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grin007 [14]
3 years ago
11

Jacy wants to buy a phone. She considers the two following plans:

Mathematics
1 answer:
Digiron [165]3 years ago
4 0
I hope I can help you Ith this

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if x stands for am number what is the mathematical phrase that represents three more than the number​
vlada-n [284]

Answer:

x + 3

Step-by-step explanation:

if x represents a number then 3 more than the number means addition of 3 to the number ( x )

so, required phrase is ;

=》x + 3

8 0
3 years ago
Read 2 more answers
Last year 190 student attended the spring dance and the total cost was 1250. Two years ago 175 people attended and the total cos
kondor19780726 [428]
Unit cost of a ticket = Income from ticket sales / number of tickets sold:

$1250
--------------- = $6.58 per ticket
190 tickets

Again:

$1175
--------------- = $6.71
175 tickets

While ticket prices do change (usually increase) from year to year, it's unusual to see such a situation here.

Don't have any guidelines by which to determine the "fixed cost of a ticket".

If we use the cost of a ticket of 2 years ago ($6.58/ticket), then the income from the sale of 225 tickets this year would be ($6.58/ticket)(225 tickets), or $1480.50.
6 0
3 years ago
| 1. Write the list of numbers in ascending order.<br> &amp;, 12%, 0.13, 1/8, )<br> 128/1,000)
Aleks04 [339]

Answer:

12%, 1/8, 128/1,000, 0.13

Step-by-step explanation:

12% = .12

1/8 = .125

128/1000 = .128

0.13

8 0
3 years ago
What is the average rate of change from x=0 to x=5
zmey [24]
80-40/5-0=40/5=8 through the slope formula
6 0
2 years ago
Read 2 more answers
Use the table of systolic blood pressures (in mm Hg) in each arm
e-lub [12.9K]

Answer:

The 90% confidence interval would be given by (63.330;81.070)

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Let put some notation

x=left arm , y = right arm

x: 175 169 182 146 144

y: 102 101 94 79 79

Since the Confidence is 0.90 or 90%, the value of a = 0.1 and a/2= 0.05we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.05,4)".And we see that ta/2= 2.13

3 0
2 years ago
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