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3 years ago

True or False ? Can you represent the distance of an object underground using negative numbers?

Mathematics

1 answer:

ivanzaharov [21]3 years ago

6 0

Answer:

true

Step-by-step explanation: below sea level is negative, above sea level is positive.

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3 hrs 20 minutes- 1 hr 48 minutes

Nana76 [90]

You first convert everything to minutes

3hrs= 60x3=180mins

1hr= 60x1=60mins

then you add 20 to 180

200

and you also add 48 to 60

104

200-104=

Then you convert to hrs and mins

96-60=36

1hr 36mins

5 0

3 years ago

Alvin is 11 years younger than Elga. The sum of their ages is 43. What is elgas age

Neporo4naja [7]

Answer:

Step-by-step explanation:

Lets assume x is Elgas' age

And y is Alvins age

we know that alvin is 11 years younger than Elga which means,

x=y+11

and the sum of their age is 43

x+y=43

solve it and you get 16

5 0

3 years ago

9. Mr. Paul pays the parking bill before tax at a cost of $33.20. The parking tax rate is 2%. Mr. Paul decides to leave a 5% tip

ale4655 [162]

Answer:

first one should be $35.52

Second one $18.60

Step-by-step explanation:

3 0

3 years ago

Express the ratio in simplest form 85 out of 102

lora16 [44]

1.2 is the answer to your question.

4 0

3 years ago

Read 2 more answers

One bricklayer can build a wall in 6 hours. Another bricklayer could build the same wall in 4 hours. If they work together, how

Natasha2012 [34]

Answer:

they work together, it will take 2.4 hours to build the wall.

Step-by-step explanation:

One bricklayer can build a wall in 6 hours.

One hour work = $\frac{1}{6}$

Another bricklayer can build the same wall in 4 hours.

One hour work = $\frac{1}{4}$

They can together, how long will take them to build the wall.

Let's take "t" the time taken to build the wall.

The sum of their work rate = 1 (To build the wall)

$\frac{t}{6} + \frac{t}{4} = 1$

Now we have to solve this equation. Take LCD of 6 and 4.

The LCD (least common divisor) of 6 and 4 is 12.

$\frac{2t + 3t}{12} = 1$

5t = 12*1

5t = 12

Dividing both sides by 5, we get

t = $\frac{12}{5}$

t = 2.4 hours.

So, they work together, it will take 2.4 hours to build the wall.

6 0

3 years ago