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2 years ago

7

HELP PLEASE ILL GIVE BRAINLIEST

1 answer:

BlackZzzverrR [31]2 years ago

6 0

The answer is NOT A) because the LCD of A) is 30.

The answer is B) 2/3, 1/9, 1/15 because the LCD of B) is 45 and I figured out the LCD by looking at all the denominators and they all can go into 45 by multiplication and division

The answer is NOT C) because the LCD of C) is 15

The answer is NOT D) because the LCD of D) is 189

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2/9 of the members are boys in a community service club. if there are 95 more girls than boys, how many girls are there in club?

Talja [164]

Answer:

There are 171 members in the club

Number of boys = 38

Number of girls = 133

Step-by-step explanation:

Let

x = total members of the club

Boys = 2/9x

if there are 95 more girls than boys

Girls = 2/9x + 95

how many girls are there in club?

Total members in the club = boys + girls

x = 2/9x + 2/9x + 95

x = 2+2/9x + 95

x = 4/9x + 95

x - 4/9x = 95

9x-4x/9 = 95

5/9x = 95

Divide both sides by 5/9

x = 95 ÷ 5/9

= 95 × 9/5

= 855/5

= 171

boys = 2/9x

= 2/9 * 171

= 342 / 9

= 38

Girls = 2/9x + 95

= 38 + 95

= 133

Total = 38 + 133

= 171

There are 171 members in the club

Number of boys = 38

Number of girls = 133

5 0

2 years ago

25 POINTS! factor the trinomial:<img src="https://tex.z-dn.net/?f=x%5E2-2x-2" id="TexFormula1" title="x^2-2x-2" alt="x^2-2x-2" a

riadik2000 [5.3K]

( x − 1 + i ) ( x − 1 − i )

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

PLZ HELP ME BY THE END OF THE DAY

nlexa [21]

$3x^{2} +1=28$

Step 1 : subtract 1 from both sides

$3x^{2} =27$

Step 2 : Divide both sides by 3

$\frac{\frac{3x^{2} }{3} }{\frac{27}{3} }$

$x^{2} = 9$

Step 3 : Find the square root of 9

$\sqrt{9} = 3$

x= (-3,3)

remember negative × negative = positive

6 0

3 years ago

When solving the system using the additional/elimination method, which variables will cancel?

iogann1982 [59]

Answer:

the x terms

Step-by-step explanation:

there is a +x and a -x.

x-x=0,

x will cancel out

6 0

2 years ago

Y=99.99+23.75(x-1) as a Y=ax+b equation

Hatshy [7]

Answer:

$y = 23.75x + 76.24$

Step-by-step explanation:

We want to rewrite

$y = 99.99 + 23.75(x - 1)$

in the form

$y = ax + b$

We expand to get:

$y = 99.99 + 23.75x - 23.75$

Regroup similar terms:

$y = 23.75x - 23.75 + 99.99$

Simplify:

$y = 23.75x + 76.24$

This is now of the form

$y = ax + b$

where a=23.75 and b=76.24

6 0

3 years ago