All categories

3 years ago

Solve the system of equations using the linear combination method. {9x+5y=35 2x+5y=0 Enter your answers in the boxes.

1 answer:

5 0

9x+ 5y=35
2x + 5y=0 |* -1

9x +5y= 35
-2x -5y= 0
-----------------
7x / = 35
x=35:7
x=5

2x+5y=0
2*5+5y=0
10+5y=0
5y=-10
y= -10:5
y=-2

You might be interested in

Please someone help me with maths

Nata [24]

Answer:

a)= 5x+10

b)= 7y-6

c)= 6x-6

d)= 2x^2+8x-5

e)= 6x+9

f)= 4xy-4y^2+8y

g)= -12y^2+10y

h)= 6x+154

i)= 6x+21

h)= 2x^2+16

6 0

2 years ago

Read 2 more answers

Find the area A if b = 14 cm and h = 6 cm

kipiarov [429]

(14)(6)=84 (base)(height)

4 0

3 years ago

Subtracting 5 from each score in a distribution with a mean equal to 40 and a standard deviation equal to 3 will result in a sta

LenaWriter [7]

Adding or subtracting a constant from each value of a distribution changes the mean, but not the standard deviation.

The standard deviation will equal 3.

6 0

2 years ago

Hey all you math geniuses can you help me with this question that should be easy

kenny6666 [7]

Answer:

(B) $\frac{-3}{x}$

Step-by-step explanation:

A polynomial is the expression which consists of addition, subtraction, multiplication with any variables or constants but the division with a variable is not considered as a polynomial.

Since $\frac{-3}{x}$ consists of division of -3 with a variable, therefore it is not a polynomial, rest all other options are polynomial as they involve addition,multiplication with variables.

7 0

3 years ago

How can you check that this answer is correct? 5,244 = 6= 874

nignag [31]

I think you meant 5,244 ÷ 6 = 874.

Answer/Step-by-step explanation:

We can check if this 5,244 ÷ 6 = 874 is correct by doing it opposite.

Since it 5,244 divide 6 we can do 874 x 6.

$\left[8 7 4] \\$

× $[6]$

======

+ 5244

=======

5244

Hence, this answer is correct.

[RevyBreeze]

3 0

1 year ago