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meriva
3 years ago
14

Janice wants to create a test containing 20 questions worth 50 points. If Janice creates questions worth either __two points or

four points, she can include __two-point questions and four-point questions.
NextReset
Mathematics
2 answers:
Helga [31]3 years ago
8 0
15 two points and 5 two points
dimaraw [331]3 years ago
6 0

It would be 15 two point questions and 5 four point questions.

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The water level of a canal was 7 inches below sea level. It decreased 2 1/4 inches in January and 1 3/8 inches more in February.
elixir [45]
The canl's water level is now 10.875 below sea level
because 2 1/4 or 2.25 +7=9.25 and 13/8 or 1.625+9.25=10.875
8 0
3 years ago
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Ken has an investment account which compounds interest continuously at a rate of 3.4%. After 4 years, he has $4400 in the accoun
Maksim231197 [3]

Answer:

$6617

Step-by-step explanation:

Use the formula for calculating compound interest A=P0ert where A is the unknown, P0=4400, r=0.034, and t=12. Substitute the values into the formula and simplify.

A=4400e0.034⋅12

A=4400e0.408

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After 12 years, there will be A≈6617 in the account, rounded to the nearest dollar.

5 0
3 years ago
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Find the general solution of (x+3)y’=2y
gregori [183]

Answer:

y=C(x+3)^2

Step-by-step explanation:

We are given:

\displaystyle (x+3)y^\prime=2y

Separation of Variables:

\displaystyle \frac{1}{y}\frac{dy}{dx}=\frac{2}{x+3}

So:

\displaystyle \frac{dy}{y}=\frac{2}{x+3} \, dx

Integrate:

\displaystyle \int\frac{dy}{y}=\int\frac{2}{x+3}\, dx

Integrate:

\displaystyle \ln|y|=2\ln|x+3|+C

Raise both sides to e:

|y|=e^{2\ln|x+3|+C}

Simplify:

|y|=(e^{\ln|x+3|})^2\cdot e^C

So:

|y|=C|x+3|^2

Simplify:

y=\pm C(x+3)^2=C(x+3)^2

5 0
3 years ago
Bob sets the price of the plants according to their height in inches. A plant that is 9.5 inches high costs $2.28 in his store.
alekssr [168]
2.28 devide 9.5
=0.24
7 0
3 years ago
The tables below show four sets of data:
artcher [175]

Answer:

are think my answer is A, because x and y are are the same

6 0
3 years ago
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