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umka21 [38]
3 years ago
8

HELP FAST!!!!

Mathematics
1 answer:
viktelen [127]3 years ago
8 0

Answer: C. 50 pounds


Step-by-step explanation: 300 x .03 =9

p x .036 =9

p=  / .036 =250

300 - 250 =50 pounds of skimmed milk needs to be removed.


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What is 2/5-1/3 fractions
patriot [66]
You have to make the denominators (bottom numbers) the same via multiplication, it's best to do it to the first number they meet at. that would be fifteen (15)
5×3=15
3×5=15
you then have to multiply the numerators by the respective numbers.
2×3=6
1×5=5
you then subtract the numerators normally
6-5=1
slap back on the denominator
1/15
there's your answer.
(the number you multiply them by isn't the other denominator, it just happens to be the denominators for this equation)
8 0
3 years ago
Lillian and Isabella went shopping for school supplies. Lillian found her favorite notebook on sale so she bought three of the e
ASHA 777 [7]

Answer:

Each girl had $7.50 when they arrived.

Step-by-step explanation:

We have to figure out what c (cost of each notebook) is first before we find out how much money each girl had. We also know they have the same money, so both sides are connected. The equation should be: 3x = x + 5.

3x = x + 5

<em>First, subtract x from both sides. This cancels out the addition by x.</em>

3x - x = 5

<em>Now, subtract x from 3x. This equals 2x.</em>

2x = 5

<em>To cancel out the multiplication by 2, divide both sides by 2.</em>

x = 5/2

<em>Lastly, divide 5 by 2 to get 2.5.</em>

x = 2.5

<em>Substitute x for 2.5 in the earlier equation (3x = x + 5)</em>

3(2.5) = 2.5 + 5

<em>First, multiply 3 by 2.5 to get 7.5.</em>

7.5 = 2.5 + 5

<em>Add 2.5 to 5 to get 7.5.</em>

7.5 = 7.5

Both sides are equal so we have our answer. So, both girls had $7.50 when they arrived at the store.

4 0
3 years ago
Rapunzel cut 2/3 of of her hair. She donated 7/8 of what she cut off to a wig shop.
lesya692 [45]
2/3 of 7/8
2/3×7/8=7/12
8 0
3 years ago
Read 2 more answers
Please help guys!<br> Find the zeros of the quadratic equation by factoring.<br><br> x^2+4x-5=0
mr_godi [17]

Answer:

x = -5, 1

Step-by-step explanation:

To factor an equation, break the polynomial into two binomials which multiply to make it. Find two numbers that multiply to C and add to B from ax^2 + bx + c.

-1 and 5 multiply to -5 and add to 4.

x^2+4x-5 = (x+5)(x-1)

The zeros are the factors set equal to 0 and solved.

(x+5) = 0

x=-5

(x-1) = 0

x=1

8 0
3 years ago
Simplify 3(x-4)+8(x+2) A) 11x-4 B)11x+4 C)11x-2
swat32
It is depending upon multiplication of values to variable and values of numbers again. Here the answer is Option B) 11x + 4. Here is my process on this equating expression.

For this we have to apply the law of distribution or the distributive law, in this we distribute the parentheses into the brackets to further expand them, we further eliminate the bracketed groups and perform the calculations. So, it is stating that, for any number, variable or a quantity if multiplied into a bracketed expression yields two products of multiplication of two quantities; one being the first quantity outside the brackets and two separately distinguished quantities inside the brackets. They are furthermore subtracted by the first quantity to that of the second quantity to obtain and achieve the distributive law.

If I were to express it through mathematical LaTeX Expressions, it will be represented as the first quantity as a variable of "a" where it can exhibit a value or a variable or a term or rule, etc. and then inside the brackets represented as "b" and "c".

Performing the law of distribution of values, variables, etc. It is demonstrated as:

\boxed{\mathbf{a \times (b - c) = a \times b - a \times c}}

We are given the values of the variables as a separate context and addition of two expressions. So, for both of them:

\mathbf{First \: \: Expression: \: 3 (x - 4)}

\mathbf{Second \: \: Expression: \: 8 (x + 2)}

Apply the following distribution law to expand the values onto variables and numbered values inside the brackets.

So, the variable "a", "b" and "c"; For First Expression is: a = 3, b = x and c = 4.

And, Similarly, for the variable of "a", "b" and "c", For Second Expression is: a = 8, b = x and c = 2.

Therefore, According to our distributive law of expanding the components will directly yield us:

\mathbf{3 \times x - 3 \times 4 + 8 \times x + 8 \times 2}

\mathbf{3x - 12 + 8x + 16}

Regroup the terms for a better visualisation and a clearer understanding for similarities between the terms; it makes it more easier to proceed further. So:

\mathbf{3x + 8x - 12 + 16}

All we did, was to separate the variable attached numbered values and shift it on one side; And, separating or shifting the values without variables to the other side.

\mathbf{11x - 12 + 16}

\boxed{\huge{\mathbf{Required \: \: Answer: \: 11x + 4}}}

Hope it helps.
7 0
3 years ago
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