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ELEN [110]
3 years ago
10

What is the value of 3x+3y?

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
7 0

Answer:

3(x+y)

Step-by-step explanation

this is the right answer

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Create and solve a system of equations for the following scenario: Luke and Leia are selling hot dogs and hamburgers at a minor
mixas84 [53]

So x + y = 45, and 4x + 5y = 195. Get y by itself. Subtract x from both sides in the first equation to get y = 45 -x, and subtract 4x from the second equation to get 5y = 195 - 4x. Divide by 5 to both sides to get y = 39 - 4/5x. 39 - 4/5x = 45 - x. Add x to both sides to get 39 - 1/5x = 45. Subtract 39 from both sides to get -1/5x = 6. Divide by -1/5 to get x = -30, or 30. In the first equation, do 30 + y = 45. Subtract 30 from both sides to get y = 15. Check. 4(30) + 15(5) = 195, or 120 + 75 = 195.


5 0
3 years ago
5. The rectangular pool has an area of 520 square feet. The length of 3
erastovalidia [21]

Answer:

z*(z - 3) = 520

Step-by-step explanation:

Use the following representations:

Width:  W  

Length:  L = W + 3, or W = L - 3

Area = L*W = L*(L - 3) = 520

Equation b) is the correct one:  z*(z - 3) = 520

4 0
3 years ago
Tyra opened a new bag of birdseed and filled 3 bird feeders. She put 2,000 grams of birdseed in each feeder. How much birdseed d
balandron [24]
Tyra used 6 kilograms total to fill up all bird feeders.
8 0
2 years ago
Read 2 more answers
Helppp me please!!!!
Anton [14]
A. It is 176^2 or 30976 or 3.0976 x 10^4 whatever your prefer

B. 972

C. It is 0.00548697 or 4/729 or (2/27)^2 whatever your prefer

D. It is -16 x 20^4 or -2560000 whatever your prefer

E. x^4 y^4

F. h^10 k^6

G. m^11 n^15

H. b^2 d^6
....,,,,,,, you welcome !!!!!! :)
3 0
3 years ago
Who feels to talk
zubka84 [21]

Answer:

I gotcu

The answer is 30.25

Step-by-step explanation:

5.5 divided by 4 equals 1.375

22 times 1.375 equals 30.25

8 0
3 years ago
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