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3 years ago

Evaluate 3/7r + 5/88 when r=14 and 8=8

Mathematics

1 answer:

Leni [432]3 years ago

5 0

Answer:

Step-by-step explanation:

Alright, lets get started.

The given expression as :

$\frac{3}{7}r + \frac{5}{8}s$

r is given as 14 and s is given as 8

Plugging the value of r and s in given expression.

$\frac{3}{7}(14) + \frac{5}{8}(8)$

$3*2 + 5$

$6+5$

$11$

Hence the answer is 11 : Answer

Hope it will help :)

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

Cloud [144]

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.

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7 0

2 years ago

The equation for the horizontal line that contains the point E(3, –4)?

Effectus [21]

The slope of a horizontal line will have a value equal to 0:
m=0
Point-slope form of a line: we need a point (x₀,y₀) and the slope "m".
y-y₀=m(x-x₀)

We have a point ( E(3,-4) ) and the slope of this line (m=0); therefore:y
y+4=0(x-3=
y+4=0
y=-4

Answer: the equation for the horizontal line that contains the point E, would be:
y=-4

7 0

3 years ago

How to graph an exponential function

irina1246 [14]

Step-by-step explanation:

Exponential function is given by general form $y=ab^x$

Where a and b are constants.

say a=1 and b=2 then we can write function as :

$y=1*2^x$

or $y=2^x$

To graph this or any exponential function, we just need to find some points then join them by a curved line.

Like plug x=0, 1, 2,... into above function and find points:

plug x=1

$y=2^x=2^1=2$

Hence point is (1,2)

Find more points similarly then graph them to get the graph as shown below:

7 0

4 years ago

PLEASE HELP! I have a deadline tonight ,I have to get this done! thank you!!<br> Two questions (:

Viktor [21]

Both of your answers are correct. In the first equation, if you were to substitute 3 for x, because you have to do exponents first, you have 3^2, which is 9, and 9*6 =54. If you were to substitute -3 for x again you would have to do the exponents first which would be -3^2 which is 9, and 9*6 = 54.

For the second question, if I substitute 0.75 for t, I get -9 + 18 + 7. This is equal to 16, and therefore the answer would be D. Hope this helps! :D. Let me know if you have questions about my explanation, and feel free to post more questions.

3 0

3 years ago

A) (3,2),(2,1)<br><br> B) (3,-2),(-2,1)<br><br> C) (-3,2),(-2,-1)<br><br> D) (-3,-2),(2,-1)

bija089 [108]

Answer:

Step-by-step explanation:

4 0

4 years ago