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aleksandr82 [10.1K]
3 years ago
6

GIVING BRAINLIEST -23 points- URGENT HELP ME PLEASE!!!

Mathematics
1 answer:
lana66690 [7]3 years ago
4 0

Answer:

The answer is option c....

Mark as brainliest

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Which of the following examples have a constant rate of change?
Paladinen [302]

Answer:

B/second option

Step-by-step explanation:

The first option is wrong because you make 30 meatballs in 30 mins but then 30 meatballs in 20 mins. If it was constant then in 20 mins you make less meatballs.

The last option is wrong because if bacteria triples, then that is exponential, not constant change.

Only the middle option makes sense. The rate of change is $35 for each hour!

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8 0
3 years ago
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Leticia simplified an expression. Her work is shown below.
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Step 2, she didn't multiply 8 by 0.75.

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A geologist visits 40 volcanoes in Alaska and California. 15% of the volcanoes are in California.
kotegsom [21]

Answer:

<h2>Most explained:</h2>

40% = 100%

15 = (100% - 15% = 85%) 85% in Alaska

California = 15% of 40 = (0.15 x 40) = 6

Alaska = 85% of 40 = (0.85 x 40) = 34

<h2>The simple way (or the way i found it simple):</h2>

<h3>40 - 15 = 34</h3><h3>15% of 40 = 6</h3>

<h3>(I found the simple way after i solve the first way)</h3>

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3 0
3 years ago
Solve the system of linear equations given below.
charle [14.2K]

Answer: C

Steps:  4x + y = -4,    x + y = 2

Isolate the x for (x + y = 2):       x = 2 - y

Plug the value of x into the other equation:   4(2 - y) + y = -4

Simplify: -4y + 8 + y = -4

Combine like variables (letters): -4y + y = -3y

So -3y + 8  = -4

Subtract eight from both sides: -3y + 8 - 8 = -4 - 8

-3y = -12

Divide both sides by negative three: -3y ÷ -3  =  -12 ÷ -3

Simplify: y = 4

Plug the value of y into one of the original equations (I'll use  x + y = 2):  

So x + 4 = 2

Isolate the x variable: x = -2

8 0
3 years ago
PLEASE HELP THIS IS DUE TODAY EXPLAIN IF YOU CAN OR EXPLAIN IF YOU WANT.
zysi [14]

Answer:

2.1.25

Step-by-step explanation:

2: 1.25

3:125.0

5 0
3 years ago
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