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Vesna [10]
3 years ago
13

Answer this please thanks

Mathematics
2 answers:
taurus [48]3 years ago
6 0

Answer:

No

Step-by-step explanation:

The first 3 boxes are proportional since they have a ratio of 1:3, but 6:21 is not proportional to the others.

d1i1m1o1n [39]3 years ago
3 0

Answer:

No it is not proportional.

Step-by-step explanation:

This is not proportional because

2 times 3 = 6

4 times 3 = 12

8 times 3 =  24

but,

6 times 3 = 18 not 21 so it is not proportional.

Hope this helped! Ask me any questions if needed!

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A gold earring has a volume of 0.55cubic centimeters and a mass of 9.9grams. Calculate its density.
IgorC [24]

Answer:

.018 Kg/cm^3

Step-by-step explanation:

p = m \div v \\

Density (P) is equal to the mass (9.9g) divided by volume (.55cm^3)

= 9.9 \div .55

= 18g/cm^3

=.018kg/cm^3

5 0
3 years ago
What is the surface area of this rectangular pyramid?
xz_007 [3.2K]
Pretty sure it’s 42.5 cm.
5 0
2 years ago
Calculate the amount of air in a room 6m long, 5m wide and 3mm high.​
kherson [118]

Answer:

90.000 m³

Step-by-step explanation:

  • L = 6 m
  • W = 5 m
  • H = 3 mm = 3.000 m

V = L × W × H

V = 6 × 5 × 3.000

V = 30 × 3.000

V = 90.000 m³

4 0
2 years ago
Read 2 more answers
Troy and Lisa were shopping for school supplies. Each purchased different quantities of the same notebook and thumb drive. Troy
kari74 [83]

Answer:

Notebook is $4

Thumb drive is $23

Step-by-step explanation:

Let notebooks be x and thumb drives be y

6x+7y=$185

14x+12y=$332

These two are simultaneous equation. Multiplying the first equation by 7 and second by 3 we obtain

42x+49y=$1295

42x+36y=$996

Subtracting the third equation from the fourth

996-1295=-$299

(36-49)y=-23y

-23y=-$299

y=$299/13=$23

To get the value of x, we substitute the value of y into the first equation

6x+(7*23)=$185

6x=$185-$161

6x=$24

x=$4

Therefore, price of notebook is $4, price of thumb drive is $23

4 0
3 years ago
Determine the intercepts of the line 4x-3y=17
bezimeni [28]

Answer:

x-intercept = 17/4 and y = -17/3

Step-by-step explanation:

To find the intercepts: set x = 0 for the y-intercept and solve the equation and set y =0 for the x- intercept and solve the equation.

To

4x - 3y = 17

4(0) - 3y = 17

0 - 3y = 17

  y = 17 /-3

 y = -17/3 = -5 2/3       y-intercept = -5 2/3.

The ordered pair on the graph is (0, -17/3)

   4x - 3(0) = 17

     4x - 0 = 17

      4x = 17

       x = 17/4       x-intercept = 17/4

    The ordered pair on the graph is (17/4, 0)

3 0
3 years ago
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