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3 years ago

Mr Berry’s Supercompost is made by mixing soil, compost and grit in the ratio 4:3:1.

Mathematics

1 answer:

adelina 88 [10]3 years ago

4 0

Answer:

you want me back in touch again please give first few months to

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6(4r + 2b = 24r + 12b = If possible could I please have an explanation?

almond37 [142]

Step-by-step explanation:

24r+2b=24r+2b

❤️❤️❤️❤️❤️

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3 years ago

Solve using quadratic formula 1) y=3x^2-x-6 2) y=-5x^2+7x+3

Paul [167]

1) Solving $3x^2-x-6$ we get $x=\frac{1+\sqrt{73}}{6}\,\,and\,\,x=\frac{1-\sqrt{73}}{6}$

2) solving $-5x^2+7x+3$ we get $x=\frac{-7+\sqrt{109}}{-10}\,\,and\,\,x=\frac{-7-\sqrt{109}}{-10}$

Step-by-step explanation:

We need to solve the equations using quadratic formula.

The first equation is:

1) $y=3x^2-x-6$

The quadratic formula is:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

where a =3, b = -1 and c= -6

Putting values:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{-(-1)\pm\sqrt{(-1)^2-4(3)(-6)}}{2(3)}\\x=\frac{1\pm\sqrt{1+72}}{6}\\x=\frac{1\pm\sqrt{73}}{6}\\so, x=\frac{1+\sqrt{73}}{6}\,\,and\,\,x=\frac{1-\sqrt{73}}{6}$

The second equation is

2) $y=-5x^2+7x+3$

The quadratic formula is:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

where a =-5, b = 7 and c= 3

Putting values:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{-(7)\pm\sqrt{(7)^2-4(-5)(3)}}{2(-5)}\\x=\frac{-7\pm\sqrt{49+60}}{-10}\\x=\frac{-7\pm\sqrt{109}}{-10}\\So, x=\frac{-7+\sqrt{109}}{-10}\,\,and\,\,x=\frac{-7-\sqrt{109}}{-10}$

Keywords: Solve Using Quadratic Formula

Learn more about Solve Using Quadratic Formula at:

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3 0

3 years ago

15 POINTS PLEASE HELP ASAP!! (pls dont write random answers)

quester [9]

Answer:

its either d or a

Step-by-step explanation:

3 0

3 years ago

1) (3m-2)+2-m+3 please help algebra

Andru [333]

Answer:

2m + 3

Explanation

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3 years ago

What is the volume of a triangular pyramid that is 4ft tall and has a base area of 3 square feet

AURORKA [14]

Formula of the Volume of a Pyramid is: $\frac{1}{3}$ ×Area of Base×Height of pyramid
V= $\frac{1}{3}$ ×3×4 (area of base=3 ft²)
V=4 ft³
$\frac{1}{3}$ and 3 cancels out.

4 0

3 years ago