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just olya [345]
3 years ago
10

Help please ???i really don't know this one

Mathematics
1 answer:
Andru [333]3 years ago
8 0
What grade are you in
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What is the answer to a chef needs to cook 9 potatoes.He has already cooked 7.If each potato takes 3 minutes to cook,how long wi
jok3333 [9.3K]

Answer:it will it take him 6 minutes to cook the rest.

Step-by-step explanation:

The chef needs to cook a total of 9 potatoes. He has already cooked 7 potatoes. That means that the number of uncooked potatoes left is total number of potatoes - number of cooked potatoes. It becomes

9-7 = 2 potatoes

If each potato takes 3 minutes to cook, this means that 2 potatoes will take 3 minutes × 2 j = 6 minutes

Since there are only 2 potatoes left uncooked, it will it take him 6 minutes to cook the rest.

4 0
3 years ago
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8c^3 d^2 divided 4cd^2
Lana71 [14]

Answer: 2c^2

Step by step explanation:

4 0
3 years ago
Which expression represents the surface are of the prism?<br> 4<br> 8<br> 7
Dmitry_Shevchenko [17]

Answer:

C

Step-by-step explanation:

One side;

7 x 8 = 56, the side parallel to it is also 56 as well, so 56(2).

Second(bottom) side;

8 x 4 = 32, the side parallel to it(the side above) is also 32 as well, so 32(2).

Third(front) side;

4 x 7 = 28, the side parallel to it(backside) is also 28 as well, so 28(2).

You add all those products to get the surface area:

<em>56(2) + 32(2) + 28(2)</em>

3 0
2 years ago
F(x)=9x+5, find f^-1(x).
lidiya [134]

Answer:

interchange the role of x and y

x=9y+5

x-5=9y

<u>x-5</u><u> </u>=y

9

so,f^-1(x)= <u>x-5</u>

<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>9

hope it helps.

<h3>stay safe healthy and happy.</h3>
4 0
3 years ago
What is 4/7 + 1 1/3?
jeka57 [31]

4/7 + 1 1/3

get a common denominator,21

4/7 * 3/3  + 1 1/3*7/7

12/21 + 1 7/21

1  19/21

5 0
3 years ago
Read 2 more answers
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