All categories

3 years ago

-6 - 8 is equivalent to? 6 + (-8) -6 + 8 6 + 8 -6 + (-8)

Mathematics

2 answers:

nadezda [96]3 years ago

7 0

It is equivalent to:
-6 + (-8)

AleksAgata [21]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

Please help this is due in 30 minutes!

gregori [183]

Answer:

$1.\ 12\ feet = 4\ yards$

$2.\ 4\ miles = 21120\ feet$

Step-by-step explanation:

Given

12 feet = _____ yard

4 miles = ____ feet

To start with;

we need to understand the unit of conversion between the two measurements;

1. 12 feet = _____ yard

To convert from feet to yard;

$1\ foot = \frac{1}{3} yard$

This implies that;

$12\ feet = 12 * \frac{1}{3} yard$

$12\ feet = \frac{12}{3} yard$

$12\ feet = 4\ yards$

2. 4 miles = ____ feet

To convert from miles to feet;

$1\ mile = 5280\ feet$

This implies that;

$4\ miles = 4 * 5280 feet$

$4\ miles = 21120\ feet$

8 0

3 years ago

Tina must select and answer in any order three of seven

Leno4ka [110]

Answer:

Tina can select and answer the essay questions on her test in 35 ways.

Step-by-step explanation:

The order in which she chooses the questions is not important. For example, choosing questions 1, 3 and 7 is the same as choosing 7, 3 and 1. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

Three questions from a set of 7. So

$C_{7,3} = \frac{7!}{3!(7-4)!} = 35$

Tina can select and answer the essay questions on her test in 35 ways.

6 0

3 years ago

Liam's breakfast was an egg and cheese biscuit with a carton of milk. He spent a total of $5.65. Finn spent $7.65 on an egg and

ruslelena [56]

Answer:

An egg and cheese biscuit was $3.65.

Step-by-step explanation:

Liam's breakfast was:

$P = E + C + M$

Where:

P: total price

E: egg

C: cheese biscuit

M: carton of milk

$P = E + C + M$

$5.65 = E + C + M$ (1)

Now, Finn's breakfast was:

$P = E + C + 2*M$

$7.65 = E + C + 2*M$ (2)

By subtracting equation (2) from (1) we have:

$7.65 - 5.65 = 2M - M$

$M = 2$

Hence, the price of a carton of milk is $2, so by entering this value into equation (1) we can find the price of an egg and cheese biscuit:

$5.65 = E + C + M$

$5.65 - 2 = E + C$

$E + C = 3.65$

Therefore, an egg and cheese biscuit was $3.65.

I hope it helps you!

7 0

3 years ago

A factory produced a batch of handheld video games, but 4% of the games were found to be defective. If the batch had 250 games i

nirvana33 [79]

Answer:

the answer is 240

Step-by-step explanation:

If 4% are defective, then out of a batch of 250, the number of defective is

4% x 250 = 4/100 x 250 = 10 defective

So, the number of not defective is 250 - 10 = 240 good!

8 0

3 years ago

The corner section of a football stadium has 6 seats on the first row. Each row after that has an additional 3 seats. How many s

julia-pushkina [17]

9514 1404 393

Answer:

Step-by-step explanation:

The number of seats in a row will give an arithmetic sequence:

6, 9, 12, 15, ...

The first term is 6; the common difference is 3. The general term is ...

an = a1 +d(n -1) . . . . . . n-th term of sequence with first term a1, difference d

The 20th term of the sequence is ...

a20 = 6 +3(20 -1) = 6 +57 = 63

There would be 63 seats on the 20th row.

7 0

2 years ago