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USPshnik [31]
3 years ago
9

Jason has a total of 15 coins which are dimes and nickels. The coins are worth $1.10. How many dimes does he have?

Mathematics
1 answer:
Paladinen [302]3 years ago
6 0
He has 7 dimes and 8 nickels.
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10th term of an= 20-2n
Dmitry [639]

Answer:

We have that a_{n} = 20-2n

Step-by-step explanation:

We have just to replace n=10 on the general equation

a_{10} = 20-2×10

Therefore:

a_{10} = 0

8 0
3 years ago
A sales manager gathered information on the number of sales calls made and the number of copiers sold for a random sample of 20
lubasha [3.4K]

Answer:

. The sales manager gathered information on the numbers of sales calls made and the number of copiers sold for a random sample of sales representative. Is there a positive correlation between calls made and copiers? Test at the 0.05 level of significance. Determine the 90% prediction interval for 60 number of calls made. * Calls, X Sold. Y 20 40 20 50 40 60 50 90 40 80 20 40 40 60 30 60

5 0
2 years ago
Help me plz I can’t figure it out
Aleks04 [339]

Answer:

m = 60

Step-by-step explanation:

The context is very important, the 'm' represents the minutes late the parents are and from this we can eliminate some options :

- The last one because then a parent would drop their child off earlier

- The first one and the third one because it is too long

4 0
3 years ago
Solve the inequality. Graph the solution on a number line. 7 ≥ t/-2
Elodia [21]

t\geq -14

The graph is shown in the figure attached.

Step-by-step explanation:

We need to solve the inequality 7\geq \frac{t}{-2} and graph the solution.

Solving the inequality: 7\geq \frac{t}{-2}

Switch sides and reverse the inequality:

\frac{t}{-2}\leq 7

Multiplying both sides by -2 and reverse the inequality

-2\frac{t}{-2}\geq 7*-2

t\geq -14

The graph is shown in the figure attached.

Keywords: Graph the inequality

Learn more about Graph the inequality at:

  • brainly.com/question/1626676
  • brainly.com/question/2840217
  • brainly.com/question/6703816

#learnwithBrainly

7 0
3 years ago
Suppose a researcher is interested in understanding the variation in the price of store brand milk. A random sample of 36 grocer
liberstina [14]

Answer: ($3.055, $3.205)

Step-by-step explanation:

Given : Significance level : \alpha: 1-0.95=0.5

Critical value : z_{\alpha/2}=1.96

Sample size : n= 36

Sample mean : \overline{x}=\$\ 3.13

Standard deviation : \sigma= \$\ 0.23

The confidence interval for population mean is given by :_

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

\text{i.e. }\$\ 3.13\pm (1.96)\dfrac{0.23}{\sqrt{36}}\\\\\approx\$\ 3.13\pm0.075\\\\=(\$\ 3.13-0.075,\$\ 3.13+0.075)=(\$\ 3.055,\$\ 3.205)

Hence, the 95% confidence interval to estimate the population mean = ($3.055, $3.205)

3 0
3 years ago
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