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2 years ago

Classify the statements based on whether they are represented by +3 or -3.

Mathematics

1 answer:

Novosadov [1.4K]2 years ago

5 0

Answer

Step-by-step explanation:

If you deposit money, your bank account shows it as +3

3 degrees below zero = - 3 o F which is darn cold.

3 floors below ground level = - 3 floors below ground level

3 feet above sea level = +3 feet

3 degrees about 0 = + 3

3 dollars lost = -3 dollars.

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Robert's dog is 4 years older than Karen's cat. In 3 years, the sum of the ages of Robert's dog and Karen's cat will be 13. How

mylen [45]

Answer:

5.5 years old.

Step-by-step explanation:

Let D represent present age of Robert's dog and C represent present age of Karen's cat.

We have been given that Robert's dog is 4 years older than Karen's cat. We can represent this information in an equation as:

$D=C+4...(1)$

We are also told that in 3 years, the sum of the ages of Robert's dog and Karen's cat will be 13. After 3 years age of dog and cat would be $D+3$ and $C+3$ respectively.

We can represent this information in an equation as:

$D+3+C+3=13...(2)$

From equation (1), we will get:

$C=D-4$

Upon substituting this value in equation (2), we will get:

$D+3+D-4+3=13$

Combine like terms:

$2D+2=13$

$2D+2-2=13-2$

$2D=11$

$\frac{2D}{2}=\frac{11}{2}$

$D=5.5$

Therefore, Robert's dog is 5.5 years old right now.

3 0

2 years ago

We would like to cut exactly 160 meters of wire. Instead of measuring the length, we measure the weight. It is known that 3 mete

ivanzaharov [21]

The weight is 4000 grams, or 4 kg

7 0

2 years ago

2.3 - 5m = 9.8 + 2.5m

Angelina_Jolie [31]

Answer:

m=-1

Step-by-step explanation:

2.3-5m=9.8+2.5m

+5m=9.8+5m

2.3=9.8+7.5m

-9.8 -9.8

-7.5=7.5m

/7.5 /7.5

-1=m

5 0

2 years ago

Read 2 more answers

What digit is in the hundredths place 132.054

Anit [1.1K]

Answer:

Step-by-step explanation:

0 is 10ths 5 is 100ths

4 0

3 years ago

Read 2 more answers

I need answers for this question

Colt1911 [192]

Answer:

1. Use the distributive property to get rid of any parenthesis.

2. Combine like terms

3. Move all variables to one side

4. Inverse operations

8 0

11 months ago