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Karolina [17]
3 years ago
10

The doctor recommended that Matt decrease the number of calories he consumed from 2500 to 1800 by what percent did the number of

calories decrease
Mathematics
1 answer:
never [62]3 years ago
3 0

Answer: 28%

Step-by-step explanation:

1800/2500 = 0.72

0.72 = 72%

100% - 72% =  28%

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Please help, thank you
solmaris [256]

Answer:

1.

8x + 6y = 28

9x + 3y = 39

Set to equal y.

8x + 6y = 28

6y = -8x + 28

y = -8/6x + 28/6

y = -4/3x + 14/3

9x + 3y = 39

3y = -9x + 39

y = -9/3x + 39/3

y = -3x + 13

Set equal to each other.

-4/3x + 14/3 = -3x + 13

Combine like terms.

5/3x = 25/3

Multiply by 3/5

x = 5

Plug x in.

y = -3(5) + 13

y = -15 + 13

y = -2

(5, -2)

2.

-2x - 9y = -3

-7x - 9y= -33

Set equal to y.

-2x - 9y = -3

-9y = 2x - 3

y = -2/9x + 3/9

y = -2/9x + 1/3

-7x - 9y= -33

-9y = 7x - 33

y = -7/9x + 33/9

y = -7/9x + 11/3

Set equal to each other

-2/9x + 1/3 = -2/9x + 1/3

0 = 0

infinitely many solutions

8 0
2 years ago
A local grocery store received 6 5/6 crates of strawberries. the produce workers had to throw away 1 7/8 crates of strawberries
BigorU [14]

Answer:

D. 4 23/24

Step-by-step explanation:

1 7/8 = 1 21/24

6 5/6 = 6 20/24

6 - 1 = 5

20 - 21 = -1

5 - 1/24 = 4 23/24

3 0
2 years ago
Please help! Best answer will get brainliest!
marysya [2.9K]
The answer is -110.
8 0
2 years ago
A) Translate into proposition using suitable logical operators. Clearly mention propositions as
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3 years ago
Time Remaining
ExtremeBDS [4]
The answer for this question is going to be: Both x is positive and y is negative. 
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3 years ago
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