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marshall27 [118]
3 years ago
11

Able, Ben and Cal each played a game able’s score was six times ben’s score, Cale score was a hird time of Able’s score write do

wn the ratio of abels score to bens score to cals score , write ratio in simplest form?
Mathematics
1 answer:
Feliz [49]3 years ago
3 0

Answer:

6:1:2

Step-by-step explanation:

Let a = Able's score, b = Ben's score, and c = Cal's score.

Since

Able's score was 6 times Ben's score, that means a = 6b.

Cal's score was a third of Able's score, so that means c = a/3. And since a = 6b, that means c = 6b / 3 = 2b.

Thus, the ratio of Able's score to Ben's score to Cal's score, a:b:c, is 6:1:2, because c is twice as much as b and a is 6 times as much as b.

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Find the equation and check answer of (−8x=−2x−8)<br>​
Schach [20]

Answer:

x = 4/3

Step-by-step explanation:

  1. you need to move -8x to the right side.
  2. 0=6x-8
  3. then, you need to move -8 to the left side.
  4. 8=6x
  5. you can get answer!
  6. x = 4/3

3 0
2 years ago
Suppose you invest $250 in an account that pays 2.4% compounded quarterly. After 30 months, how much is in your account?
notka56 [123]
<em>I</em> = Prt
<em>I</em> = (250)(0.024)(2.5)
<em>I</em> = 15
$250 + $15
$265
5 0
3 years ago
A random sample of 9 fields of corn has a mean yield of 40.6 bushels per acre and standard deviation of 7.52 bushels per acre. D
zaharov [31]

Answer:

The critical value that should be used in constructing the confidence interval is -1.397 and 1.397.

80% confidence interval for the true mean yield is [37.1 bushels per acre, 44.1 bushels per acre].

Step-by-step explanation:

We are given that a sample of 1584 third graders, the mean words per minute read was 35.7. Assume a population standard deviation of 3.3.

Firstly, the pivotal quantity for 80% confidence interval for the true mean is given by;

                          P.Q. = \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean yield = 40.6 bushels per acre

            s = sample standard deviation = 7.52 bushels per acre

            n = sample of fields of corn = 9

            \mu = true mean yield

<em>Here for constructing 80% confidence interval we have used One-sample t test statistics as we don't know about the population standard deviation.</em>

<em />

<u>So, 99% confidence interval for the true mean yield, </u>\mu<u> is ;</u>

P(-1.397 < t_8 < 1.397) = 0.80  {As the critical value of t at 8 degree of

                                            of freedom are -1.397 & 1.397 with P = 10%}  

P(-1.397 < \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } } < 1.397) = 0.80

P( -1.397 \times {\frac{s}{\sqrt{n} } } < {\bar X-\mu} < 1.397 \times {\frac{s}{\sqrt{n} } } ) = 0.80

P( \bar X-1.397 \times {\frac{s}{\sqrt{n} } } < \mu < \bar X+1.397 \times {\frac{s}{\sqrt{n} } } ) = 0.80

<u>80% confidence interval for</u> \mu = [ \bar X-1.397 \times {\frac{s}{\sqrt{n} } } , \bar X+1.397 \times {\frac{s}{\sqrt{n} } } ]

                                                = [ 40.6-1.397 \times {\frac{7.52}{\sqrt{9} } } , 40.6+1.397 \times {\frac{7.52}{\sqrt{9} } } ]

                                                = [37.1 , 44.1]

Therefore, 80% confidence interval for the true mean yield is [37.1 bushels per acre, 44.1 bushels per acre].

7 0
3 years ago
(2 5/8 + 2 1/2) - 4 2/3
anyanavicka [17]
Steps:
1. Do 2 5/8 + 2 1/2 by changing them so they have the same denominators. Since 2 goes into 8, 8 would be your common denominator.
2. Multiply 2 times 4 which equals 8. Multiply 1 times 4 which equals 4
3. Your new problem is 2 5/8 + 2 4/8
4. This equals 4 9/8 which equals 5 1/8
5. Do 5 1/8- 4 2/3 by multiplying both denominators and numerators by 3 and the second mixed number by 8
6. 8 times 3 equals 24
1 times 3 equals 3
7. 5 3/24
8. 3 times 8 equals 24
9. 2 times 8 equals 16
10. 5 3/24 - 4 16/24
11. Take from the whole number in 5 3/24
12. 4 27/ 24 - 4 16/24
13. Your answer is 11/24
8 0
2 years ago
Read 2 more answers
Please please help me:) &lt;3
Xelga [282]

Answer:

-5+7

=3

-5-7

=-12

the stuff in bold is the blank parts

4 0
2 years ago
Read 2 more answers
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