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ale4655 [162]
3 years ago
8

toothless car wash (the kid next door) can wash 3 cars in one and a half hours. how long will it take to wash 10 cars

Mathematics
1 answer:
katrin2010 [14]3 years ago
6 0

Answer:

5 hours

Step-by-step explanation:

1.5 (hours) / 3(cars) = 0.5 hours per car

0.5 x 10 = 5

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What fraction has a numerator 8 and is equivalent to 1/2<br><br> 4/8<br> 8/16<br> 8/12 or 8/9
tangare [24]

Answer:

8/16

Step-by-step explanation:

(8÷8)=1 / (16÷8)=2 = 1/2

8 0
2 years ago
Aggie is an Australian exchange student in China, and she currently has 14,000 yuan in her bank account. If the exchange rate ch
Evgen [1.6K]
Find the value in Australian dollars for each exchange rate. 
<span>1st exchange rate: </span>
<span>14000/6.21= $2254.43 </span>

<span>2nd exchange rate: </span>
<span>14000/6.37= $2197.80 </span>

<span>Find the difference between the two: </span>
<span>$2254.43 - $2197.80 = $56.63 </span>

Since the first value is greater than your second one Aggie lost money and your answer is <span>It decreases by $56.63.</span>
3 0
3 years ago
Which sets are not closed under subtraction
anastassius [24]

If you're referring to the different sets of real numbers, it's the ones that you could try to do subtraction and not get an answer that still in that set.

For example, natural numbers (aka 1, 2, 3, 4, ...) are not, because 7 - 11 = -4 and -4 is not a natural number.

Also, whole numbers (aka 0, 1, 2, 3, 4, ...) has the same issue.

Basically any set of real numbers that doesn't include negative numbers will have this issue.

6 0
2 years ago
Suppose x, y, and z are all rational numbers. Is
umka2103 [35]
Yes number 1 yes yes
7 0
3 years ago
Change a Relation to Make It a Function The relation R is shown below as a list of ordered pairs. R = { (1, 4), (1, 3), (-1, 3),
nexus9112 [7]

Answer: (1,4) and (1,3) because the have the same x-value

Step-by-step explanation:

A function is defined so that for each input (known as the domain), there is no more than one output (known as the range).

8 0
1 year ago
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