Someone help "explain how you would use addition to find the product of -2 and 5 "

Mathematics

2 answers:

Ksenya-84 [330]3 years ago

3 0

Use a number line, it helps a lot

Troyanec [42]3 years ago

3 0

You need to add like the normal form and then add the symbol of the bigger

You might be interested in

If the pattern rule is defined by the equation `t = 6n`, where `t` is the term value and `n` is the term number, what is the one

blagie [28]

Answer:

600

Step-by-step explanation:

Given

equation t = 6n

n is term number

we have to find 100th term.

Thus, term number is 100

substituting 100 in place of n in equation t=6n , we can find the value of 100th term

t = 6*100 = 600

Thus, 100th term is 600.

8 0

3 years ago

A piggy bank contains 36 coins that consists of dimes and quarters totaling $5.85 how many quarters are in the piggy bank in you

Lesechka [4]

The main idea here is to "translate" the words into maths.
First we need to identify the unknowns and label these.

We need to know the number if dimes and the number of quarters. So lets say
x: number of dimes
y: number of quarters

Now lets write equations from the written problem.
We know that there are 36 coind total, thus:
x + y = 36
We also know that the coins total 5.85 dollars, but it is better to count in cents, that is 585 cents.
x are the number of dimes, their value is x*10
y are quarters with value of y*25
thus:
10x+25y=585

We have two equations and two unknowns now, that needs to be solved to get the answer.

x + y = 36
10x+25y=585

4 0

3 years ago

Read 2 more answers

X2+7x-8 please factor

vova2212 [387]

$x^2+7x-8=x^2+8x-x-8=x(x+8)-1(x+8)=(x+8)(x-1)$