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Mrac [35]
3 years ago
8

Help me ASAP please

Mathematics
2 answers:
34kurt3 years ago
7 0
I think it’s C but I’m not sure
dmitriy555 [2]3 years ago
6 0
Sorry I don’t think I know that
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Wich expression equivalent to 4 (x + 1) +7 (x+3)
dangina [55]

Answer:

11x + 25

Step-by-step explanation:

When we distribute everything, we get 4x + 4 + 7x + 21. Adding the like terms, we get 11x + 25. Hope this helps!

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3 years ago
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The temperature increased by
lorasvet [3.4K]

Answer:

t+23=36

Step-by-step explanation:

23 is the increase increment in this situation. Then, the final temperature is 36, so you put that on the other side of the equation. Finally, you would be adding t with 23 cause of the temperature increase.

4 0
3 years ago
A chef is going to use a mixture two different brands of Italian dressing the first spring and days 5% vinegar the second brain
Temka [501]

I guess the chef is making the mixture for the sheriff... Let <em>x</em> be the amount of dressing with 5% vinegar that is required, and <em>y</em> the amount of 15% vinegar dressing (both amounts in mL).

The sheriff wants 390 mL of the mixed dressing, so that

<em>x</em> + <em>y</em> = 390

<em>x</em> mL of the 5% dressing contains 0.05<em>x</em> mL of vinegar, while <em>y</em> mL of the 15% dressing contains 0.15<em>y</em> mL of vinegar. The resulting mixture should have a concentration of 9% vinegar, so that it contains 0.09 (390 mL) = 35.1 mL of vinegar. This means

0.05<em>x</em> + 0.15<em>y</em> = 35.1

Solve for <em>x</em> and <em>y</em> :

<em>y</em> = 390 - <em>x</em>

0.05<em>x</em> + 0.15 (390 - <em>x</em>) = 35.1

0.05<em>x</em> + 58.5 - 0.15<em>x</em> = 35.1

23.4 = 0.10<em>x</em>

<em>x</em> = 234

<em>y</em> = 156

7 0
2 years ago
Which quadratic function is represented by the graph?
sergey [27]

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Step-by-step explanation:

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3 years ago
BRAINLY GET READY! I HAVE EXAMS NEXT WEEK! I WILL NEED HELP PLEASEEEE!!!. MATH BIOLOGY ELA CRIMINOLOGY!!!!!!​
Alexxandr [17]

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ready

Step-by-step explanation:

8 0
3 years ago
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