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allsm [11]
2 years ago
13

Last year Andrea's annual salary was A dollars and she was paid biweekly. This year she received a

Mathematics
1 answer:
Cloud [144]2 years ago
7 0

Biweekly salary last year algebraically will be S = (27)A.  Semimonthly salary this year algebraically will be S = ( A + R )6.

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that Last year, Andrea's annual salary was A dollar and she was paid biweekly. This year she received a raise of R dollars per year. She is now paid semimonthly.

Biweekly salary last year algebraically will be:-

S = (27)A.

Semimonthly salary this year algebraically will be:-

S = ( A + R )6.

Therefore, the biweekly salary last year algebraically will be S = (27)A.  Semimonthly salary this year algebraically will be S = ( A + R )6.

To know more about expression follow

brainly.com/question/723406

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When setting up a proportion to calculate scale drawings, how do you write the proportion? A)actual/actual B)actual/drawing C) d
Semmy [17]

When setting up a proportion to calculate scale drawings, how do you write the proportion? A)actual/actual B)actual/drawing C) drawing/drawing D)drawing/actual

The correct answer is option D: drawing/actual

Suppose there is a drawing that has a scale of 1:10. So, this means anything drawn with the size of "1" would have an actual size of "10" in the real world, so a measurement of 120mm on the drawing would be 1200mm on the actual/real image.

3 0
4 years ago
Round 8.1165 to the nearest hundredth.​
Yakvenalex [24]

Answer:

8.12

Step-by-step explanation:

Hey There!

When you round to the nearest hundredth you are rounding the number 2 digits away from the decimal point which is 1

remember we base the rounding off of the number after 1 which is 6

5 or more raise the score

so 8.1165 rounded to the nearest hundredth would be

8.12

7 0
3 years ago
Read 2 more answers
Rini used a stick to draw a right triangle in the ground. The hypotenuse of her triangle is 24 inches and one of the legs is 12
Mademuasel [1]
Use the pythagorean theorem A² + B² = C²

A and B are legs and C is the hypotenuse 

so-    A² + 12² = 24²      A² + 144 = 576  
                                           -144     -144

                                   A² = 432          then you have to take the square root 
                                                           of each side 

so-      A = √432    or aprox. 20.78


4 0
3 years ago
Someone please help I don’t understand sad face
Bess [88]
-1 cus its -1 becus u -1 so u get -1
6 0
3 years ago
Read 2 more answers
A research firm needs to estimate within 3% the proportion of junior executives leaving large manufacturing companies within thr
Y_Kistochka [10]

Answer:

972 junior executives should be surveyed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

35% of junior executives left their company within three years.

This means that \pi = 0.35

0.95 = 95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

To update this study, how many junior executives should be surveyed?

Within 3% of the proportion, which means that this is n for which M = 0.03. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.96\sqrt{\frac{0.35*0.65}{n}}

0.03\sqrt{n} = 1.96\sqrt{0.35*0.65}

\sqrt{n} = \frac{1.96\sqrt{0.35*0.65}}{0.03}

(\sqrt{n})^2 = (\frac{1.96\sqrt{0.35*0.65}}{0.03})^2

n = 971.2

Rounding up:

972 junior executives should be surveyed.

5 0
3 years ago
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