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Jlenok [28]
3 years ago
8

Your work or words should justify your answer (explain how you know). As a math teacher, Josie frequently makes photocopies of f

un activities for her students to do. When the copies come out of the copy machine, they form a stack. This table shows the relationship between the number of copies in the stack, x, and the height (in millimeters) of the stack, y. x (copies) y (millimeters) According to the values in the table, do x and y have a proportional relationship? yes no​

Mathematics
1 answer:
Doss [256]3 years ago
7 0

Answer:

Yes, because by dividing x by his equivalent y, you find a constant of proportionality being 10.

x / y = 10

Step-by-step explanation:

20 / 2 = 10

50 / 5 =10

60 / 6 = 10

70 / 7 = 10

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The price of a motorbike is $1,500. How much do you need to pay if it was 15% discount?
amm1812

Answer:

Hey!

Your answer is that the motorbike will cost $1,275 after the 15% discount

Step-by-step explanation:

15% of $1,500 is $225 so we minus this value away from $1,500 which gives us $1275!

HOPE THIS HELPS!!

8 0
3 years ago
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Consider the function.
Mariana [72]

Answer: (2 1/2, 0) (the last option)

Step-by-step explanation:

I guess the function is:

f(x) = (2  1/2) - (3  1/2)*x

now, the rule for f-1(x) that we know is:

f-1( f(x) ) = x.

So if we want to find the x-intercept of f-1(x), we must evaluate it in f(0)

f-1(f(0)) = 0.

And we have that f(0) = (2  1/2) - (3  1/3)*x = 2  1/2

This means that the x-intercept of f-1(x) will be when x= 2  1/2, so the intercept is:

(2 1/2, 0)

5 0
3 years ago
What number is 20 less than 150% of 80
patriot [66]

Answer:

100

Step-by-step explanation:

"What number" means a variable, like x.

"Is" means equals.

"Less than" means subtracted from.

Percent means out of 100.

"Of" means multiplication.

x = (150/100) 80 - 20

x = 120 - 20

x = 100

5 0
4 years ago
A triangle that contains angles of 35°, 90°, and 55° is a(n) _______ triangle. A. right B. acute C. obtuse D. equiangular
quester [9]
Since one of the angles is 90 degrees (right angle) and the other two angles are less than 90 degrees (acute angles) it is a right triangle because it cousins of right angle. Hope this helped!
4 0
3 years ago
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I need help making a coordinate proof and it starts with if a quadralateral, then its diagnoles are perpendicular.
zlopas [31]

Answer:

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1. Show that both pairs of opposite sides are congruent.  

2. Show that both pairs of opposite sides are parallel

3. Show that a pair of opposite sides are congruent and parallel

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In this activity, we will use the Distance, Midpoint and Slope Formulas that we learned in Algebra 1 to show congruent, bisected and parallel segments.

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Step-by-step explanation:

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3 years ago
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