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kogti [31]
2 years ago
5

Stacy and Neil painted 280 ft of their living room wall with 4/5 gallon of paint. How many square feet can they paint with 3 gal

lons of paint?
Mathematics
1 answer:
barxatty [35]2 years ago
6 0

Step-by-step explanation:

4/5 gallons for 280 ft² (the ² is missing in the question ...).

3 gallons would be 15/5.

so, what do I need to multiply 4 with to get 15 ?

4×x = 15

x = 15/4

multiplying now also 280 ft² with this factor gives us the answer :

280 × 15/4 = 70 × 15 = 1050 ft²

they can paint 1050 ft² with 3 gallons of paint.

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Please help! :)
Volgvan

Answer:

So the correct option is First one

i.e \dfrac{9\pi}{A}=\dfrac{90}{360}

Step-by-step explanation:

Given:

Area of Shaded part = 9 π square feet

To Find :

Area of Circle = ?

Solution:

90 degree center angle is equivalent to an area of 9 Π  square feet

So, 360 degree center is equivalent to area A which is the area of the complete circle.

So the Ratio will be

\dfrac{90}{9\pi} =\dfrac{360}{A}

Setting the given statements in proportion:

\dfrac{90}{9\pi} =\dfrac{360}{A}

On solving we get the required

\dfrac{9\pi}{A} =\dfrac{90}{360}

So the correct option is First one

i.e \dfrac{9\pi}{A}=\dfrac{90}{360}

Alternate Method:

Shaded part is of 90°

Area of Shaded part = 9 π square feet

And Full Circle is of 360° that is 4 sector of 90°

\textrm{Area of Circle}=4\times (Shaded\ part)

\textrm{Area of Circle}=4\times 9\pi

\textrm{Area of Circle}=36\pi

So the correct option is First one

i.e \dfrac{9\pi}{A}=\dfrac{90}{360}

On solving this we get

A=36\pi\ feet^{2}

8 0
3 years ago
Jose's gas tank is 1/5 full. After he buys 9 gallons of gas, it is 7/10 full. How many gallons can Jose's tank hold?
Anika [276]

Answer:

  • 18 gallons

Step-by-step explanation:

<u>Let the capacity of tank is x</u>

  • 1/5x + 9 = 7/10x
  • 2/10x + 9 = 7/10x
  • 5/10x = 9
  • 1/2x = 9
  • x = 18 gallons
5 0
3 years ago
Target buys video games for $25/game. They markup the price by 75%. How much do
AVprozaik [17]

9514 1404 393

Answer:

  $43.75

Step-by-step explanation:

The amount of the markup is ...

  $25 × 0.75 = $18.75

The final cost to the customer is ...

  selling price = purchase price + markup

  = $25.00 + 18.75 = $43.75

They charge customers $43.75 for a videogame.

3 0
3 years ago
Apply the equation found in question 1 to compute the time it would take to cook a 12-pound beef roast. from USAtestprep​
Advocard [28]

Step-by-step explanation:

Ermm you're gonna have to write the entire question here for assistance

7 0
3 years ago
A store pays $423 for a crystal vase and marks the price up by 46%. What is the amount of the mark-up?
jek_recluse [69]

Answer:

194.58$

Step-by-step explanation:

Have a great day! :)

6 0
3 years ago
Read 2 more answers
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