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2 years ago

What is the order of operation in math expressions?

Mathematics

1 answer:

Gnom [1K]2 years ago

8 0

Parenthases
Equation
Multiplication
Division
Addition
Subtraction

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Using the elimination method to solve this system of equations problem 3x + 4y = 12 and -3x - 2y = 6, name its solution. *

xeze [42]

Answer: x=-8 and y=9

Step-by-step explanation:

3x +4y=12 ( This can be equation 1)

-3x-2y=6 ( This can be equation 2)

Equation 1 + equation 2 = 2y=18

y= 18÷2

y=9

Substitute 9 for y in 3x+4=12

3x+4y=12

3x+4(9)=12

3x+36=12

3x= 12-36

3x=-24

x= -24÷3

x= -8

Therefore x=-8 and y=9

Mark me as the brainiest answer

8 0

3 years ago

The sales tax on a $350 computer is $22.75. find the sales tax rate

Mice21 [21]

X = Sales Tax Rate
350 * X = 22.75
22.75 / 350 = 0.065
0.065 = 6.5%

6 0

3 years ago

Emily is 41 years old. Colin is 10 years older than Emily. Dan is 15 years younger than Emily. What is the total of their combin

jok3333 [9.3K]

Answer:

118

Step-by-step explanation:

E = 41

Colin is 10 years older than Emily. C = E + 10 = 41 + 10 = 51, C = 51

Dan is 15 years younger than Emily. D = E - 15 = 41 - 15 = 26, D = 26

E + C + D = 41 + 51 + 26 = 118

3 0

3 years ago

Read 2 more answers

Write the equation of a circle centered at the

Fudgin [204]

Answer:

$(x+4)^2+(y+6)^2=100$

Step-by-step explanation:

Given a circle centred at the point P(-4,-6) and passing through the point

R(2,2).

To find its equation, we follow these steps.

Step 1: Determine its radius, r using the distance formula

For point P(-4,-6) and R(2,2)

$\text{Distance Formula=}\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\text{Radius=}\sqrt{(2-(-4))^2+(2-(-6))^2} \\=\sqrt{(2+4))^2+(2+6)^2}\\=\sqrt{6^2+8^2}\\=\sqrt{100}\\Radius=10$

Step 2: Determine the equation

The general form of the equation of a circle passing through point (h,k) with a radius of r is given as: $(x-h)^2+(y-k)^2=r^2$

Centre,(h,k)=P(-4,-6)

r=10

Therefore, the equation of the circle is:

$(x-(-4))^2+(y-(-6))^2=10^2\\\\(x+4)^2+(y+6)^2=100$

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3 years ago

A French toast recipe calls for

cestrela7 [59]

then u dip the bread in and fry that baby up

8 0

2 years ago

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