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3 years ago

Please help Which expression is equal to...?

Mathematics

1 answer:

Margarita [4]3 years ago

3 0

Answer:

the last one $-\sqrt{5}$

Step-by-step explanation:

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Jan has $130. If she saves $25 per week, in how many weeks will she have $600?

serious [3.7K]

Let's represent the number of weeks with the variable 'w':

130 + 25w = 600

We subtract both sides by 130:

25w = 470

w = 18.8

We round up:

It will take her 19 weeks.

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3 years ago

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A recipe for lemonade calls for 6 cups of lemonade for every 24 cups water. Which equation can be used to find x, the percent of

Gelneren [198K]

Answer:

To make 6 cups, you will need 2 cups of lemon and 4 cups of water....6 total

TWO of the six are lemon 2/6 x 100 = 33.33% Lemon the rest is water 100-33.33= 66.67% water

FOUR out of the SIX are water 4/6 x 100 = 66.67% Water

Step-by-step explanation:

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2 years ago

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Natasha_Volkova [10]

Answer:

1+1 is 2

Step-by-step explanation:

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3 years ago

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Which is the completely factored form of 12x3 – 60x2 + 4x – 20?

Natalija [7]

Answer:

$4(x-5)(3{x}^{2}+1)$

Step-by-step explanation:

1) Find the Greatest Common Factor (GCF).

1 - What is the largest number that divides evenly into $12x^3,-60x^2,4x,$ and $-20$ ?

It is $4.$

2 - What is the highest degree of $x$ that divides evenly into $12x^3,-60x^2,4x,$ and $-20$ ?

It is 1, since $x$ is not in every term.

3 - Multiplying the results above,

The GCF is 4.

2) Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

$4(\frac{12{x}^{3}}{4}+\frac{-60{x}^{2}}{4}+\frac{4x}{4}-\frac{20}{4})$

3) Simplify each term in parentheses.

$4(3{x}^{3}-15{x}^{2}+x-5)$

4) Factor out common terms in the first two terms, then in the last two terms.

$4(3{x}^{2}(x-5)+(x-5))$

5) Factor out the common term $x-5$ .

$4(x-5)(3{x}^{2}+1)$

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2 years ago

Please help.<br> Algebra.

ladessa [460]

The answer is 1 bc the solution is (1,-3)

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3 years ago