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3 years ago

You receive 9 text messages in 12 minutes. What is the rate of text messages per hour?

Mathematics

1 answer:

garri49 [273]3 years ago

6 0

9 text in 12 minutes
60 min/12= 5 intervals
9*5=45texts an hour

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Sabrina was able to map circle P onto circle R (with Q and S being on each circle, respectively) using a translation and a dilat

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Answer:there is no error

Step-by-step explanation:

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3 years ago

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5.) Find the value: -2/3 - (-2/5) =

Citrus2011 [14]

Answer: -4/15

Step-by-step explanation:

- 2/3 - (-2/5)

= -2/3 + 2/5

= -10/15 + 6/15

= -4/15

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3 years ago

100 POINTS EZ |

ehidna [41]

Area of the quadrilateral=1/2×diagonal×(sum of perpendiculars)

Put the values

Area:-

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2 years ago

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A barrel of crude oil contains about 5.61 cubic feet of oil. How many barrels of oil contained in 1 mile (5280 feet) of a pipeli

8_murik_8 [283]

1)volume of the pipeline

The pipeline is a cylinder, therefore;
Volume (cylinder)=πr²h
r=radius
h=height of the cylinder

diameter=6 in*(1 ft / 12 in)=0.5 ft
raius=diameter / 2=0.5 ft / 2=0.25 ft.
height=5280 ft

Volume (pipeline)=π(0.25 ft)²(5280 ft)=330π ft³≈1036.73 ft³.

2) we calculate the number of barrel
1 mile of oil in this pipeline is 330π ft³ of oil.

1 barrel of crude------------------5.61 ft³
x----------------------------------330π ft³

x=(1 barrel*330π ft³) / 5.61 ft³=184.8 barrels

3) we calculate the price.

1 barrel---------------$100
184.8 barrels---------- x

x=(184.8 barrels * $100) / 1 barrel=$18,480

Solution: ≈$18,480

6 0

3 years ago

4 there are only red sweets and yellow sweets in a bag.

Taya2010 [7]

Using the probability concept, it is found that since the number of red sweets would be a decimal number, the probability cannot be $\dfrac{7}{10}$

<h3>What is probability?</h3>

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

In this problem:

In total, there are 8 + n sweets in the bag.

Of those, n are red.

The probability of red is:

$p=\dfrac{n}{n+8}$

Supposing, we solve for n:

$\dfrac{n}{n+8} = \dfrac{7}{10}$

10n = 7n + 56

3n = 56

n = 56 / 3

n = 18.67

Since the number of red sweets would be a decimal number, the probability cannot be 7 / 10

To know more about probability follow

brainly.com/question/24756209

#SPJ1

4 0

2 years ago