All categories

1 year ago

In a class of 27 students, 14 play an instrument and 16 play a sport. There are 6

Mathematics

1 answer:

antiseptic1488 [7]1 year ago

6 0

Answer: 1/3

Step-by-step explanation:

6 + 16 + 14 - 27 = 1/3

You might be interested in

Christine runs 4 miles in 30 minutes. At the same rate, how many miles would she run in 48 minutes?

zavuch27 [327]

Answer:

she would run 6.4 miles in 48 min

Step-by-step explanation:

hope it helps

8 0

3 years ago

Four oranges cost a total of 90 cents. At this rate, what is the cost of 3 dozen oranges? Step by step will put brilliants

allsm [11]

Four oranges cost 90 cents, an orange costs 90/4 cents, which is around 22.5 cents. Multiply this by 36 to get the cost of 3 dozen oranges, so 22.5 times 36 is 810, 810 cents, or 8.10 dollars.

8 0

3 years ago

Read 2 more answers

Find the exact value of the 8th term of the geometric sequence: 648,216,72,24?

Vikki [24]

The answer is b, hope I helped (:

8 0

3 years ago

Mike has 57 action figures. Alex has 186 action figures. Which is the best estimate of the number of action figures together?

MariettaO [177]

57 rounds to 60 and 186 rounds to 190. 60+190=150

5 0

3 years ago

Read 2 more answers

Select the two values of x that are roots of this equation.<br> 2x^2+ 1 = 5x

iren [92.7K]

Answer:

$\frac{5+\sqrt{17}}{4}$ , $\frac{5-\sqrt{17}}{4}$

Step-by-step explanation:

One is asked to find the root of the following equation:

$2x^2+1=5x$

Manipulate the equation such that it conforms to the standard form of a quadratic equation. The standard quadratic equation in the general format is as follows:

$ax^2+bx+c=0$

Change the given equation using inverse operations,

$2x^2+1=5x$

$2x^2-5x+1=0$

The quadratic formula is a method that can be used to find the roots of a quadratic equation. Graphically speaking, the roots of a quadratic equation are where the graph of the quadratic equation intersects the x-axis. The quadratic formula uses the coefficients of the terms in the quadratic equation to find the values at which the graph of the equation intersects the x-axis. The quadratic formula, in the general format, is as follows:

$\frac{-b(+-)\sqrt{b^2-4ac}}{2a}$

Please note that the terms used in the general equation of the quadratic formula correspond to the coefficients of the terms in the general format of the quadratic equation. Substitute the coefficients of the terms in the given problem into the quadratic formula,

$\frac{-b(+-)\sqrt{b^2-4ac}}{2a}$

$\frac{-(-5)(+-)\sqrt{(-5)^2-4(2)(1)}}{2(2)}$

Simplify,

$\frac{-(-5)(+-)\sqrt{(-5)^2-4(2)(1)}}{2(2)}$

$\frac{5(+-)\sqrt{25-8}}{4}$

$\frac{5(+-)\sqrt{17}}{4}$

Rewrite,

$\frac{5(+-)\sqrt{17}}{4}$

$\frac{5+\sqrt{17}}{4}$ , $\frac{5-\sqrt{17}}{4}$

8 0

3 years ago