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Paha777 [63]
3 years ago
5

find a recipe in a book or online that includes the amount of salt as a fraction. model how to find the amount of salt needed wh

en the recipe is doubled.
Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0

Answer:

Jamaican Black Cake recipe includes, among others, 1/4 teaspoon of salt.

When the recipe is doubled all amounts of ingredients are multiplied by 2. Then the 3 cups of flour are doubled to 2*3 = 6 cups of flour, and the 1/4 teaspoon of salt is doubled to 2*(1/4) = 1/2 teaspoon of salt.

stich3 [128]3 years ago
3 0
Cinnamon roll cakes have salt as a fraction.
<span>¼ tsp. salt
Multiple 1/4 by 2 and you get 2/4 or 1/2 as doubled</span>
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A regular octagon has side lengths of 9 units. Each side of the octagon is
nirvana33 [79]

Answer:

The perimeter of the original octagon is:

  • <u>72 units. </u>

The perimeter of the new octagon is:

  • <u>288 units.</u>

Step-by-step explanation:

When it is mentioned that an octagon is regular, it means that all its sides are equal, therefore, each side of the original octagon has a length of 9 units, considering the formula of the octagon's perimeter:

  • Perimeter of an octagon = 8 * length.

By replacing you get:

  • Perimeter of the original octagon = 8 * 9 = 72 units.

For the new octagon, it is mentioned that each side increases by 27 units, therefore:

  • New length = 27 + 9 = 36 units.

Applying the formula of perimeter of an octagon with the new values we obtain:

  • <u>Perimeter of the new octagon = 8 * 36 = 288 units.</u>
3 0
3 years ago
Factor completely 3x 2 + 2xy - y 2
sergij07 [2.7K]

Answer:

Final answer is (3x-y)(x+y).

Step-by-step explanation:

Given expression is 3x^2+2xy-y^2.

Now we need to factor the given expression 3x^2+2xy-y^2 completely. Let's use factor by grouping method.

3x^2+2xy-y^2

=3x^2+3xy-xy-y^2

=3x(x+y)-y(x+y)

=(3x-y)(x+y)

Hence final answer is (3x-y)(x+y).

5 0
3 years ago
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First you would need to combine like terms. do you know how to do that?
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Mice21 [21]
A.True they can be switched around
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3 years ago
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What is the answer??
Nata [24]

Answer:

f(x) = -½ x - 5x (the 3rd option)

Step-by-step explanation:

f(4)= -½(4) - 5(4)

= -2 - 20

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3 years ago
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