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otez555 [7]
3 years ago
13

Can you explain and answer this question please?

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
7 0
I am thinking on this question hold up
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In a class of 23 student the girls were 7 more than the boys how many boys were in the class​
Softa [21]

Answer:

x=# of boys

x+7=# of girls

x+x+7=25

2x+7=25

2x=25-7

2x=18

x=18/2

x=9 boys

x+7=16 girls

 

If you don't understand variables use trial and error.

 

Boys     Girls

1           8

2           9

3           10

4           11

5           12

6           13

7           14

8           15

9           16   9+16=25 students

 

You could start this way...

 

Boys     Girls

12        13

11        14

10        15

9          16     16 is 7 more than 9

5 0
3 years ago
A function is graphed on a coordinate grid. As the domain values approach infinity, the range values approach infinity. As the d
Sloan [31]

Answer:

D) Quadratic

Step-by-step explanation:

A function is graphed on a coordinate grid.

  • As the domain values approach infinity, the range values approach infinity.

       Domain: If x\rightarrow \infty then

       Range: y\rightarrow \infty

  • As the domain values negative infinity, the range values approach infinity.

       Domain: If x\rightarrow -\infty then

       Range: y\rightarrow \infty

We need to choose correct option which follows given domain and range.

Only quadratic function will follow the rule because it has even degree polynomial.

Quadratic function: f(x)=ax^2+bx+c

Degree = 2 and leading coefficient is positive.

Domain: x\belong (-\infty,\infty)

Range: y\belong (b,\infty)

Hence, D is correct option.

4 0
3 years ago
Read 2 more answers
This graph represents a proportional relationship between the number of months, x, data is used on a cell phone and the total co
valentinak56 [21]

Answer:

The equation that represents the graph is y = 40x

The new equation would be y = 45x

Step-by-step explanation:

As y increases by 40, x increases by 1, so 40/1, or 40

New equation: $90 per 2 months, y = 90, x = 2, 90/2 = 45

3 0
3 years ago
Find the slope: 1/8x + 3y = 3
kifflom [539]
I'd have to say the slop is - 1/24
4 0
3 years ago
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Here’s some point I wanted to give away to people that needs to ask about their assignment! I really felt like giving back to th
Veseljchak [2.6K]

Answer:

80

Step-by-step explanation:

thank you so much for the points, have a great day.

4 0
3 years ago
Read 2 more answers
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