Tomas bought a book that cost $18. it was on sale for 84% of its original price. how much did tomas pay

Answers

Answer 1
Answer:

Answer: 15.12

Step-by-step explanation:

84% of 18

=84/ 100 × 18

=84× 18 / 100

=1512/100

=15.12

The original price is $15.12

Answer 2
Answer: You said so yourself, Tomas paid $18.
The original price of the book was about $21.43. 

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Solve for x:x2 + 8x = -1

Ian is another of Josie’s clients. He is 60 years old. What is the MHR for Ian when he is training

Answers

Answer:

166 bpm

Step-by-step explanation:

Ian's age = 60

MHR stands for maximum heart rate. There are two methods of calculating the MHR :

1) MHR = 220-age

2) MHR = 217-(0.85×Age)

Both the methods are easy to solve but the most accurate is the second one, hence we use the second method to calculate MHR of Ian.

MHR = 217-(0.85×Age)

        = 217-(0.85×60)

        166

Since the MHR is calculated in beats per minute (bpm)

Therefore, MHR of Ian = 166bpm

MHR=190-(age-30)/2
MHR=190-(60-30)/2
MHR=190-(30/2)
MHR=190-15
MHR=175 bpm

Solve the inequality 12x - 3x +11 > 4x - (17-9x)

Answers

The solution of the given inequality 12x - 3x + 11 > 4x - (17 - 9x) is x < 7

The given inequality is,

12x - 3x +11 > 4x - (17-9x)

Simplify the left-hand side of the inequality by combining like terms.

We can simplify 12x - 3x to get 9x, so our inequality becomes:

9x + 11 > 4x - (17 - 9x)

Next, we can simplify the expression inside the parentheses on the right-hand side of the inequality by distributing the negative sign:

9x + 11 > 4x - 17 + 9x

We can further simplify this by combining like terms on the right-hand side of the inequality:

9x + 11 > 13x - 17

Now, we can isolate the variable on one side of the inequality by subtracting 9x from both sides:

11 > 4x - 4x - 17

Add 17 to both sides to isolate the variable:

28 > 4x

Finally, we can solve for x by dividing both sides by 4:

x < 7

Therefore, the solution to the inequality 12x - 3x + 11 > 4x - (17 - 9x) is x < 7.

To learn more about inequality visit:

brainly.com/question/30231190


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12x - 3x +11 > 4x - (17-9x)\n9x+11>4x-17+9x\n4x<28\nx<7

Why is math important in every day life?

Answers

Answer:

?

Step-by-step explanation:

Math is important in everyday life because math helps us with better problem-solving skills. It helps you think analytically and have better reasoning abilities

Answer:

Math helps us have better problem-solving skills. Math helps us think analytically and have better reasoning abilities. Analytical thinking refers to the ability to think critically about the world around us. ... Analytical and reasoning skills are important because they help us solve problems and look for solutions.

Step-by-step explanation:

Y=8 when x=20 find y when x= 30

Answers

Answer:

y=13

Step-by-step explanation:

if x=20 when y=8 (we can creat equation )

x=2y+4 (you can prove that the equation is correct by substitute )

so the question is if x=30 find the value of y

30=2y+4

30‒4=2y

26=2y

26/2=2y/2

13=y

i hope this helps you

Can someone please help me with this ASAP ill love you forever

Answers

Answer:

Step-by-step explanation:

I can help :D

What is the slope of a line that is perpendicular to a line whose equation is −2y=3x+7 ?

Answers

The slope of a line that is perpendicular to a line whose equation is −2y = 3x + 7 is (2)/(3)

Solution:

Given that we have to find the slope of the line that is perpendicular to a line whose equation is −2y = 3x + 7

The slope intercept form is given as:

y = mx + c

Where "m" is the slope of line and "c" is the y - intercept

Given equation is:

-2y = 3x + 7\n\n-y = (3)/(2)x + (7)/(2)\n\ny = (-3)/(2)x - (7)/(2)

On comparing the above equation with slope intercept form,

m = (-3)/(2)

We know that product of slope of a line and slope of line perpendicular to it is -1

Therefore,

(-3)/(2) * \text{ slope of line perpendicular to it } = -1\n\n \text{ slope of line perpendicular to it } = (2)/(3)

Thus slope of line that is perpendicular to given line is (2)/(3)