the ratio is 8:7 if there were a total of 195 people how many girls were there and how many Boys were there

Answers

Answer 1
Answer: ratio is 8:7
add them: 15
divide: 195/15= 13
8 times 13 and 7 times 13
104 91

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The quotient of a number 2, minus 9, is 14
An investment of $27,000 was made by a business club.The investment was split into three parts and lasted for 1 year.The first part earned 8% interest,the second 6% and the third 9%.total interest from the investment was $2130.the interest from the first investment was three times the interest from the second find the amounts of the three parts of investments

Which expressions are equal to 6^3 x 2^6/2^3? A: 12^6 B: 12^3 C: 2^6 x 3^3 D: 6^3 E: 2^3 x 3^3

Answers

6³ x 2⁶  / 2³

Applying laws of indices:   xᵃ / xᵇ   = xᵃ₋ᵇ

6³ x 2⁶⁻³

 6³ x 2³                Applying law of indices    aⁿ ₓ bⁿ  = (a ₓ b)ⁿ

=(6 x 2)
³

= 12³

Option B.

I hope this helped.

Answer:

B

Step-by-step explanation:

What is the mode of 72

Answers

36 i think is the answer
I believe the right answer would be 36

What is the answer to 45% of 432

Answers

The answer is 194.4.

Write expression using a positive exponent1. 5⁻ ²
2. -7 ⁻¹
3. t⁻⁶
4. n⁻²
write each expression as an expression using a negative exponent other than -1
5. 1/3⁴
6.1/9²
7.1/49
8.1/8

Answers

1.\ \ 5^(-2)=(\frac15)^2=\frac1{5^2}\n\n 2.\ \ -7^(-1)=-(\frac17)^1=-\frac1{7^1}\n\n 3.\ \ t^(-6)=(\frac1t)^6=\frac1{t^6}\n\n 4.\ \ n^(-2)=(\frac1n)^2=\frac1{n^2}\n\n\n 5.\ \ (\frac13)^4=3^(-4)\n\n 6.\ \ (\frac19)^2 =(\frac1{3^2})^2 =(3^(-2))^2=3^(-4)\n\n 7.\ \ \frac1{49}=\frac1{7^2}=7^(-2)\n\n 8.\ \ \frac1{8}=\frac1{2^3}=2^(-3)

on a coordinate plane, the vertices of a rectangle are (-1, 1), (3, 1), (-1, -4), and (3, -4). what is the perimeter of the rectangle

Answers

Answer:

18 unit

Step-by-step explanation:

By plotting the given points on the coordinate plane ( shown below )

We get a rectangle.

Suppose ABCD is a rectangle such that,

A≡(-1,1), B≡(3,1), D≡(3,-4) and C≡(-1,-4),

By the distance formula,

AB=√((3-(-1))^2+(1-1)^2)=√((3+1)^2+0)=√(4^2)=4\text{ unit}

BC=√((3-3)^2+(-4-1)^2)=√(0+5^2)=√(5^2)=5\text{ unit}

∵ Perimeter of a rectangle = 2 ( sum of any two adjacent sides )

Thus, the perimeter of the rectangle ABCD = 2(AB + BC)

= 2(4+5)

= 2(9)

= 18 unit

The perimeter is 18.....i hope i helped you

What is 9/12 simplified? Thanks

Answers

(9:3)/(12:3) =  (3)/(4)
(9~divided~by~3)/(12~divided~by~3) =  (3)/(4)

(3)/(4) is a simplified form for (9)/(12)