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Nonamiya [84]
3 years ago
9

Calculate: 20+ 3 (5 – 1)

Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 0

Answer:

23,4

Step-by-step explanation:

yanalaym [24]3 years ago
5 0

Answer:

32

Step-by-step explanation:

20 + 3(5 - 1)

20 + 15 - 3

35 - 3

32

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Sam’s Swimming Pool Cleaning has an annual gross profit of $88,400. Sam charges $25 per week for each of his customers for 52 we
m_a_m_a [10]
To get how many customers Sam has, write an equation that will relate to the gross profit. Let n be the customers. Since for 52 weeks, Sam charges $25 per week per person, multiply n by the number of weeks and the charge. The equation is written as $88,400 = 52 weeks x $25 per week x n persons. Divide $88,400 by the product of 52 weeks and the $25 charge. The answer will be 68. The annual operating expense $48,000 is just there to make confusion. 
3 0
3 years ago
Read 2 more answers
Can someone please help me?
kvasek [131]

now, let's recall the rational root test, check your textbook on it.

so p  = 18 and q = 1

so all possible roots will come from the factors of ±p/q

now, to make it a bit short, the factors are loosely, ±3, ±2, ±9, ±1, ±6.

recall that, a root will give us a remainder of 0.

let us use +3.


\bf x^4-7x^3+13x^2+3x-18 \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{r|rrrrr} 3&1&-7&13&3&18\\ &&3&-12&3&18\\ \cline{1-6} &1&-4&1&6&0 \end{array}\qquad \implies (x-3)(x^3-4x^2+x+6)


well, that one worked... now, using the rational root test, our p = 6, q = 1.

so the factors from ±p/q are ±3, ±2, ±1

let's use 3 again


\bf \begin{array}{r|rrrrr} 3&1&4&1&6\\ &&3&-3&-6\\ \cline{1-5} &1&-1&-2&0 \end{array}\qquad \implies (x-3)(x-3)(x^2-x-2)


and of course, we can factor x²-x-2 to (x-2)(x+1).

(x-3)(x-3)(x-2)(x+1).

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3 years ago
How can you use order numbers that are written as fractions, decimals, and percents?
galina1969 [7]
2.5 4/5 8% that is an example of written fractions decimal and percents
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The slant height of the top is 5 pm and the height of the cylinder is 9m find the distance between P and Q
Mashcka [7]

Answer:The slant height of the top is 5 m, and the height of the cylinder is 9 m. Find the distance between P and Q, to the nearest cm. 0 height of small triangle.

8 0
2 years ago
Find last​ year's salary​ if, after a 5% pay​ raise, this​ year's salary is 35,175
erastovalidia [21]

Answer:

Step-by-step explanation:

x + 0.05x = 36225

x(1 + 0.05) = 36225

x*1.05 = 36225

by solving we find:

x = $34,500

3 0
2 years ago
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