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lorasvet [3.4K]
2 years ago
8

the units digit of a two digit number is 10. If the digits are reversed, the new number is 9 less than the original number. find

the original number​
Mathematics
1 answer:
Irina-Kira [14]2 years ago
4 0

Answer: the units digit has to be a 1 digit number not 2

Step-by-step explanation:

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Jessica lived in spain and colombia for a total of 18 months in order to learn spanish. She learned an average of 160 words per
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Answer:

Jessica spent 10 months in Spain and 8 months in Colombia.

Step-by-step explanation:

Let x be the number of months Jessica lived in Spain, then she lived 18 - x months in Colombia.

She learned an average of 160 words per month when she lived in Spain, so she learned 160x words in Spain.

She learned an average of 200 words per month when she lived in Colombia, so she learned 200(18-x) words in Colombia.

In total, she learned a total of 3,200 new words, thus

160x+200(18-x)=3,200\\ \\160x+3,600-200x=3,200\\ \\160x-200x=3,200-3,600\\ \\-40x=-400\\ \\x=10

Jessica spent 10 months in Spain and 8 months in Colombia.

5 0
3 years ago
A diner has collected data about customer coffee-drinking habits. They have calculated that P(cream) = 0.5, P(sugar) = 0.6, and
zubka84 [21]
For the answer to the question above, asking to<span> determine the P(cream and sugar)
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5 0
2 years ago
Read 2 more answers
Each student ticket for an art museum costs $12.50. the total cost for student tickets, t, varies directly as the number of tick
Troyanec [42]

An equation that models the proportional relationship between t and s.

t = 12.5s

<h3>What is proportional relationship?</h3>

Relationships between two variables where their ratios are equal are known as proportional relationships. The fact that one variable is always a constant value multiplied by the other in a proportionate connection is another way to conceive of them. This parameter is referred to as the "constant of proportionality."

<h3>According to the given information :</h3>

1) Ticket for an art museum costs $12.50

2) In other words, the price will increase by $12.50 for each ticket purchased (or tickets).

In other words, the total expense is always 12.5 times the quantity of tickets sold.

3) This indicates that we can create this ---> t = 12.5s.

An equation that models the proportional relationship between t and s.

t = 12.5s

To know more about proportional relationship visit:

brainly.com/question/12022244

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6 0
1 year ago
At Dapper Dave's annual end-of-season sale, every necktie in the shop gets marked down. Dillon purchased 6 neckties during the s
bazaltina [42]

Answer:

6 times 5 = 30

the total is $162

162 + 30 = $192 at full price

Step-by-step explanation:

6 0
2 years ago
Bennett is setting up a light display for a wedding with two 10-foot strands of lights. The lights will be attached to the top o
Anuta_ua [19.1K]

Answer:

7.1

Step-by-step explanation:

write pythagorean theorem x^{2} + x^{2} = 10^2

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\sqrt{x^2} = \sqrt{50}

x = \sqrt{50}

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round to nearest tenth:

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8 0
2 years ago
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