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3 years ago

Can someone help me please ASAP? Correct answer gets brainliest!! :)

Mathematics

1 answer:

Lesechka [4]3 years ago

6 0

Answer:

Blank 1: 6

Blank 2: 30

1/2 = 6/12 = 30/60

Blank 3: 30

1/4 = 3/12 = 15/60

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Jackson can lay 6000 ft² of tile in 3 h.

Juli2301 [7.4K]

Answer:

2000 ft^2/h

Step-by-step explanation: Because 6000 divided by 3 is 2000

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A scale model of the Vancouver Olympic cauldron is to be built in memory of the 2010 Olympics. If the scale to be used is 1:27,

timurjin [86]

Answer:

23/54 meters

Step-by-step explanation:

Assuming that the scale model is smaller, then the scale model should be 1/27th of the actual thing. Therefore:

11.5/27

= 23/54 meters tall

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3 years ago

A radio telescope array is in an unpopulated desert region. The array covers a rectangular area that is one fourth square kilome

kramer

Answer:

3 km

Step-by-step explanation:

The area of a rectangle is given by the formula ...

A = LW

Filling in the given information, we can solve for the length.

1/4 = L·(1/12)

Multiplying by 12, we see that ...

3 = L

The array is 3 kilometers long.

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3 years ago

How many factors does 144 have?<br> i need it fast pleaseeee

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3 years ago

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Two customers went to a post office to buy postcards and large envelopes. Each postcard

astraxan [27]

The right answer is Option A.

Step-by-step explanation:

Let,

x be the postcards

y be the large envelops

According to given statement;

14x+5y=12 Eqn 1

10x+15y=24.80 Eqn 2

Multiplying Eqn 1 by 3;

$3(14x+5y=12)\\42x+15y=36\ \ \ Eqn \ 3$

Subtracting Eqn 2 from Eqn 3;

$(42x+15y)-(10x+15y)=36-24.80\\42x+15y-10x-15y=11.20\\32x=11.20\\$

Dividing both sides by 32

$\frac{32x}{32}=\frac{11.20}{32}\\x=0.35$

Putting x=0.35 in Eqn 1;

$14(0.35)+5y=12\\4.90+5y=12\\5y=12-4.90\\5y=7.10$

Dividing both sides by 5

$\frac{5y}{5}=\frac{7.10}{5}\\y=1.42$

Therefore, one large envelope costs $1.42

The right answer is Option A.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago