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Greeley [361]
3 years ago
6

Use the formula speed distance/time to calculate each speed A train travels 120miles in 2hours speed= Mph

Mathematics
1 answer:
antoniya [11.8K]3 years ago
5 0

Answer:

60

Step-by-step explanation:

120 miles divided by 2 hours equals 60 mph

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"I would prefer a system of government that ensured that the President and the Congress were controlled by the same party."
sasho [114]

The type of government where the president and its Congress weer controlled by the same party is one which is democratic and has such specific laws.

<h3>What is a System of Government?</h3>

This refers to the different ways in which a sovereign nation makes its laws and also makes policies that affects its citizens.

There are different systems of government and some of them includes:

  • Democracy
  • Dictatorship
  • Monarchy, etc.

Read more about democracy here:

brainly.com/question/26100096

5 0
2 years ago
I have a kit for constructing a chicken coop. The kit comes with 10-foot long beams. The instructions say to cut each beam into
azamat
<span>The long piece should measure 7.5 feet or 7'6" (7 foot 6 inches). If x is the length of the short piece then the length of the long piece must be 3x. The total length of the uncut beam is 10 foot. This can be represented by : x + 3x = 10 4x = 10 x = 2.5 As x = 2.5 = length of short piece, then the long piece measures 3x = 3(2.5) = 7.5 feet. There are 12 inches in a foot so 7.5 feet = 7'6"</span>
8 0
4 years ago
A random sample of 60 mathematics majors spent an average of $200.00 for textbooks for a term, with a standard deviation of $22.
tangare [24]

Answer:

20 +/- $6.74

= ( $13.26, $26.74)

The 90% confidence interval for the difference in average amounts spent on textbooks (math majors - English majors) is ( $13.26, $26.74)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x1-x2 +/- margin of error

x1-x2 +/- z(√(r1^2/n1 + r2^2/n2)

Given that;

Mean x1 = $200

x2 = $180

Standard deviation r1 = $22.50

r2 = $18.30

Number of samples n1 = 60

n2 = 40

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

$200-$180 +/-1.645(√(22.5^2/60 +18.3^2/40)

$20 +/- 6.744449847374

$20 +/- $6.74

= ( $13.26, $26.74)

The 90% confidence interval for the difference in average amounts spent on textbooks (math majors - English majors) is ( $13.26, $26.74)

3 0
3 years ago
The sum of the digits of a two digit number is 12. the difference of the digits is 2. find the number of the units digit is larg
ipn [44]
Solving simple equations
4n + 3 = 11
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3 years ago
1. Which shows the Distributive Property?
VashaNatasha [74]

Answer:

Im pretty sure its B for the first one

Step-by-step explanation:

5 0
3 years ago
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