# Help please! I’ll give brainliest!

Step-by-step explanation:

## Related Questions

Which number's estimate written as a single digit times a power of 10 will have a negative exponent?

105 i hope this helps if not then i’m sorry

Find the real value of x,y if

(1/(x^2+y^2))+(1/(x+yi))=1

It sounds like are supposed to be real numbers. If so, then we can do the following.

Multiply the second term's numerator and denominator by the conjugate of the denominator:

Since the left hand side is equal to 1, this means it has no imaginary part, so that . Then the real parts of both sides of the equation give us

13. The volume of a gas is inversely proportional to the pressure of the gas. If a balloon is filled with 210 cubic inches of a gas at a pressure of 14 pounds per square inch, find the new pressure of the gas if the volume is decreased to 70 cubic inches.

4.67 pounds

Step-by-step explanation:

In order to find the answer we need to use the following formula:

V=k/P where:

V=volume

P=pressure of the gas

k= constant of proportionality

The above equation establishes that the volume is inversely proportional to the pressure of the gas.

Now, the problem gave us two situations, which are:

For a time 1, we have V1=210 cubic inches and P1=14 pounds, using the equation we have:

V1=k/P1

210 cubic inches=k*(14 pounds) which can be written as:

(210 cubic inches)/(14 pounds)=k

For time 2, we have V2=70 cubic inches and P2=P2 using the equation we have:

V2=k/P2

70 cubic inches=k*P2, using 'k-value' from above:

(70 cubic inches)=[(210 cubic inches)/(14 pounds)]*P2

(70 cubic inches)*(14 pounds)/(210 cubic inches)=P2

4.67 pounds = P2

A is 30% of b. b is 90% of c. what % of c is a

A = 30% of B = 0.3B
B = 90% of C = 0.9C

A = 0.3(0.9C) = 0.27C = 27% of C

the width of a rectangle is fixed at 8ft. what lengths will make the perimeter at least 200 ft at most 200

it will be 2(1+8)<=200

Mikey bikes 12 miles in 2 hours. How many miles does Mikey bike in an hour?