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krok68 [10]
2 years ago
10

1-6. Indicate whether each table or graph represents a proportional

Mathematics
1 answer:
Pie2 years ago
7 0

Answer:

Step-by-step explanation:

Proportional relationship means,

x ∝ y

x = ky

\frac{x}{y}=k where 'k' is the proportionality constant.

From table (1),

\frac{1}{5}=\frac{2}{9}\neq  \text{Constant}

Therefore, relationship is not proportional.

From table (2),

\frac{1}{6}=\frac{3}{18}=\text{constant}

True.

So the relationship will be proportional.

From table (3),

\frac{\text{hours}}{\text{Miles}}= \frac{2}{110}=\frac{5}{175}=\frac{1}{55}

Which is constant.

Therefore, relationship will be proportional.

From table (4),

\frac{\text{Hours}}{\text{Paid}}=\frac{3}{29.25}=\frac{5}{48.75}=0.103

Which is constant for every term.

Therefore, relationship will be proportional.

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dimaraw [331]
The answer:
A: yes
b: no
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3 0
3 years ago
I need to solve this can anyone solve this?
xenn [34]

Answer:

d = 7

Step-by-step explanation:

7 times 5 = 35

or

35/5 = 7

4 0
3 years ago
You ask 120 randomly chosen students to name their favorite ice cream flavor. There are 1800 students in the school. Based on th
Stella [2.4K]
39/120 = x / 1800....39 choc. chip to 120 students = x choc. chip to 1800 students

now we cross multiply because this is a proportion
(120)(x) = (39)(1800)
120x = 70200
x = 70200/120
x = 585 <===

or u could do it this way as well...
39 out of 120 picked chocolate chip....
39/120 = 0.325 = 32.5%....so 32.5% chose chocolate chip.

32.5% of 1800 = 0.325(1800) = 585 <==
5 0
3 years ago
Which expression is equivalent to 100 n^2 -1?
levacccp [35]

Answer:

a

Step-by-step explanation:

100n^2 = (10n^2)

-1 = -(1^2)

5 0
3 years ago
Read 2 more answers
Please help with 16 &amp; 17
son4ous [18]

Answer:

16. Parallelogram

17. x=3, y=9

Step-by-step explanation:

16. You should graph it to get a visual. But using the given points, you can tell that the slopes for the lines AC and BD are the same, thus meaning those lines are parallel. The same for lines AD and BC.


17. 5x+2=17, so x= 3

3y-6=21, so y=9

5 0
2 years ago
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