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3 years ago

11

If a test has 30 questions on it and a student answers 18 of the questions correctly, then what percentage would the student get

on the test?

1 answer:

german3 years ago

4 0

The would get a 60%. To find this you need to divide 18/30.

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I need help brosssssssssss

gavmur [86]

Answer
B. Is the answer.

5 0

3 years ago

An ice cream shop sells cones at the volume of 94.2 cubic meters they want to double the volume of the cones without changing th

marin [14]

The volume of a cone is $V=\pi r^2\frac{h}3$ where r = radius and h = height. If the cone has a volume of 94.2 cm³ (I assume you didn't mean m³ because that would be ridiculously huge) and a height of 10 cm, we can plug these values into the formula to find the radius. Don't do any rounding.

$94.2 = \pi r^2\frac{10}3 \\ 282.6 = \pi r^2 *10 \\ 28.26 = \pi r^2 \\ 8.99543738355 = r^2 \\ 2.99923946752=r$

Now we know that's going to be the radius of our <em>new </em>cone as well since we're keeping the diameter the same. The volume is going to be double 94.2 which is 188.4. Let's solve for the height.

$188.4 = \pi (2.99923946752)^2\frac{h}3 \\ 188.4 = \pi(8.99543738355)\frac{h}3 \\ 188.4 = 28.26\frac{h}3 \\ 565.2 = 28.26h \\\\ \boxed{h = 20, r\approx 3}$

5 0

3 years ago

The last time Reid checked, his dog weighed 30 kilograms. Reid just measured his dog again and found out that it weighs 10% less

Vedmedyk [2.9K]

I Think he weighs 27 pounds now correct me if i'm wrong

3 0

3 years ago

What is the center of this circle? <br> What is the radius of this circle?

zimovet [89]

Answer:

The center of a circle is the point from which the circumference is equidistant

Step-by-step explanation:

Radius of a circle is a line drawn from the center of the circle to the circumference.

4 0

3 years ago

Help please! factoring polynomials

alexgriva [62]

Answer:

B

Step-by-step explanation:

you can use foil and the graph,

because you can see (in the graph) that the lines intersect at 1 and 4.

just use foil to help figure out which matches the slope.

something else (the normal way) is find which 2 numbers equal to the last coefficient, in this case it can be

-2 and -2, 2 and 2, 4 and 1 or -4 and -1, multiply them and if they make up the last coefficient, and added it equals the second coefficient it is correct.

6 0

3 years ago

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