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borishaifa [10]
3 years ago
13

in a fundraising committee of 90 people the ratio of men to women is 7:2. find the number of women required to join the existing

committee so that the ratio of men to women is 5:4​
Mathematics
1 answer:
LuckyWell [14K]3 years ago
7 0

Hello,

Step-by-step explanation:

90 = 9 x 10 = (7 + 2) x 10 = 70 + 20

70 men and 20 women

\frac{70}{5}  = \frac{20 + X}{4}

56 = 20 + X ⇔ X = 36

Answer : + 36 women

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Determine the vertex of the function f(x) = 2(x − 5)2 + 8.
choli [55]

Answer:

Vertex ( 5 ,8) .

Step-by-step explanation:

Given  : f(x) = 2(x − 5)² + 8.

To find : Determine the vertex of the function .

Solution : We have given

f(x) = 2(x − 5)² + 8.

Vertex form of parabola  : f (x) = a(x - h)² + k, where (h, k) is the vertex.

On comparing f(x) = 2(x − 5)² + 8. with vertex form of parabola.

a = 2 , h = 5 , k = 8 .

Vertex ( 5 ,8) .

Therefore, Vertex ( 5 ,8) .

7 0
3 years ago
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Two angles of a right angled triangle are (x+2)° and (2x+4)°.find x<br><br>​
padilas [110]

Answer:

28

Step-by-step explanation:

180=90+x+2+2x+4

90=3x+6

84=3×

x=28

6 0
2 years ago
Can this be reduced?
Andre45 [30]
This answer is 2/11
I used my brain lol !!!
5 0
2 years ago
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HELP!!!!!! I believe its B but I am not sure! :(
n200080 [17]

Answer:

A

Step-by-step explanation:

When solving for x as an exponent, we need to use logarithms in order to undo the operation and rearrange the terms. We use log rules to bring down the exponent and solve. Logarithms are the inverse operations to exponents and vice versa. We have one special kind of logarithm called the natural logarithm whose base is e. We write it as ln. Since our base is e here, we will use the natural logarithm to rearrange and isolate x.

e^{4x-1} =3

We begin by applying the natural logarithm to each side.

ln(e^{4x-1}) =ln(3)

Log rules allow use to rearrange the exponent as multiplication in front of the log.

(4x-1)ln(e) =ln(3)

ln e as an inverse simplifies to 1.

(4x-1)(1)=ln(3)

We now apply the inverse operations for subtraction and multiplication.

4x-1+1=1+ln(3)\\4x=1+ln(3)\\\frac{4x}{4} =\frac{1+ln3}{4} \\x =\frac{1+ln3}{4}

Option A is correct.

5 0
3 years ago
Car leases generally allow only a certain number of miles to be driven. Myung’s lease included a charge of 25 cents per mile for
faust18 [17]

Answer:

36,000

Step-by-step explanation:

if you multiply 12,000 and 3 you get 36,000.

4 0
3 years ago
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