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evablogger [386]
3 years ago
14

How many times greater is 3400 than 340

Mathematics
2 answers:
seraphim [82]3 years ago
5 0
Its greater by 100? idk xD im sleepy right now.
Lelu [443]3 years ago
3 0
3400 is 10 times greater than 340 because if you divide 3400 by 10, you will get 340. Letting you know that 3400 is 10(ten) times greater than 340.
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Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the sq
stiv31 [10]

Answer:

18

Step-by-step explanation:

Remark

This is one of those questions that can throw you. The problem is that do you include the original rectangle or not. The way it is written it sounds like you shouldn't

However if you don't the question gives you 2 complex answers. (answers with the sqrt( - 1) in them.

Solution

Let the width = x

Let the length = x + 5

Area of the rectangle: L * w = x * (x + 5)

Area of the smaller squares (there are 2)

Area = 2*s^2

x = s

Area = 2 * x^2

Area of the larger squares = 2 * (x+5)^2

Total Area

x*(x + 5) + 2x^2 + 2(x + 5)^2 = 120                 Expand

x^2 + 5x + 2x^2 + 2(x^2 + 10x + 25) = 120     Remove the brackets

x^2 + 5x + 2x^2 + 2x^2 + 20x + 50 = 120      collect the like terms on the left

5x^2 + 25x +  50 = 120                                   Subtract 120 from both sides.

5x^2 + 25x - 70 = 0                                         Divide through by 5

x^2 + 5x - 14 = 0                                               Factor

(x + 7)(x - 2) = 0                                                 x + 7 has no meaning  

x - 2 =  0

x = 2                                                              

Perimeter

P = 2*w + 2*L

w = 2

L = 2 + 5

L = 7

P = 2*2 + 2 * 7

P = 4 + 14

P = 18

8 0
3 years ago
the price of an item has been reduced by 40% the original price was $15 what is the price of the item now​
harkovskaia [24]
This answer would be 21 because you’d just do 15 increased by 40% which gave me 21
3 0
3 years ago
Which best describes binary numbers ?
BlackZzzverrR [31]

Answer:

Most likely it's B because binary numbers are only 0 and 1 which are two numbers

4 0
2 years ago
Before a century plant dies, a tall flower stem grows from its center the flower stem grows for only two months to reach 40% of
postnew [5]
50 ft because you times 20 by 40 then you divide by 100 because that is the total percent
5 0
3 years ago
Ellen flipped a coin 80 times. The coin landed heads up 44 times and tails up 36 times. Compare the theoretical and experimental
devlian [24]

Given:

Ellen flipped a coin 80 times. The coin landed heads up 44 times and tails up 36 times.

To find:

The theoretical and experimental probabilities of the coin landing tails up and compare them.

Solution:

We know that, the coin landed either heads up or tails up. So, the theoretical probabilities of the coin landing tails up is

P(T)=\dfrac{Tails}{Total}

P(T)=\dfrac{1}{2}

P(T)=0.5

Ellen flipped a coin 80 times. The coin landed heads up 44 times and tails up 36 times.

Total = 80

Tails =36

The experimental probabilities of the coin landing tails up is

P(T)=\dfrac{Tails}{Total}

P(T)=\dfrac{36}{80}

P(T)=0.45

Therefore, the theoretical and experimental probabilities of the coin landing tails up are 0.5 and 0.45 respectively. The theoretical probability is greater than the experimental probability.

6 0
2 years ago
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