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3 years ago

Plz help i dont know the answer

Mathematics

1 answer:

Yuliya22 [10]3 years ago

4 0

Answer:

Im not 100 percent sure but I think you have to do this

Step-by-step explanation:

Add all numbers together to find total students

Then add the students in Chemistry and Physics and both together

Then find what that number is in percent to the total students

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130% of the sum of 7 and a number n is equal to 91.

dybincka [34]

$130\%(7+n)=91 \\
1.3(7+n)=91 \\
7+n=\frac{91}{1.3} \\
7+n=70 \\
n=70-7 \\
n=63$

4 0

3 years ago

Read 2 more answers

PLEASE HELP! 20 POINTS

OLEGan [10]

Answer:

1,215 i think please be right

7 0

3 years ago

The product-3 and t is greater than 11

PSYCHO15rus [73]

Answer:

i am pretty sure its 8

Step-by-step explanation:

because a negative plus a positive = wichever one is bighger and 8 is bigger than 3 so 11 is positive. 8 +3 = 11

6 0

4 years ago

IM CONFUSED PLEASE HELP! THANK YOU!

11111nata11111 [884]

Answer:

Hope This Help If Not Sorry

Step-by-step explanation:

minimum In mathematical analysis, the maxima and minima of a function, known collectively as extrema, are the largest and smallest value of the function, either within a given range, or on the entire domain.

7 0

3 years ago

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Find the value of the given expression.<br> (see the image)

Andrews [41]

Answer:

d. 14

Step-by-step explanation:

3(2) = 3 × 2 = 6
Plug 6 in: 12 + {10 ÷ [11 - 6]}
11 - 6 = 5
Plug 5 in: 12 + {10 ÷ 5}
10 ÷ 5 = 2
Plug 2 in: 12 + 2
12 + 2 = 14

I hope this helps!

7 0

3 years ago