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3 years ago

3(2.7+5)−2 what is the answer

Mathematics

1 answer:

lbvjy [14]3 years ago

3 0

Answer:

The answer to the problem is 21.1

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3)What is the slope of the equation below? y=-*-7

ohaa [14]

If it’s blank and just a negative sign the answer should be -1

5 0

3 years ago

Read 2 more answers

(50 POINTS)

irakobra [83]

answer is attached below

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4 years ago

Diego is solving this system of equations:

USPshnik [31]

The solutions of the equations are x = 1 and y = 2

The system of equations are

4x + 3y = 10

-4x + 5y = 6

Here we have to use the elimination method. Eliminate the x term and find the value of y term

Add both equation

3y + 5y = 10 +6

Add the like terms

8y = 16

y = 16 / 8

Divide the terms

y = 2

Substitute the value of x in the first equation

4x + 3y = 10

4x + 3×2 = 10

Multiply the terms

4x + 6 = 10

4x = 10 - 6

4x = 4

x = 4 / 4

Divide the terms

x = 1

Hence, the solutions of the equations are x = 1 and y = 2

Learn more about elimination method here

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7 0

2 years ago

Rachel mows 5 lawns in 8 hours. At this rate, how many lawns can she mow in 40 hours?

expeople1 [14]

Answer: 25

Step-by-step explanation: 8*5=40, so multiply 5 by 5. Or, to put it another way:

5/8 = 25/40

8 0

4 years ago

What is the slope of the line?

shtirl [24]

Answer:

$m=\frac{1}{3}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (2, -1)

Point (-4, -3)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute [SF]: $m=\frac{-3+1}{-4-2}$
Add/Subtract: $m=\frac{-2}{-6}$
Simplify: $m=\frac{1}{3}$

4 0

3 years ago