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Elan Coil [88]
3 years ago
10

A class of 80 girls and 60 boys sponsored a car

Mathematics
2 answers:
yulyashka [42]3 years ago
5 0

Answer:

D

Step-by-step explanation:

80/100 x 40 = 32

60/100 x 30 = 18

18 + 32 = 50

50/(80+60) x 100 = 35.7

= 36

Thank you

Sliva [168]3 years ago
4 0

Answer:

36%

Step-by-step explanation:

class total: 140 students

40% of 80= 32

30% of 60=18

18+32= 50

50 divided by 140= .36 or 36 percent

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Question A:

Rewriting the table for f(x):

x      -1       0      1
f(x)   -7      -1      5

Notice that for every increase of one unit in 'x', there are an increase 6 units on f(x). Hence, the gradient of the slope of f(x) is 6. 

g(x) = 5x - 4 ⇒ This function follows the general form of the straight line equation, y = mx + c, where 'm' is the gradient and 'c' is the y-intercept.
Hence, the gradient of the slope of g(x) is 5.

The slope of f(x) is steeper than the slope of g(x).

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Question B:

The y-intercept is the value of y where a straight line crosses the y-axis (or when x is zero).

From the table of f(x), the y-intercept is -1 (this is the value of 'y' when 'x' is zero)

From the given function g(x) = 5x - 4, the y-intercept is -4. 

f(x) has a greater y-intercept.



8 0
3 years ago
What is the product of 2.416 and 10^5​? *
NeX [460]
ANSWER:

2.416x10^5

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8 0
3 years ago
Read 2 more answers
(100 – 40)/2 - 30 =?
Lena [83]
=(100-40)/2-30 =60/2-30 =30-30 =0
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3 years ago
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What is an equation of the line that passes through the point (−1,−6) and is parallel to the line 5x-y=9
satela [25.4K]

Answer:

-5x + y = -1 or y = 5x - 1

Step-by-step explanation:

5x - y = 9

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__ ______

-1 -1

y = 5x - 9

__________________________________________________________

-6 = 5[-1] + b

-5

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y = 5x - 1

If you want it in <em>Standard </em><em>Form</em>:

y = 5x - 1

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-5x + y = -1 >> Line in <em>Standard</em><em> </em><em>Form</em>

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3 years ago
In a geometric progression, the first tern is 81 and the fourth term is 24. find the common ratio​
lesantik [10]

Step-by-step explanation:

<h2><u><em>81/24</em></u></h2><h2><u><em>= 27/8</em></u></h2>

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