All categories

3 years ago

Which equations results from adding the equations in this system? x+6y=9 -x+2y=-15

Mathematics

1 answer:

UkoKoshka [18]3 years ago

4 0

Answer:

8y = -6

Step-by-step explanation:

Simply add the equations as you would numbers.

The 'x's cancel each other out. The 'y's add together as normal numbers.

9 + (-15) = -6

Hope that this helps!

You might be interested in

Jim is solving 3.6 ÷ 1.5.

marishachu [46]

Answer: c·1.5=3.6

Step-by-step explanation:

3 0

2 years ago

On the first day, a company has 64 orders for shipping crates on backorder. Every day customers order 18 more shipping crates. I

SOVA2 [1]

The correct answer is:

B. 14

Explanation:

Let x be the number of days. On day 1, we begin with 64 orders. We gain 18 orders per day; this is 18x, and gives us

64+18x.

We also make 28 crates per day, which decreases the number of crates we need by 28 per day; this is -28x, and gives us

64+18x-28x

Combining like terms, we get

64-10x

For day 5, we replace x with 5:

64-10(5) = 64-50 = 14

4 0

3 years ago

Which is Greater 3/4 or 11/16

Elan Coil [88]

$\frac{3}{4} = .75$
$\frac{11}{16} = .6875$

$\frac{3}{4} \ \textgreater \ \frac{11}{16}$

6 0

3 years ago

Read 2 more answers

If f(x) = 2x2 +5/(x-2), complete the following statement:

faust18 [17]

For this case we have the following function:

$f (x) = 2x ^ 2 + \frac {5} {x-2}$

By definition, we have that the domain of a function is given by all the values for which the function is defined. The given function is not defined when the denominator is zero.

So:

$x-2 = 0\\x = 2$

Thus, the function is not defined at $x = 2.$

The domain is given by all real numbers except 2.

Answer:

The domain is given by all real numbers except 2.

3 0

3 years ago

3xy А. у 2х ху. Simplify expression

Anika [276]

Nah fam math hard math can solve its own problems 82773919

3 0

2 years ago