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3 years ago

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Jim got 46 out of 60 correct on a test. What is the best estimate of the percent Jim got correct ?

2 answers:

Anuta_ua [19.1K]3 years ago

8 0

Answer-

77

Step-by-step explanation:

i rounded 76.67% (which was the exact percentage of 46 out of 60)

2- 77%

Agata [3.3K]3 years ago

8 0

Answer:

About 76.5% (77%)

Step-by-step explanation:

well start with the simple fractions. 40/60 is 2/3 which is 66.66666 repeating.

If we know it increased at least 5 more that is 45/60 which is 3/4, since 15 * 4 = 60, so 15 * 3 = 45.

We could say without getting too specific that every point will have about a 1.5 or more % increase since if it was out of 100 points every 1 question is +1 % and 50 points every question is +2 %. Since this is 60 it will be roughly about 1.6%

Ok the point is, about 76.5% (77%)

cAlCulAtOrS ExiSt SkOoL Hw

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The art club had an election to select a president. 39 members voted in the election and 13 did not vote. What percentage of the

expeople1 [14]

Answer:

92.85%

Step-by-step explanation:

Add 39+13=42

Divide 39 by 42

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3 years ago

The curve y= (k+2)x^2 meets the line y=(k+3)x +3. Find the range of possible values of k.

Greeley [361]

$(k+2)x^2=(k+3)x+3\\
(k+2)x^2-(k+3)x-3=0\\
\Delta\geq0 \wedge k\not=-2\\
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3 years ago

Graph the image of the given triangle under a dilation with a scale factor of −4 and center of dilation (0, 0) .

monitta

Answer:

See attachment

Step-by-step explanation:

The coordinates of the vertices of this triangle are;

$(-2,-2),(1,-2),(1,2)$

The mapping for a dilation with a scale factor -4 about the origin is :

$(x,y)\to (-4x,-4y)$

The coordinates of the vertices of the dilated triangle are:

$(8,8),(-4,8),(-4,-8)$

We plot these points and connect them with straight lines.

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4 years ago

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A home owner wants to purchase two different chairs for the living room, one for in front of the fire place and one for in front

Ipatiy [6.2K]

Using the combination formula, it is found that photos of 9 different chairs were shown to the home owner.

The order in which the chairs are chosen is important, hence, the <em>permutation formula </em>is used to solve this question.

<h3>What is the permutation formula?</h3>

$P_{n,x}$ is the number of different permutations of x objects from a set of n elements, given by:

$P_{n,x} = \frac{n!}{(n-x)!}$

In this problem, two chairs are chosen from a set of n, and there are 72 different outcomes, hence:

$P_{n,x} = 72, x = 2$

$P_{n,x} = \frac{n!}{(n-x)!}$

$72 = \frac{n!}{(n-2)!}$

$72 = \frac{n(n - 1)(n - 2)!}{(n-2)!}$

$n^2 - n = 72$

$n^2 - n - 72 = 0$

Which is a quadratic function with coefficients $a = 1, b = -1, c = -72$ , hence:

$\Delta = b^2 - 4ac = (-1)^2 - 4(1)(-72) = 289$

Taking the positive root:

$x_1 = \frac{-b + \sqrt{\Delta}}{2a} = \frac{1 + \sqrt{289}}{2} = 9$

Photos of 9 different chairs were shown to the home owner.

You can learn more about the permutation formula at brainly.com/question/25925367

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2 years ago

What is the answer to 13% of eighty nine

Ymorist [56]

Answer: 26.7 is 13% of 89

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3 years ago

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