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mafiozo [28]
2 years ago
7

What are two equivalent ratios for the ration given 10 to 15 and 11 to 20

Mathematics
1 answer:
ruslelena [56]2 years ago
6 0

Answer:

by experts to help you in doubt clearance & scoring excellent marks in exams.

Step-by-step explanation:

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Two students, Stephanie and Maria, want to find out who has the higher GPA when compared to each of their schools. Stephanie has
Lubov Fominskaja [6]

Answer:

z score for Maria is higher than Stephanie

Step-by-step explanation:

for Stephanie

GPA = 3.85

Mean of her school GPA = 3.1

Standard deviation = 0.4

Z =\frac{x -\mu}{\sigma}

  = \frac{3.85 -3.1}{0.4}

Z =1.875

for Maria

GPA = 3.80

Mean of her school GPA = 3.05

Standard deviation = 0.2

Z =\frac{x -\mu}{\sigma}

  = \frac{3.80 -3.05}{0.2}

Z =3.750

therefore z score for Maria is higher than Stephanie

4 0
3 years ago
Read 2 more answers
Please help with these problems! Will mark answer as brainliest and give 30 points. You have to show your work for each problem.
gulaghasi [49]

Answer:

1) (2x + 2)(x + 2)

2)  2(x + 1)(x - 1)

3) (x^2 + 3)(x^2 - 3)

4) 2x(x + 5)(x - 2)

5) (5x + 2y)(5x - 2y)

Step-by-step explanation:

1)

2x^2 + 6x + 4

= 2x^2 + 4x + 2x + 4

= 2x(x + 2) + 2(x + 2)

= (2x + 2)(x + 2)

2)

2x^2 - 2

= 2(x^ 2 - 1) (The difference of two squares)

= 2(x + 1)(x - 1)

3)

x^4 - 9 (The difference of two squares)

=(x^2 + 3)(x^2 - 3)

4)

2x^3 + 6x^2 - 20x

= 2x(x^2 + 3x - 10)

= 2x(x + 5)(x - 2)

5)

25x^2 - 4y^2         (The difference of two squares)

= (5x + 2y)(5x - 2y)

4 0
2 years ago
PLZ HELP THIS IS MY LAST QUESTION SO PLZ HELP :(
svet-max [94.6K]
These is yes!!! algebra one or two
6 0
2 years ago
Read 2 more answers
Latifah drew this obtuse, scalene triangle.
kumpel [21]
Quadrilateral that is a parallelogram
7 0
3 years ago
1 point
galina1969 [7]

Answer:

(B) 20

Step-by-step explanation:

Let small puppet be represented by-----------------s

Let large puppet be represented by-----------------l

Total number of puppets expression will be: s+l =25---------a

The expression for total costs will be : 1$ s + $2l=$30-------b

Equation a can be written as; s= 25-l ------------c

Use equation c in equation b as

$1( 25-l )+$ 2l = $30

25-l + 2l = 30

25+l =30

l= 30-25 =5

l, large puppets = 5

s, small puppets = 25-5 = 20

Answer choice A is incorrect because 25 is the total number of all puppets

Answer choice C and D are incorrect because the numbers are less that that of small puppets.

3 0
3 years ago
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