All categories

2 years ago

3x + y = 5 2x - 2y = -2

Mathematics

2 answers:

zalisa [80]2 years ago

8 0

Answer:

y =5-3x

and

Step-by-step explanation:

<u>First question</u>

Subtract 3 x from both sides of the equation

Vesnalui [34]2 years ago

7 0

Answer:

Solving the system of equations:

x: 1

y: 2

Step-by-step explanation:

Plug it in to see if it is right, to make sure of course. Better to be safe than sorry.

You might be interested in

Please Help!

vovikov84 [41]

Answer:

Step-by-step explanation:

We can use triangle inequality, let AC = x:

x+4 > 5

x+5 > 4

9 > x

Simplifying:

x>1

x>-1

9>x

Thus: 9>x>1

So the Largest whole number is 8

3 0

3 years ago

What is the area of this figure

anastassius [24]

Answer:

185

Step-by-step explanation:

sorry. had to do something but im bsck :)

5 0

3 years ago

Read 2 more answers

HELP IAM BEING TIMED

MaRussiya [10]

Answer:

Step-by-step explanation:

given y = kx

To find k use the x and y values of the coordinate point given (- 5, 3)

k = $\frac{y}{x}$ = $\frac{3}{-5}$ = - $\frac{3}{5}$

7 0

3 years ago

Read 2 more answers

A cone has a radius of 4.96 cm and a volume of 102 cm³

horrorfan [7]

Answer:

h= 12/pi OR 3.81972

Step-by-step explanation:

$100= \frac{1}{3}5^{2}h$

$100= \frac{1}{3}\pi 25h$

$100= \frac{25\pi h}{3}$

$\frac{12}{\pi } =h$

8 0

2 years ago

svet-max [94.6K]

Answer:

B. 4200

Step-by-step explanation:

A suitable calculator can add the terms for you. (See attached)

The first term is 69, and the common difference is 75-69 = 6. The general term is ...

an = a1 +d(n -1)

an = 69 +6(n -1)

Then the 28th term is ...

a28 = 69 +6(27) = 231

The average term is (a28 +a1)/2 = (231 +69)/2 = 150.

The sum is the number of terms multiplied by the average term:

sum = 28×150= 4200

5 0

2 years ago