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finlep [7]
3 years ago
14

Mary bought a box of 30 cookies , 10% of those cookies are chocolate chip cookies. How many chocolate chip cookies are in the bo

x?
Mathematics
2 answers:
MatroZZZ [7]3 years ago
4 0
The answer would be 3 chocolate chip cookies are in the box.
vaieri [72.5K]3 years ago
3 0
There are 3 chocolate cookies in the box... i think :P
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You throw a ball into the air from a height of 5 feet with an
Bas_tet [7]
Answer: 21 ft

X = -32/2(-16) = 1 = time

-16(1)^2 + 32(1) + 5 = 21 ft!
3 0
3 years ago
The linear equation 3x – 11y = 10 has
storchak [24]

Answer:

Correct option: c) infinitely many solutions

Step-by-step explanation:

We have an equation with two variables, so as we have a system with less equations (just one) than variables (two), we have an infinite number of solutions.

To find some solutions, we can choose values for x and then just calculate the value of y:

x = 0:

-11y = 10 -> y = -10/11

x = 1:

3 - 11y = 10 -> y = -7/11

x = 2:

6 - 11y = 10 -> y = -4/11

And so on.

So the correct option is c): infinitely many solutions

7 0
4 years ago
In a given survey, 9 people say their favorite color is pink. The number represented 45% of the total people. How many people to
kicyunya [14]

Answer:

405

Step-by-step explanation:

1% - 9 people

45% - 9 × 45 = 405 people

6 0
3 years ago
Read 2 more answers
NEED HELP ASAP!! Solve for m
kirill115 [55]

Angle B = 56.309932474020215

This is through using a trigonometry calculator I forgot how to set it up tbh.

Hope this helps ;)

For extra info Angle C = 33.690067525979785.

They add up to 90 which added with the right angle of 90 means the interior angles add to 180 meaning it is in fact correct because a triangle is always 180 inside.

4 0
4 years ago
The power generated by an electrical circuit (in watts) as a function of its current x xx (in amperes) is modeled by P ( x ) = −
marysya [2.9K]

Given:

The power generated by an electrical circuit (in watts) as a function of its current x (in amperes) is modeled by

P(x)=-15x(x-8)

To find:

The current which will produce the maximum power.

Solution:

We have,

P(x)=-15x(x-8)

P(x)=-15x^2+120x

Differentiate with respect to x.

P'(x)=-15(2x)+120(1)

P'(x)=-30x+120      ...(i)

To find the extreme point equate P'(x)=0.

-30x+120=0

-30x=-120

Divide both sides by -30.

x=4

Differentiate (i) with respect to x.

P'(x)=-30(1)+(0)

P'(x)=-30 (Maximum)

It means, the given function is maximum at x=4.

Therefore, the current of 4 amperes will produce the maximum power.

7 0
4 years ago
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