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bixtya [17]
3 years ago
15

What is the length and width of a rectangle if your area is 40 inches and you perimeter is 26 inches

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
8 0
<span><span>l=</span><span>8in or 5in</span></span>
<span>Perimeter: 26 in
Area:40 in'2
</span>
mylen [45]3 years ago
7 0
We can write equations, using x and y as the length and width:

xy=40
2x+2y=26

Divide the second equation by two to get:
xy=40
x+y=13

Thus, x=13-y.

We now have (13-x)x=40, so
13x-x^2=40
and x^2-13x+40=0

Factoring, we get:
(x-5)(x-8)=0

So, x can be either 5 or 8 (and y will be the other option).  Thus, the length and width are 8 and 5.
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Anthony eats 2 alices of a large 18 inch pizza. Lucy eats 4 lices of a 12 inch pizza. Both pizzas are cut into 8 slices. Lucy cl
Vlad [161]

Answer: Lucy ate more pizzas because he ate more inches of pizza than Anthony.

Step-by-step explanation:

Anthony eats 2 slices of a large 18 inch pizza. Total number of slice in the 18 inch pizza is 8

The size of one slice in inches would be total length of pizza / number of slices. It becomes

18 / 8 = 2.25 inches

Anthony ate 2 ×2.25 = 4.5 inches of pizza.

Lucy eats 4 slices of a 12 inch pizza.

Total number of slice in the 12inch pizza is 8

The size of one slice in inches would be total length of pizza / number of slices. It becomes

12 / 8 = 1.5 inches

Lucy ate 4 × 1.5 = 6 inches of pizza.

Lucy ate more pizzas because he ate more inches of pizza than Anthony.

5 0
3 years ago
Is the following UPC code valid? 375407370090. PLEASE SHOW OR EXPLAIN!!!
MAXImum [283]

Answer:

The UPC is not valid..

Step-by-step explanation:

The Universal Price Code is represented in the form of bars which is scanned when we purchase something.

The last digit of the UPC is the check digit.

Give UPC = 375407370090

To check whether the UPC is valid or not.

Step 1:

Add the digits at odd positions.

3 + 5 + 0 +3 + 0 + 9 = 20

Step 2:

Multiply the number obtained in step 1 by 3

20*3 = 60

Step 3:

The digits at even positions have to be added. The last digit has to be ignored as it is a check digit.

7 + 4 + 7 +7 +0 = 25

Step 4:

Add the numbers obtained in Step 2 and step 3

60 + 25 = 85

Step 5:

The number obtained in step 5 is subtracted from the next multiple of 10.

In the above case,

85 will be subtracted from 90.

90 - 85 = 5

For a valid UPC, the answer to step 5 is equal to the last digit of UPC.

In the above case, the answer is 5 which is not equal to zero.

So, the UPC is not Valid.

4 0
3 years ago
A kangaroo hooped 3,520 yards to the lake with her baby in her pouch. She hopped the remaining 5,280 yard without her baby in he
Akimi4 [234]

Answer:

5 miles

Step-by-step explanation:

since she hopped in yards you must mulitiply both numbers 3520 and 5280 by 3 since there are three feet in a yard. then add together then divide the sum by 5280 since a mile is 5280 feet.

3520 X 3 = 10560

5280 X 3 = 15840

10560 + 15840 = 26400

26400/ 5280 = 5

5 0
2 years ago
Add 3 to the product of 12 and the sum of 14 and 19
Pavel [41]

Answer:

399

Step-by-step explanation:

5 0
3 years ago
A square has an area of 61 square inches. Which choice below is the best estimate for the side length of the square?​
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Answer:

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