All categories

3 years ago

PLZZ HELP ME OUT THIS ACTUALLY DUE TODAY AND GOING BREAK DOWN I NEED SOMEONE HELP PLEASE!!!!

Mathematics

2 answers:

mylen [45]3 years ago

6 0

Answer:

Step-by-step explanation:

Hey there!

A. 3x5 is 15! However since one of the number is a negetive, we must add a negetive sign to the 15, making it -15!

Remember this: A negetive number times a negetive number is a posititve number, but a negetive number times a positive number is a negetive!

B. 5+-5 is equal to 0, so 3x0 is 0!

C. No matter which way you mutliply it, whether it's -5x3 or 3x-5, the answer will always be -15! (-5)x(3+-3) is: 3+ -3 is 0, so -5 times 0 is the same thing as 5x0, which is still 0!

D. Like I said before, a negetive times a negetive is a positive, so -3x-5 is the same as saying 3x5, which is 15!

I hope this explanation helps you! Please mark me Brainliest!

maks197457 [2]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

The difference of two numbers is 3. their sum is 13. find the numbers. creater the system and solve

erica [24]

Hey there :)

Let us translate the words into mathematics!

The difference of 2 numbers is 3
x - y = 3

The sum of 2 numbers is 13
x + y = 13

(eq. 1) x - y = 3
(eq.2) x + y = 13
eq. 1 + eq.2 ⇒ x - y = 3
+ x + y = 13 ( -y and +y cancels out )
2x = 16
$\frac{2x}{2} = \frac{16}{2}$
x = 8

We have the value of x, simply substitute it in either of the formulae to find y

x - y = 3 , 8 - y = 3 , 8 - 3 = y , 5 = y
x + y = 13 , 13 - 8 = y , 5 = y

x = 8 , y = 5

8 0

3 years ago

What is the surface area of the pyramid? 24.9 m2 55.7 m2 75.7 m2 105.4 m2

bija089 [108]

55.7

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

May B. Luckie tosses a dart at the April calendar on the wall. What are the ODDS that the dart hits a date that is a prime numbe

meriva

Answer:

The ODDS that the dart hits a date that is a prime number are 1:1

Step-by-step explanation:

Odds:

An odd is writen as:

Number of desired outcomes: Number of undesired outcomes.

In this question:

April has 30 days, 15 of which are prime numbers and 15 of which are odd numbers.

So the odds are:

15:15

Simplifying by 15

1:1

The ODDS that the dart hits a date that is a prime number are 1:1

5 0

3 years ago

2x+3>x+5. Solving inequalities

pochemuha

The answer is x>2 I believe.

6 0

3 years ago

In a chemical compound there are three parts zinc for every 16 parts copper by mass. A piece of the compound contains 320 g of c

Orlov [11]

Total mass contains 320g copper. How many parts of 16g copper are there of the total mass of 320g copper? 320/16 = 20. There are 20 portions of 16g copper. (320/16) * 3 = 60g There are 60g of zinc in the compound.

6 0

3 years ago