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2 years ago

Is it correct to write "80.3°"?

Mathematics

1 answer:

Hoochie [10]2 years ago

7 0

Answer:

Yes! Temperature degrees are just like measurements.

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Solve 8x+2y=13 and 4x+y=11 using substitution

Aleonysh [2.5K]

Answer:

No Solution

Step-by-step explanation:

8x+2y=13 4x+y=11 Subtract 4x on both sides to isolate y

y=-4x+11 <---- Substitute this equation into the

equation 8x+2y=13

8x+2(-4x+11)=13

8x-8x+22=13

22=13 (not true)

No Solution

4 0

3 years ago

Is (4, 7) a solution to the system of equations? Explain your answer.

Angelina_Jolie [31]

Answer:

Step-by-step explanation:

Neither 4 or 7 is a solution to both equations

4 0

3 years ago

Find the slope of the line through the given points (4,-2),(-1,8)

nikklg [1K]

Answer:

$\displaystyle m=-2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (4, -2)

Point (-1, 8)

Step 2: Find slope m

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

Substitute in points [Slope Formula]: $\displaystyle m=\frac{8+2}{-1-4}$
[Fraction] Add/Subtract: $\displaystyle m=\frac{10}{-5}$
[Fraction] Divide: $\displaystyle m=-2$

3 0

2 years ago

Madeline is saving up to buy a new jacket. She already has $40 and can save an

xeze [42]

Answer:

120

equation: 40+8(10)=120

Step-by-step explanation:

The math for this is $40 initial plus $8x the 10 weeks which equals 80 so

40+80=120

4 0

3 years ago

Plz help it’s due today’s

mina [271]

Answer:

% increase

Step-by-step explanation:

80(1.15) = 92

3 0

3 years ago