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Fantom [35]
3 years ago
9

Evaluate 39*(2+1)-2x(4+1)

Mathematics
2 answers:
Scrat [10]3 years ago
8 0

Answer:

117 - 10x

Step-by-step explanation

I'm sorry i don't remember the correct explanation but you must simplify each term I had this question on a quiz and got it correct .

lesya692 [45]3 years ago
3 0
This might answer you question just use this app:

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Write each ratio statement as a fraction and reduce to lowest terms if possible:
qwelly [4]

The answers are:

18 to 24 =  \frac{18}{24} = \frac{3}{4}

5 to 15 =  \frac{5}{15} = \frac{1}{3}

14:42 =  \frac{14}{42} = \frac{1}{3}

15 cents to 18 cents = \frac{15}{18}  = \frac{5}{6}

Explanation:

To write a fraction using a ratio, simply use the first number as the numerator (top number), in this case, the numbers 18, 5, 14, and 15, and the second or biggest number as a denominator (bottom number), in this case, the numbers 24, 15, 42 and 18. This means the fractions are  \frac{18}{24},  \frac{5}{15}, \frac{14}{42} , and  \frac{15}{18}.

The second step is to reduce or simplify the fractions, which means the numbers in a fraction are divided by the same factor (a number that divides another without a remainder). Additionally, to do this, it is important to reduce the fraction to its minimum.

\frac{18}{24} divide this by 6, which is equivalent to \frac{3}{4}

\frac{5}{15} divide this by 5, which is equivalent to \frac{1}{3}

\frac{14}{42} divide this by 14. which is equivalent to \frac{1}{3}

\frac{15}{18} divide this by 3, which is equivalent to \frac{5}{6}

7 0
3 years ago
A manufacturer produces bolts of a fabric with a fixed width. The quantity q of this fabric (measured in yards) that is sold is
slamgirl [31]

Answer:

(A) the selling price is $20 per yards, and the expected yards to be sold is 10,000 yards

the derivative f'(20) is negative, which means the fabric producing company will sell 350 fewer yards when selling price is $20 per yard

(B) = R'(20) = $3000

∴the company will get extra $3000 revenue when selling price is $20 per yard

Step-by-step explanation:

A. given that

<em>f</em>(20)= 10,000

<em>f'</em>(20)= -350(first derivative)

the selling price is $20 per yards, and the expected yards to be sold is 10,000 yards

the derivative f'(20) is negative, which means the higher the price, it wil reduce the number of yards to be sold making it 350 fewer yards

(B) R(p) = p <em>f</em>(p)

<em>f</em>(20)= 10,000

<em>f'</em>(20)= -350(first derivative)

R(p) = p <em>f</em>(p)

differentiate with respect to p, using product rule

R'(p) = p <em>f' </em>(p) + <em>f</em>(p) (first derivative)

where p = 20

R'(20) = 20 <em>f' </em>(20) + <em>f</em>(20)

R'(20) = 20(-350) + 10,000

R'(20) = -7000 + 10,000

R'(20) = $3000

∴ the revenue is increasing by $3000 for every selling sold yard and increase in price per yard

3 0
4 years ago
What’s the answer to this question?
denis23 [38]
I think the answer is C ( 11 )
8 0
3 years ago
What theorem or postulate can be used to justify that HIG=FIE
oksano4ka [1.4K]

Answer:

A

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
An exterior angle of a triangle equals _______ minus the adjacent interior angle. 90 270 180 360An exterior angle of a triangle
Romashka [77]

180

The exterior angle of a triangle + the adjacent interior angle are supplementary, that is sum to 180°, thus

the exterior angle = 180 - adjacent interior angle




7 0
3 years ago
Read 2 more answers
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