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hodyreva [135]
4 years ago
12

SUPER EASY WILL GIVE BRAINLEIST IF DONE BEFORE 10 PM PLS HURRY. IF U HAVE TIME PLS HELP ME ON OTHER QUESTIONS THANK YOU <3

Mathematics
1 answer:
andrew11 [14]4 years ago
7 0

Answer:

1. new perimeter = 4 times the old perimeter

2. The area will go up by a factor of 16

3. The new area is 1/9 of the original area.

Step-by-step explanation:

1. side length1 = x

side length2 = y

2x + 2y = perimeter

2(4x) + 2(4)y = new perimeter

8x + 8y = new perimeter

new perimeter = 4 times the old perimeter

2. The area will go up by a factor of 16. This is because the area formula has them being multiplied together and thus it will make the area go up by that much.

3. Let the length of the rectangle be x

Let width of rectangle be y

Area of rectangle =  L*W

Now Each side length of the rectangle is multiplied by 1/3

So, new area =  (1/3)L * (1/3)W

=(1/9)LW

So, the new area is 1/9 of the original area.

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a baby weighed 7 pounds 7 ounces at birth and 8 1/8 pounds at her first chekup how many ounces had the baby gained
sineoko [7]
7 lbs 7 oz is a total of 119 oz
8 1/8 lbs is a total of 130 oz
So, the baby gained a total of 11 ounces.
6 0
3 years ago
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Find the balance of the account earning interest compound annually.<br> $7000 at 4% for 2 years
kogti [31]

9514 1404 393

Answer:

  $7571.20

Step-by-step explanation:

Each year, the balance is multiplied by 1+4% = 1.04. After 2 years, the balance is ...

  $7000 × 1.04 × 1.04 = $7571.20

_____

<em>Additional comment</em>

The repeated multiplication is usually indicated with an exponent:

  $7000×1.04²

3 0
3 years ago
A person bets 1 dollar to b dollars that he can draw two cards from an ordinary deck of cards without replacement and that they
sertanlavr [38]

Answer:

$3.25

Step-by-step explanation:

In an ordinary deck of cards, we will notice that there are 52 cards.

However, we have 4 suits and 13 cards in each one making a total of 52, right?.

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P(X) =\dfrac{ \bigg (^4_1 \bigg) \times \bigg ( ^{13}_{2}\bigg) }{ \bigg ( ^{52}_{2} \bigg)}

P(X) =\dfrac{  \dfrac{4!}{1!(4-1)!} \times \dfrac{13!}{2!(13-2)!}  }{ \dfrac{52!}{2!(52-2)!} }

P(X) =\dfrac{4}{17}

Given that; A person bets 1 dollar to b dollars;

To make the bet fair is;

\dfrac{4}{17}b - \dfrac{13}{17}(1) = 0

= \dfrac{4}{17}b = \dfrac{13}{17}

multiply both sides by 17

4b = 13

b = 13/4

b = 3.25

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8 0
3 years ago
Please help with this math question no one bothered to help me plzz :(
Pavel [41]

Answer:

202 answer

Step-by-step explanation:

divide and then multiply 1/2

5 0
3 years ago
Find the measure of each acute angle in a right triangle where the measure of one acute angle is 3 times the sum of the measure
luda_lava [24]
A right triangle has 1 90 degree angle and the interior angles must add to 180.

3(x+8)+x+90=180
3x+24+x+90=180
4x+114=180
4x=66
x= 16.5

Plug this value in to find the last angle
16.5+90+x=180
106.5+x=180
x=73.5

Final answer: 73.5 degrees and 16.5 degrees
3 0
4 years ago
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