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erastova [34]
2 years ago
8

laura wrote a 3-digit number. she doubled it, added 150, divided by 100, and added 6. her final result was 10. what number did l

aura write?
Mathematics
2 answers:
Ede4ka [16]2 years ago
7 0

Answer:

125

Step-by-step explanation:

start with 10, and go backwards

10-6=4   4x100=400   400-150=250   250/2=125

checked answer:

125x2=250  250+150=400   400/100=4   4+6=10

OverLord2011 [107]2 years ago
3 0

Answer:

126

Step-by-step explanation:

It's 125

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Which of the following graphs could be the graph of the function f(x)=-0.08x(x^2-11x+18)?
MariettaO [177]

Answer:

option C

Step-by-step explanation:

f(x)=-0.08x(x^2-11x+18)

Factor the parenthesis and find out the x intercepts

(x^2-11x+18)

We find out two factors whose product is 18 and sum is -11

-9  and -2 gives us product 18

-9  -2 gives us sum -11

(x^2-11x+18) =(x-9)(x-2)

f(x)=-0.08x(x^2-11x+18)

f(x)= -0.08x(x-9)(x-2)

set f(x) =0  and solve for x

-0.08x(x-9)(x-2) =0

-0.08x =0, so x=0

x-9 = 0 , so x=9

x-2 =0 , so x=2

x intercepts are (0,0) (2,0)  and (9,0)

x intercepts are not repeating

so the graph crosses x -axis at x=0, 2,9

option C is correct

The graph is attached below4


5 0
3 years ago
Read 2 more answers
Paul has 144 army man and his toy box into six equal groups for battle how many army men are in each group
iogann1982 [59]
I'm pretty sure this one is super easy 
you just take 144 and divide it by 6 which would look like 
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5 0
2 years ago
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Judy uses 7.5 pints of blue paint and white paint to paint her bedroom walls. 1/4 of this amount is blue paint, and the rest is
lianna [129]

Answer:

5.625 pints

Step-by-step explanation:

refer to pic

8 0
3 years ago
What is the slope?<br> First, determine the slope.<br> (200,14)<br> (225,16)
Maksim231197 [3]

Answer:

\displaystyle m=\frac{2}{25}

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

<u>Algebra I</u>

  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (200, 14)

Point (225, 16)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute in points [SF]:                    \displaystyle m=\frac{16-14}{225-200}
  2. [Fraction] Subtract:                             \displaystyle m=\frac{2}{25}
7 0
2 years ago
Each ride at the fair costs $2.50. Alex will spend at least $15 for rides. Write an inequality to determine the least number of
goblinko [34]
0<r<6
the least number of ride he can go on is 0 which is none and the most is 6 because 15/2.50=6
4 0
3 years ago
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