A 5-ounce can of tuna costs $0.90.A 12-ounce can of tuna cotst 2.40. which is the better buy

Answers

Answer 1

Answer: 0.90/5 = 18 cents per ounce

2.40/12 = 20 cents per ounce

The 12 ounce can because you get more for only two cents more

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Factor the polynomial below 20x^2-45

Answers

$20x^2-45=5(4x^2-9)=5[(2x)^2-3^2]=5(2x-3)(2x+3)\n\n--------------------------\n\nuse:a^2-b^2=(a-b)(a+b)$

$(a+b)(a-b)=a^2-b^2\n---------------------\n\n20x^2-45=5\cdot4x^2-5\cdot9=5\cdot(4x^2-9)=\n\n.\ \ \ \ \ \ \ \ \ \ \ \ =5\cdot[(2x)^2-3^2]=5\cdot(2x+3)(2x-3)$

Average weight in pounds of 1/8, 1/4, 3/8, 1/2

Answers

The answer to your question is 1 5/8 because you take the 1/4 times that by 2 for bith top and bottom and take the 1/2 and times that by 4 top and bottom, then you want to add all of them together.

The London Eye (a ferris wheel) makes one rotation in approximately 30 minutes. What is the measure of the angle (in degrees) that a cart (spoke on the wheel) will rotate in 12 minutes?

Answers

1 rotation = 360 degrees
It takes 30 minutes.
It rotates (360/30) = 12 degrees every minute.

In 12 minutes, 1 seat will rotate (12 x 12) = 144 degrees.

============================================

A slightly different way to do it:

1 rotation = 360 degrees
It takes 30 minutes.

12 minutes = (12/30) = 0.4 of a complete rotation.

0.4 of 360 degrees = (0.4 x 360) = 144 degrees

============================================

A slightly different way to do it:

Set up the proportion:

(30 minutes / 360 degrees) = (12 minutes / 'x' degrees)

Cross-multiply the proportion:

30 x degrees-minutes = (12 x 360) degree-minutes

Divide each side by '30 minutes':

'x' degrees = (12 x 360 degree minutes) / 30 minutes = 144 degrees

360/30=12 degrees per 1 minute
12minutes times 12 degrees equals 144 degrees.

6s-4=8\left(2+\dfrac14s\right)6s−4=8(2+ 4
1

s)

Can someone help me learn this. I dot understand how and im behind. Will give brainliest!

Answers

Answer:

s = 2

Step-by-step explanation:

6s - 4 = 8

Additive inverse of (-4) is 4. So, add 4 to both the sides

6s - 4 + 4 = 8 + 4

6s = 12

Now divide both the sides by 6.

$(6s)/(6)=(12)/(6)\n$

s = 2

Answer:

Step-by-step explanation:

just know its 5

Which equation could be used to solve the problem? Tony is on a train that travels 99 mi in 1 h.

At that rate, how many miles (d) will the train travel in 9 h ?

A.
d = 99 + 9

B.
d = 99 ÷ 9

C.
d = 9 ÷ 99

D.
d = 99 • 9

Answers

it is D you will have to Multiply because its say How many mile so thats how i find out

The equation is D. If the train goes 99 miles per 1 hour thats 99 multiplied by 1. But if you substitue the 9 in for the 1 then its 99 times 9:)

a clydesdale drinks about 120 gallons of water every 4 days at this rate about how many gallons of does a clydesdale drink in 28 days

Answers

the clydesdale drinks 840 Gallons of water in 28 days.

Since a clydesdale drinks 120 gallons every 4 days, u have to divide 28 by 4:
28÷4=7
Now u multiply 7 by 120 for da answer:
7(120)=840.
I hope this xplains it.

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