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DaniilM [7]
3 years ago
7

Susan has a collection of 52 nickels and dimes. If the number of nickels is three times the number of​ dimes, how many nickels a

nd how many dimes does she​ have?
Mathematics
1 answer:
olga_2 [115]3 years ago
3 0

Answer:

13 dimes and 39 nickles

Step-by-step explanation:

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Which type of statement switches and negates the hypothesis and the conclusion of the original conditional statement?
valentinak56 [21]
Inverse

Inverse - is a conditional statement that NEGATES both the hypothesis and the conclusion of the original conditional statement.
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Factor the given polynomial completely \. If the polynomial cannot be factored, say that is prime. y^4+10y^3+16y^2
Svetach [21]
I took out the greatest common factor, which is y^2 and factored from there
You’ll end up with y^2(y+2)(y+8)
Here’s my work :)

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3 years ago
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In science class, Danny had 200ml of liquid. However, he spilt some of the liquid and now has 170ml left. What is the percent of
Bond [772]

Answer:  170

Step-by-step explanation: To find the percent change, simply multiply this number by 100.

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3 years ago
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Pls help me no explain need ❤️❤️❤️
RoseWind [281]

Answer:

\displaystyle m=2

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> </u>

<u>Algebra I</u>

  • Reading a Cartesian plane
  • Coordinates (x, y)
  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (-5, 0)

Point (-9, -8)

<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 [Slope Formula]:                                                            \displaystyle m=\frac{-8-0}{-9+5}
  2. [Fraction] Subtract/Add:                                                                                 \displaystyle m=\frac{-8}{-4}
  3. [Fraction] Divide:                                                                                            \displaystyle m=2
3 0
3 years ago
Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

-4,-14

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

a=1\\b=18\\c=56

substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

x1=\frac{-18+10} {2}=-4

x2=\frac{-18-10} {2}=-14

7 0
4 years ago
Read 2 more answers
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