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Olin [163]
3 years ago
12

Your history teachers is going to give you a 92 point assessment. There are 2 point questions and 3 point questions. If there is

a total of 40 questions on the assessment, how many questions are worth 2 points?
Mathematics
2 answers:
Sedaia [141]3 years ago
6 0

Answer: 28

Step-by-step explanation:

Let x be the number of 2 mark questions

Let y be the number of 3 mark questions

x+y=40. ---------------(1)

2x+3y=92 ---------------(2)

Solve equation (1) for y

y=40−x

Substitute

y=40−x in equation (2)

2x+3(40−x)=92

2x+120−3x=92

2x−3x=92−120

−x=−28

x=28

Substitute

x=28 in equation (1)

28+y=40

y=40−28=12

Number of 2 mark questions

=28

Number of 3 mark questions

=12

Temka [501]3 years ago
4 0

Answer:

28

Step-by-step explanation:

x = 2 point questions, y = 3 point questions

x + y = 40

2x + 3y = 92

Solving this we get x = 28, y = 12 so the answer is 28.

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8 0
3 years ago
A bicyclist traveled with a speed of 12 km/h from a camping ground to a station, located 60 km away. Write a formula expressing
r-ruslan [8.4K]
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8 0
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Read 2 more answers
PLEASE HELP ME AS SOON AS POSSIBLE
ZanzabumX [31]

The parent function of g(x) = |x - 7| +6 is f(x) = |x|

<h3>How to determine the parent function?</h3>

The function is given as:

g(x) = |x - 7| +6

The above function is an absolute function, and the parent function is f(x) = |x|

Hence, the parent function of g(x) = |x - 7| +6 is f(x) = |x|

<h3>The reflection</h3>

When f(x) is reflected across the x-axis, we have:

f'(x) = -|x|

When f(x) is reflected across the y-axis, we have:

f'(x) = |x|

<h3>Stretching and Compression</h3>

When f(x) is stretched horizontally by a factor k

g'(x) = |kx|

When f(x) is stretched vertically by a factor k

g'(x) = k|x|

<h3>Horizontal Shift</h3>

When f(x) is shifted horizontally by k units

f'(x) = |x ± k|

<h3>Vertical Shift</h3>

When f(x) is shifted vertical by k units

f'(x) = |x| ± k

See attachment for the graph of g(x)

Read more about function transformation at:

brainly.com/question/

#SPJ1

3 0
1 year ago
1.) 268 = 4x - 8(5 - 5x)
Andrej [43]
268=4x-40-40x
308=-36x
x=308/-36
x=-8.555..
x=-8.6 to 1 sf

I think? Sorry if I got something wrong!
8 0
3 years ago
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