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3 years ago

Three cans of tuna costs $1.50. what is the cost of one can of tuna. what is being compared

Mathematics

1 answer:

Aloiza [94]3 years ago

8 0

3 cans = $1.50

1.50
------- = 1 can
3 cans

1.50
------- = .50
3

1 can = $.50

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What is the slope of the line y=5-4x ?<br>Show your work

garri49 [273]

Answer:

-4

Step-by-step explanation:

The equation is in slope-intercept format, y=mx+b. The coefficient in front of the x is the slope as represented by the letter m.

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2 years ago

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A princess is standing 38 feet from the base of a 217 foot tall tower. What is the angle of elevation from him to the ogre who h

joja [24]

Answer:

Angle of elevation = 80°

Step-by-step explanation:

A princess is standing 38 feet from the base of a 217 foot tall tower. What is the angle of elevation from him to the ogre who has his princess held captive?

To solve for angle of elevation, we use the Trigonometric function of Tangent.

tan θ = Opposite side/Adjacent side

Opposite side = Height of the tower = 217 ft

Adjacent side = 38ft

tan θ = 217/38

tan θ = 5.6315789474

θ = arc tan 5.6315789474

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3 years ago

Which shows the correct method for solving the equation below?<br> 1/3 (y-9) =3

lyudmila [28]

Answer:

$y=18$

Step-by-step explanation:

we have

$\frac{1}{3}(y-9)=3$

Multiply by $3$ both sides

$3*(\frac{1}{3}(y-9))=3*3$

$(y-9)=9$

Adds $9$ both sides

$(y-9)+9=9+9$

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2 years ago

May I know the values of x and y of the following equation?<br>(5-3i)(x-yi) = 3(x+2yi)+1-2i

gogolik [260]

Answer:

(x, y) = (17/31, 1/31)

Step-by-step explanation:

Simplify the given equation, then equate real parts and equate imaginary parts. This will give you two equations in the two unknowns.

<h3>simplify</h3>

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5x -5yi -3xi +3yi² = 3x +6yi +1 -2i

(5x -3y) +i(-5y -3x) = (3x +1) +i(6y -2)

<h3>equate real, imaginary parts</h3>

This resolves to the two equations ...

5x -3y = 3x +1
-5y -3x = 6y -2

<h3>solve the system</h3>

Putting these equations into general form gives ...

2x -3y -1 = 0

3x +11y -2 = 0

Using the "cross multiplication method" to solve these equations, we get ...

x = ((-3)(-2) -(11)(-1))/(2(11) -3(-3)) = 17/31

y = ((-1)(3) -(-2)(2))/31 = 1/31

The values of x and y that satisfy this equation are ...

(x, y) = (17/31, 1/31)

_____

You can read more about the cross multiplication method here.

brainly.com/question/26397343

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2 years ago

A model airplane flew a distance of 330 ft in 15 seconds.

JulsSmile [24]

Okay. So we will solve this by seeing how many feet is in one second. The model airplane flies 22 feet in one second. I can tell you that the model airplane does fly 1,320 ft per minute, because 22 * 60 equals 1,320, not 1,056 ft per minute. It travels 15 miles an hour, because there are 5,280 ft in one mile. When you multiply 1,320 by 60, you get 79,200 ft. Divide that number by 5,280 and you get 15 miles, not 12 miles per hour. All of the unit rates equivalent to the speed are 15 miles an hour and 1,320 ft per minute.

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3 years ago