0

Answer:

Step-by-step explanation:

$\Delta \%=100\left(\frac{final-initial}{initial}\right)\\ \\ \Delta \%=100\left(\frac{180-120}{120}\right)\\ \\ \Delta \%=100\left(\frac{60}{120}\right)=50\%$

elixir [45]3 years ago

3 0

Answer:

50%

Step-by-step explanation:

the increase is 60 so divide that by the original number; 60/120=0.5

now we have to change the decimal to a percent. multiply by 100 to do that and we get 50%.

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A person can pay $ 27 for a membership to the history museum and then go to the museum for just $1 per visit. What is the maximu

Alenkasestr [34]

Answer:

2 visits

Step-by-step explanation:

Step one:

cost for membership=$27

cost per visit= $1

let the number of visit be x

the total is expressed as

y=mx+c

total =x+27

Step two:

given a total of $29

the number of visits can be found as

29=x+27

29-27=x

x=2

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3 years ago

A farmer takes 8 days to cultivate a plot of land i ha in area. What area

Kaylis [27]

More information is needed

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4 years ago

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A computer uses the function f(h)= 50h + 75 to calculate the total repair bill, f(h), for h number of hours worked. Find h if f(

lyudmila [28]

F(h)=50(h)+75
50(4)+75
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4 years ago

Trigonometry, NEED HELP ASAP

Radda [10]

Answer:

$sin(\theta_1) = \dfrac{\sqrt{357} }{29}$

Step-by-step explanation:

The parameters of the angle θ₁ are;

The location of θ₁ = Quadrant II

cos(θ₁) = -22/29

We note the following;

1) The sine of an angle in quadrant II is positive

2) The cosine of an angle in quadrant II is negative,

2) The cos of an angle = The adjacent leg length to the reference angle divided by the hypotenuse length of a right triangle

3) With regards to the right triangle for finding cos(θ₁)

The adjacent leg length = -22 (The x-axis is negative in quadrant II)

The hypotenuse length = 29

The negative sign is obtained from the value of cosine in the quadrant

Therefore, by Pythagoras' theorem, for a right triangle, we have;

The opposite leg length to 'θ₁' = √(29² - 22²) = √(357)

$sin\angle X = \dfrac{Opposite \ leg \ length}{Hypotenuse \ length}$

Therefore, we have;

$sin(\theta_1) = \dfrac{\sqrt{357} }{29}$ .

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3 years ago

The table shows a linear function. <br><br> Which equation represents the function.

mote1985 [20]

Answer:

$\large\boxed{f(x)=\dfrac{3}{2}x-1}$

Step-by-step explanation:

$\text{The slope-intercept formula:}\\\\y=mx+b\\\\m\ -\ slope\\b\ -\ y-intercept\\\\\text{The formula of a slope:}\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{From the table we hve two points (0, -1) and (2, 2). Substitute:}\\\\m=\dfrac{2-(-1)}{2-0}=\dfrac{3}{2}$

$\text{Therefore the equation is}\ f(x)=\dfrac{3}{2}x-1\\\\\text{Check for the point (4, 5):}\\\\f(4)=\dfrac{3}{2}(4)-1=(3)(2)-1=6-1=5\qquad\ CORRECT$

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3 years ago