All categories

3 years ago

What is -15 2/3 + (-5 2/3)

Mathematics

2 answers:

solniwko [45]3 years ago

7 0

Answer is -21 1/3

-15 2/3

+ -5 2/3

-------------

Answer is 21 1/3

mr Goodwill [35]3 years ago

5 0

Convert 15 2/3 to an improper fraction;

- 15 × 3 + 2/3 - 5 2/3

Simplify 15 × 3 to 45

- 45 + 2/3 - 5 2/3

Simplify 45 + 2 to 47

- 47/3 - 5 2/3

Convert 5 2/3 to an improper fraction

- 47/3 - 5 × 3 + 2/3

Simplify 15 + 2 to 17

- 47/3 - 17/3

Join the denominators

-47 - 17/3

Simplify

- 64/3

Convert to a mixed fraction;

You might be interested in

Choose which line represents the line of best fit.

Leona [35]

Answer:

Iine B

Step-by-step explanation:

This is because it has most of the data points on it and closer to it

3 0

3 years ago

Read 2 more answers

Points X and Z are on a number line, and point Y partitions

abruzzese [7]

Answer:

The coordinate of $Z$ is 13.36.

Step-by-step explanation:

According to the statement, we have the following information:

$\frac{XY}{XZ} = \frac{5}{12}$ (1)

$\frac{YZ}{XZ} = \frac{7}{12}$ (2)

$X = 0.4$ (3)

$Y = 5.8$ (4)

From (2), we have the following expression:

$YZ = \frac{7}{12}\cdot XZ$

$Y-Z =\frac{7}{12}\cdot (X-Z)$

$Y - Z = \frac{7}{12}\cdot X -\frac{7}{12}\cdot Z$

$Y-\frac{7}{12}\cdot X = Z-\frac{7}{12}\cdot Z$

$\frac{5}{12}\cdot Z = Y-\frac{7}{12}\cdot X$

$5\cdot Z = 12\cdot Y-7\cdot X$

$Z = \frac{12}{5}\cdot Y-\frac{7}{5}\cdot X$ (5)

If we know that $Y = 5.8$ and $X = 0.4$ , then the coordinate of $Z$ is:

$Z = \frac{12}{5}\cdot (5.8)-\frac{7}{5}\cdot (0.4)$

$Z = 13.36$

The coordinate of $Z$ is 13.36.

6 0

3 years ago

Solve 20x+5y=15 for y.

adelina 88 [10]

Y=4x+3. Hope this helped

5 0

3 years ago

Read 2 more answers

23 096 145

Yuri [45]

Answer:

twenty three million ninety six thousand one hundered fourty five

Step-by-step explanation:

not needed

4 0

2 years ago

The discounted price of a book is 85% of the original price. This is a savings of $3. A sales tax of 8% will be added to the dis

Ad libitum [116K]

I think the sales tax is $0.28 cents

4 0

3 years ago