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kirza4 [7]
3 years ago
5

Plzzz help me with this math im so confused!!

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
7 0

Answer:

I have made it in above picture

kotykmax [81]3 years ago
3 0

Answer:

2 A.)

1) 3-4x+8x^2-6+2x-5x^2

2) 8x^2-5x^2-4x+2x+3-6

3) 3x^2-2x-3

B.) 3x-5-7x^2+2+6x^2+5x

Step-by-step explanation:

please mark brainiest

please give 5 stars

thank you

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The ratio of boys to girls in Jamal's class is 3:2. If four more girls join the class, there will be the same number of boys and
olchik [2.2K]

Answer:

12 boys

Step-by-step explanation:

From the above question:

Number of boys = 3

Number of girls = 2

Boys: Girls

3:2

Let :

a = boys

b = girls

Hence, a : b = 3 : 2

a/b = 3/2  

Cross Multiply

2a = 3b .......... Equation 1

a = 3b/2

If four more girls join the class, there will be the same number of boys and girls

Hence,

a: b + 4 = 3 : 3

a/b + 4 = 3/3

Cross Multiply

3a = 3(b + 4)

3a = 3b + 12 ........ Equation (2)

From Equation 1: a = 3b/2

Substitute 3b/2 for a in Equation 2 we have:

3a = 3b + 12 .........Equation 2

3(3b/2) = 3b + 12

9b/2 = 3b + 12

Cross Multiply

9b = 2(3b + 12)

9b= 6b + 24

9b - 6b = 24

3b = 24

b = 8

Substitute 8 for b in Equation 1

a = 3b/2

a = 3 × 8/2

a = 24/2

a = 12

Therefore, the number of boys in the class is 12

7 0
3 years ago
If the equation y=1/2x+2 is changed to y=3x+2, what will be true about the graph of the equation
anygoal [31]
The first equation will go up by 2.5 and if it were changed to y=3X+2 it will go up by 8
6 0
3 years ago
Read 2 more answers
Help ASAP ill mark brainliest
Klio2033 [76]

Answer:

54:73

Step-by-step explanation:

There is more 54's then any other number

73 is the median

6 0
2 years ago
Choose the slope-intercept form of 3x + 2y = 5.
Nataly_w [17]

Answer:

y = -3x/2 + 5/2

Step-by-step explanation:

Well, basically what you do is modify it so that y is on one side.

3x+2y = 5

2y = 5-3x

y = (5-3x)/2

y = 5/2 -3x/2

So, the answer is the second option.

4 0
3 years ago
Read 2 more answers
What does 3.6÷(-9.8) equal?
valentinak56 [21]

Answer:

-0.36734693877

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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