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photoshop1234 [79]
3 years ago
5

70 PTS HELP PLS!!!!!

Mathematics
1 answer:
Tom [10]3 years ago
3 0

Answer:

28*4/7

Step-by-step explanation:

4/7

   the 7 represents the 28.  28 is a multiple of 7.

<u>28</u>  *   <u>4</u>   =     <u>112</u>   =   16

 1        7           7

<u><em>there are 16 girls</em></u>

also we know 4*7=28 so if we count the multiples of 4, there is 4 8 12 and the 4th multiple is 16.

<u><em /></u>

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PLEASE HELP WILL GIVE BRAINLIEST. GEOMETRY REFLECTIONS. INCLUDE EXPLANATION. BOGUS ANSWERS WILL BE REPORTED
frutty [35]

we are given point as

(x,y)=(5,7)

translating 3 units to right side

It means we will subtract 3 to x-value

and we get

(x,y)= (5-3,7)

(x,y)=(2,7)

now, it is reflected about x-axis

so, we can change y-value as -y

so, we get our new point as

(x,y)=(2,-7)

now, we have to find it's image reflection

so, we will get

(x',y')=(-7,2).........Answer

5 0
3 years ago
Y varies directly as x squared. y is 18 when x is 3. Find y if x is 4. Any help? thanks ​
stealth61 [152]

Answer:

Step-by-step explanation:

y ∝ x^2

Introducing the proportionality constant, we have  

y = kx^2

Given : y= 18 when x = 3

substitute the given values in order to get the constant

i.e 18 = k x 3^2

     18 = 9k

      k = 2

therefore the formula connecting  x and y

⇒ y = 2x^2

To find y if x is 4, just substitute x = 4 into the formula connecting x and y

i.e y = 2 x 4^2

       = 2 x 16

       = 32

4 0
3 years ago
Which statements are always true about regular polygons
Feliz [49]

Answer:

The answer is...

Step-by-step explanation:

Each interior angle measures 108 degrees. All of the angles are congruent. The sum of the measures of the interior angles is 108(5-2) degrees.

6 0
3 years ago
Triangle has sides of 21 and 17. Which is a Length of 3rd side
matrenka [14]
The answer could be anything if you don't have measures of the angles
7 0
3 years ago
Find the simple interest: Principal: $3020 Interest Rate: 5% Time: 6 months​
Andrews [41]

Answer:

A = $3094.58

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

Simple Interest Rate Formula: A = P(1 + r)ⁿ

  • A is the final amount
  • P is the principal amount
  • r is the rate
  • n is the time (in years)

Step-by-step explanation:

<u>Step 1: Define variables</u>

A = ?

P = 3020

r = 0.05

t = 6 months = 0.5 years

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

  1. Substitute:                    A = 3020(1 + 0.05)^0.5
  2. Add:                              A = 3020(1.05)^0.5
  3. Evaluate:                       A = 3020(1.0247)
  4. Multiply:                        A = 3094.58

And we have our final answer!

5 0
3 years ago
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