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snow_tiger [21]
3 years ago
10

Reggie read a 400- page book in 5 days. On the first day, he read 120 pages .each day after that , he read the same number of pa

ges , show your work mathematics
Mathematics
2 answers:
iris [78.8K]3 years ago
7 0
400 pages in 5 days
but 120 on the first day
so 400-120=280
280 is what he read in the 4 days following
so divide 280 equally among the 4 days
You get 70 per day after the first
nikklg [1K]3 years ago
6 0

Answer:

Hence, Reggie read 70 pages per day after the first day.

Step-by-step explanation:

We are given that Reggie read a 400-page book in 5 days.

on the first day, he read 120 pages.

after first day he read the same number of pages.

Let Reggie read 'x' number of pages per day after the first day.

that means he read 4×x pages in remaining '4' days.

total number of pages=400

⇒   120+4×x=400

⇒     4×x=400-120

⇒      4×x=280

⇒       x=(280/4)

⇒        x=70

Hence, Reggie read 70 pages per day for four days after the first day.


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DaniilM [7]
The question is asking to state if those following scale factors are consider as contraction or expansion, base on my research and further analysis, the possible answer are the following:
3/2 expansion
1/3 contraction
4 contraction
2/5 contraction
4/3 expansion
1/4 contraction

I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarifications 
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denis-greek [22]
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3 years ago
Identify the type of function represented by f(x)=1/2•(3)^x
dalvyx [7]
ANSWER

An exponential growth function.


EXPLANATION

The given function is

f(x) =  \frac{1}{2}  {(3})^{x}

This function is of the form,


f(x) = a {(b})^{kx}

Since k is positive , the function will grow exponentially and fall asymptote to the negative x-axis.


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6 0
3 years ago
Read 2 more answers
20.
sp2606 [1]

Answer: Smaller

Step-by-step explanation:

Multiplying a number by 1.25 increases it by a quarter

Multiplying a number by 0.75 decreases it by a quarter

1.25 / 0.75 = 0.9375

Thus, increasing something by a quarter then decreasing it by a quarter, you are effectively multiplying that number by 0.9375, which is less than 1, so the number will decrease.

4 0
3 years ago
Solve the quadratic equation below for the exact values of x.<br><br> 4x² - 5 = 75
vfiekz [6]

Answer:

x = ±2√5

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients
  • Multiple Roots

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

4x² - 5 = 75

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Addition Property of Equality] Add 5 on both sides:                                    4x² = 80
  2. [Division Property of Equality] Divide 4 on both sides:                                  x² = 20
  3. [Equality Property] Square root both sides:                                                    x = ±2√5
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