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fenix001 [56]
3 years ago
6

The sum of two numbers is 40 and their difference is 6.5 what is their product

Mathematics
1 answer:
Klio2033 [76]3 years ago
3 0
Let x = first number, and y = second number. 
x + y = 40 (1)
x - y = 6.5 (2)

Rearrange (2) 
y = x - 6.5 (3)

Sub (3) in (1)
x + (x - 6.5) = 40 
2x - 6.5 = 40
2x = 33.5 
x = 16.75 (4)

Sub (4) in (1) 
16.75 + y =40
y = 23.25 

x * y = 16.75 * 13.25 = 221.9375

The product is 221.9375







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aev [14]

Answer:

CAn i have help and i will help you

Step-by-step explanation:

What does negative 2 over 3 > −1 indicate about the positions of negative 2 over 3 and −1 on the number line?

negative 2 over 3 is located to the right of −1

negative 2 over 3 is located on the left of −1

negative 2 over 3 is located on the right of 0, and −1 is located on the left of 0

negative 2 over 3 is located on the left of 0, and −1 is located on the right of 0

Question 2(Multiple Choice Worth 4 points)

(03.05)

Which set of rational numbers is arranged from least to greatest?

1 over 5, −1.4, negative 1 over 2, 3

3, negative 1 over 2, −1.4, 1 over 5

3, 1 over 5, −1.4, negative 1 over 2

−1.4, negative 1 over 2, 1 over 5, 3

Question 3(Multiple Choice Worth 4 points)

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Based on the graph, which inequality is correct for a number that is to the right of -4?

A number line is shown from negative 8 to 8 at increments of 1. A circle is shown at negative 4. The entire portion of the number line to the right of negative 4 is shaded.

2 < −4

−4 > −3

1 < −4

2 > −4

Question 4(Multiple Choice Worth 4 points)

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A girl's feet are negative 2 over 4 yards from the surface of a pool. A boy's feet are negative 3 over 4 yards from the surface of the pool. Determine whose feet are closer to the surface.

The girl's feet are closer to the surface of the pool because negative 2 over 4 > negative 3 over 4.

The boy's feet are closer to the surface of the pool because negative 2 over 4 > negative 3 over 4.

The girl's feet are closer to the surface of the pool because negative 2 over 4 < negative 3 over 4.

The boy's feet are closer to the surface of the pool because negative 2 over 4 < negative 3 over 4.

Question 5(Multiple Choice Worth 4 points)

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Which inequality best represents that ice cream at −2°C is cooler than ice cream at 4°C?

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5 0
3 years ago
The first choice box options are: about the same: much greater for conference a than b: much greater for conference b than a.
marysya [2.9K]
First option: About the same

Second option: Greater for conference A than B

Hope it helps!
3 0
3 years ago
34699 to nearest ten thousand
xz_007 [3.2K]

Ones place: 9

Tens place: 9

Hundreds place: 6

Thousands place: 4

Ten thousands place: 3

Which is 34,699

Now that we know 3 is in the ten thousand's place.

So then go from 3, and jump too 4. If the number is higher then 5, the 3 would become a 4. If the number is lower then 5, 4 would become a 0 and so will the rest of the number's too the right.

34,699 ---> 30,000

That being said, the answer is 30,000!

I hope this help's! :)

-LizzyIsTheQueen

8 0
3 years ago
Help help help help math
balu736 [363]

Answer:

A = 192

Step-by-step explanation:

r = 16/2 = 8

A = 3x(8)^2

8^2 = 64

A = 3 x 64 = 192

4 0
2 years ago
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PLS HELP TAKIN A FINAL WILL MARK BRAINLIST 75 PTS
Gwar [14]

Answer:

Always

Step-by-step explanation:

Anything to the power 0 is 1

7 0
3 years ago
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