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Amiraneli [1.4K]
3 years ago
9

explain why it is possible to draw more than two different rectangles with an area of 36 square units but it is not possible to

draw more than two different rectangles with an area of 15 square units. The sides of the rectangles are whole numbers
Mathematics
1 answer:
Len [333]3 years ago
5 0
15 only has 4 factors 1,3,5, and 15 so you can draw a rectangle that has dimensions 15 by 1 or 3 by 5. 36 has lots of factors:
1 and 36, 2 and 18, 3 and 12, 6 and 6, so you could draw a rectangle for each one of those factor pairs.
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Laura sells beaded necklaces each large necklace sells for $6.80 and each small necklace sells for $5.10 how much will she earn
Alex Ar [27]

Answer:

25.5

Step-by-step explanation:

3 large necklaces equals 20.4 plus 5.10 equals 25.5

8 0
3 years ago
The sum of Cathy's and Tony's ages is 65. Eight years ago, Cathy's age was 2/5 of Tony's age. How old are they now?
Viktor [21]
Let
x------> Cathy's<span> ages
</span>y------> Tony's ages

we know that
x+y=65-----> x=65-y-----> equation 1
y-8=(2/5)*(x-8)-----> equation 2

substitute equation 1 in equation 2
y-8=(2/5)*(65-y-8)---> y-8=22.8-0.4y----> y+0.4y=22.8+8
1.4y=30.8-----> y=22
x=65-y-----> x=65-22----> x=43

the answer is
Cathy's ages is 43 years 
Tony's ages is 22 years

7 0
3 years ago
Lila is building a slide for her kids. The ladder is 3 meters tall and the slide is 5 meters long. What is the distance between
lisov135 [29]

Answer:

Step-by-step explanation: For a problem like this, it’s best to use Pythagorean Theorem which is a^2+b^2=c^2 .

In this problem they gave us a and c already so we are trying to find b.

3^2+?=5^2

9+?=25

25-9=16

Find the square root of 16 which is 4

Answer: The distance between the ladder and the slide is 4 meters

7 0
3 years ago
Calculate the specific heat of a metal (in calories/gram-degree C) from the following data. A container made of the metal has a
Arisa [49]

Answer:

<h2>The specific heat of the metal is 0.274951 calories/gram-degree C.</h2>

Step-by-step explanation:

Let, the specific heat of the container is x calories/gram-degree C.

The container and water gains (18 - 15) = 3 degrees C.

Hence, the transfer of heat is 3(18.1\times1000\times1) + 3(3.77x\times1000).

The metal, which is dropped in the water, losses (164 - 18)= 144 degrees C.

Hence, the transfer of heat is 144\times 1.45\times1000x.

As per the given conditions,

3(18.1\times1000) + 3(3.77x\times1000) = 144\times1.45\times1000x\\54.3 + 11.31x = 208.8x\\197.49x = 54.3\\x = 0.274951.

6 0
3 years ago
Only 4 please i need it by tomorrow
seraphim [82]
No she is not correct she needs to go back to school and learn math 
8 0
2 years ago
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