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Andrei [34K]
3 years ago
10

(6x-9)+5=2 can you solve this

Mathematics
2 answers:
ehidna [41]3 years ago
7 0
(6x -9) + 5= 2
= -54 + 5 
=  2
mihalych1998 [28]3 years ago
3 0
(6x-9)+5=2
3(6x-9)=0
18x-27
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There are 180 girls in a mixed school. lf the ratio of girls is to boys is 4:3 , the total number of students in the school is w
Angelina_Jolie [31]

Answer:

315

Step-by-step explanation:

No. of girls be g

No. of boys be b

g= 180

g/b = 4/3

b = 3g/4

b= 3(180/4)

b= 3*45

b= 135

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Find b+g

= 135 + 180

= 315

3 0
3 years ago
What conjecture can you make about the sum of the first 22 positive even numbers?
alekssr [168]

Answer:

A.) The sum of the product of the number of terms and the number of terms plus one.

Step-by-step explanation:

So, we have the sum of the first 22 positive even numbers:

S = 2 + 4+ 6 + ... + 44

We know the sum of such sequence is given by the (sum of the first number (2) and the last number (44)) multiplied by the number of terms (11).

S = (2 + 44) * 11 = 46 * 11 = 506

Answer A tells us it should be the sum of the number of terms (22) by the number of terms plus one (22 + 1 = 23).

S = 22 * 23 = 506

That's confirmed.

Answer B would give 22 * 21 = 462, so it's not right

Answer C would give 22 * 2 = 44, obviously not right

Answer D would give 22 * 22 = 484, close but not right.

7 0
3 years ago
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Alika [10]

Answer:

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Step-by-step explanation:

\frac{(0.87*100)-0}{99} = 87/99

Simplify 87/99, which is 29/33

3 0
3 years ago
if the unit selling price is $2.50 and the unit cost is $1.00, what action is needed to maintain the gross margin percentage whe
sukhopar [10]
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8 0
3 years ago
Which equation represents an inverse variation? y = 2x y = x/3 y =4/x y = –5x
Marizza181 [45]
First of all, you should know that:
 direct variation:
 y = c * x
 Inverse variation:
 y = c / x
 where, c is any number that belongs to the real ones.
 answer:
 An equation that represents an inverse variation is
 y = 4 / x
7 0
3 years ago
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