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2 years ago

Abel is making brownies for a bake sale

Mathematics

1 answer:

Butoxors [25]2 years ago

3 0

Answer:

to make 45 brownies, abel needs 15 eggs,

abel needs 5 cups of flour to make 45 brownies

if abel uses 4 cups of sugar, he need to use 2 cups of cocoa powder

the recipe will make 3 brownies if abel only uses 1 egg

Step-by-step explanation:

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If this cube of edge 20 cm long is cut into smaller cubes of edge 10 cm, how many of these smaller cubes do I get?

BartSMP [9]

You’d get 4 cubes, each with an edge of 10 cm

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3 years ago

Suppose y is directly proportional to x. If y= 24 when x=2, what is the value of x when y= 144?

Gala2k [10]

Answer:

Step-by-step explanation:

Because y=24 and x=2 you do the following:

144/24=6

Then, 6x2=12 because it is proportional

Or you could do 24/2=12 and 144/12=12

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2 years ago

Which expression is equivalent to (x^1/2y^-1/4z)^-2?

tiny-mole [99]

Answer:

y^1/2/xz^2 option 3

Step-by-step explanation:

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7 0

2 years ago

The volume of a cone is 3rx? cubic units and its height is x units. Which expression represents the radius of the cone's base, i

Marianna [84]

Answer:

It is given that the volume of a cone = $3\pi x^3$ cubic units

Volume of cone with radius 'r' and height 'h' = $\frac{1}{3}\pi r^2h$

Equating the given volumes, we get

$3\pi x^3=\frac{1}{3}\pi r^2h$

$r^2h=3$ × $3x^3$

$r^2h=9 x^3$

It is given that the height is 'x' units.

Therefore, $r^2x=9x^3$

$r^2=9x^2$

Therefore, $r=3 x$

So, the expression ' $3 x$ ' represents the radius of the cone's base in units.

3 0

1 year ago

Solve. 10x^2 = 6 + 9x10x 2 =6+9x10, x, start superscript, 2, end superscript, equals, 6, plus, 9, x Choose 1 answer: Choose 1 an

yulyashka [42]

Answer:

Option B.

Step-by-step explanation:

If a quadratic equation is defined as

$ax^2+bx+c=0$ .... (1)

then the quadratic formula is

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

The given equation is

$10x^2=6+9x$

It can rewritten as

$10x^2-9x-6=0$ .... (2)

On comparing (1) and (2) we get

$a=10,b=-9,c=-6$

Using quadratic formula we get

$x=\dfrac{-(-9)\pm \sqrt{(-9)^2-4(10)(-6)}}{2(10)}$

$x=\dfrac{9\pm \sqrt{81+240}}{20}$

$x=\dfrac{9\pm \sqrt{321}}{20}$

Therefore, the correct option is B.

6 0

3 years ago

Read 2 more answers