Ask question

Ask question

All categories

3 years ago

15

in a class, the ratio of boys to girls is four to three. if there are 20 boys in the class, how many girls are there? process pl

ss

1 answer:

mafiozo [28]3 years ago

7 0

15 i think????jdjdnrndrnrnd

You might be interested in

In AQRS OR=7, RS=11 M<=42 IN AUVT VT=26, TU= 44 M

N76 [4]

I think the answer to In AQRS OR=7, RS=11 M<=42 IN AUVT VT=26, TU= 44 M is THE TRIANGLES ARE NOT SIMILAR.

6 0

3 years ago

the length of a rectangle is 5 cm less than 3 time its width. if the perimeter of the rectangle is 54 cm, find the length and wi

castortr0y [4]

$length = 3x - 5 \\ width \: = x \\ p = 2l + 2w \\ 54 = 2(3x - 5) + 2x \\ 54 = 6x - 10 + 2x \\ 54 = 8x - 10 \\ 64 = 8x \\ x = 8 = width \\ 3(8) - 5 = 24 - 5 = 19 \\ length = 19$

6 0

3 years ago

Factor using the identity: a3 + b3 = (a + b)(a2 – ab + b2) 8z3 + 27

vivado [14]

Answer: this is our required factor i.e.

$8z^3+27=(2z+3)(4z^2-6z+9)$

Explanation:

Since we have given that

$8z^3+27$

As we know the identity , which says that

$a^3+b^3=(a+b)(a^2-ab+b^2)$

So, we can use this here ,

$8z^3+27=(2z)^3+3^3\\\\=(2z+3)((2z)^2-2z\times 3+3^2)\\\\=(2z+3)(4z^2-6z+9)$

Hence this is our required factor i.e.

$8z^3+27=(2z+3)(4z^2-6z+9)$

7 0

3 years ago

Read 2 more answers

Use the recursive formula to answer the question.

Oliga [24]

Answer:

5

Step-by-step explanation:

7 0

2 years ago

7) What is the area of the parallelogram.

monitta

Answer:

78

Step-by-step explanation:

A=base*height

10*7.8

8 0

2 years ago