MATHEMATICS HIGH SCHOOL

myra's stamp collection consisted of 120 stamps in october. By the following march, her collection had grown to 138 stamps. By how much did her collection increase between october and march

Answers

Answer 1

Answer:

Answer:

18 stamp increase

15 % increase

Step-by-step explanation:

To find the increase in number , we take the number of stamps in march and subtract the stamps in october

128-120 = 18

To find the percent increase, we take the number of stamps that we gained over the original amount of stamps * 100%

percent increase = 18/120 * 100%

.15 * 100%

15% increase

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Compare 1/2 with 3/4 using < > =?
Lee needed to make drapes the length from the floor to the top of the window. The wall beneath the window had the height of 2 2/3 feet and the height of just the window measured 2 3/4 feet. How long do the drapes have to be?
How can x + 8 = -x + 7 be set up as a system of equations? y = x + 8 y = -x + 7 y = x + 8 y = -3x + 7 y = x + 5 y = -2x + 11 y = 8 y = -3x + 7
2. What is the product of 713 and 82? A. 795 B. 58,466 C. 631 D. 8 r57

(6z 2 - 4z + 1)(8 - 3z).

Answers

distributive property
a(b+c)+ab+ac
a(b-c)=ab-ac

(6z^2-4z+1)(8-3z)
move for nicety
(8-3z)(6z^2-4z+1)
distribute
8(6z^2-4z+1)-3z(6z^2-4z+1)=
48z^2-32z+8-18z^3+12z^2-3z=
-18z^3+48z^2+12z^2-32z-3z+8=
-18z^3+60z-35z+8

A student raises her grade average from a 75 to a 90. What was the percent of increase in the student’s grade average? Round your answer to the nearest tenth of a percent, if necessary.

Answers

=(new-old)/old *100%
=(90-75)/75 *100%
=20%
hope it helps

Graham sold 6 magazines less than double what Adrianne sold, a. Which of the following expressions represents Graham's sales?6a − 2
2(a − 6)
a^2 − 6
2a − 6

Answers

The correct answer will be the last option 2a-6

the answer is the second one

Find the common ratio of the sequence: -75, -15, -3, -0.6, . . .

Thank you!

Answers

5:1 is the ratio. You get this by dividing 75/15, 15/3, 3/0.6...

I need an equation for this problem: A small golf club manufacturer is concerned about their monthly costs. The shop has fixed costs of $23,250 per month to run in addition to the $145 in materials per set of golf clubs produced. If the company wants to break-even making 100 sets of clubs per month, what should they charge for each set? Recall that the break-even point is when revenue equals costs. I solved it and the answer is 377.50 but i need a proper equation for my answer

Answers

100 = number of sets of clubs manufactured per month
S = sell-price for a set of clubs

Expenses per month = 23,250 + 145(100) = 37,750

Revenue per month = 100 S

Break-even when Expenses = Revenue

100 S = 37,750

One question: How did you solve it without an equation ?

Determine the function's value when x = -1.O g(-1) = -3
Og(-1) = 0
O g(-1) = 1
Og(-1) = 27

Answers

The value of function's when x = -1 is,

⇒ g (- 1) = 1

What is mean by Function?

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;'

The function is,

⇒ g (x) = x³ + 6x² + 12x + 8

Now, Substitute x = - 1 in above function, we get;

⇒ g (x) = x³ + 6x² + 12x + 8

⇒ g (-1) = (-1)³ + 6 (-1)² + 12 (-1) + 8

⇒ g (-1) = - 1 + 6 - 12 + 8

⇒ g (-1) = 1

Thus, The value of function's when x = -1 is,

⇒ g (- 1) = 1

Learn more about the function visit:

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