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2 years ago

Determine the solution of the system. Show your work

1 answer:

3 0

First question:

1. Set equations equal to each other so 5x-9=2x+6
2. Put x's on one side so that 3x=15
3. Divide by 3 so that x=15
4. Substitute 15 in for x so that y=2(15)+6
5. Solve for y so that y=36
6. Thus the equations intersect at (15,36)

Second question:

1. Since for lines y=mx+b, and m=slope=3 you only need to write an equation with slope 3
2. y=3x+b, b can be any number

You might be interested in

Two consecutive even integers have the following property. When the smaller integer is added to three times the larger integer,

polet [3.4K]

let x be the first integer
x+ 2 the second integer ( two consecutive even )

smaller integer added to three times the larger x + 3 ( x+2)
 two less than five times the smaller 5x - 2

x + 3 ( x+2) = 5x - 2

x+3x +6 = 5x -2

x=8
the first integer = 8
the second is x+2 =10

4 0

3 years ago

Someone please help me I’m really struggling I will give brainliest

viktelen [127]

Answer:

SA ≈ 1134 cm²

General Formulas and Concepts:

Math

Pi π = 3.14...

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

Radius: r = d/2
Surface Area of a Sphere: SA = 4πr²

Step-by-step explanation:

Step 1: Define

d = 19 cm

Step 2: Find SA

Substitute [R]: r = 19 cm/2
Divide: r = 9.5 cm
Substitute [SAS]: SA = 4π(9.5 cm)²
Exponents: SA = 4π(90.25 cm²)
Multiply: SA = 361π cm²
Multiply: SA = 1134.11 cm²
Round: SA ≈ 1134 cm²

8 0

3 years ago

I dunno how to do this im just hoping people know the answer

9966 [12]

Answer:

its always wrong

Step-by-step explanation:

any variable always has a holder of 1

so 01b doesnt equal 4

6 0

3 years ago

Read 2 more answers

What is equivalent to 7-2(x+2)<-4-3(1-x)

Alex_Xolod [135]

after solving $7-2(x+2)$ we get $x>2$

Step-by-step explanation:

We need to find the value of x in:

$7-2(x+2)$

Solving:

$7-2(x+2)$

So, after solving $7-2(x+2)$ we get $x>2$

Keywords: Solving the expression

Learn more about Solving the expression at:

#learnwithBrainly

3 0

2 years ago

Please help. Thank you

madam [21]

Answer:

Step-by-step explanation:

Pythagoras theroem

$\sqrt{(( {32}^{2}) + {12}^{2} ) }$

= 4√73

8 0

2 years ago