The sum of two numbers is -1. when twice the first number and four times the second number are added the sum is -10.what are the two numbers

3 and - 4

Step-by-step explanation:

Let

The first number be "x", and

The second number be "y"

The sum of the 2 numbers is -1, so we can write:

x + y = -1

or

x = -1 - y

Twice the first and 4 times second SUMMED, gives us -10, so we can write:

2x + 4y = -10

Now, we put 1st equation in 2nd and find y first:

Now, finding x:

x = -1 - y

x = -1 -(-4)

x = -1 + 4

x = 3

So, the two number are:

3 and - 4

the answer is c.

for continuous functions, they continue in the same pattern and you have to find that pattern kinda like slope

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.