MATHEMATICS MIDDLE SCHOOL

PLEASE BE FAST !!!!!!John bought 6 dumplings for $3.00. Let x represent the number of dumplings purchased, and let y represent the total cost. Graph the line that represents the proportional relationship.

15 POINTS

Answers

Answer 1
Answer:

Answer:

I think this is right but I may be wrong

Step-by-step explanation:
Answer 2
Answer:

Answer:

Easy! Y=0.5x

Step-by-step explanation:

First, we have to find unit rate.

6/6 = 1

3.00 / 6 = 0.5

Y=0.5x

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My assignment says The perimeter of a rectangle is 30 cm.Find the whole-number dimensions of the rectangle with:
a) the greatest area
b) the least area
can someone explain?

Answers

Let side be "a" cm. So another side is (30-2a)/2=15-a
S=ab=a(15-a)=15a-a^2 - parabola
maximum when  a =  -15/-2=7.5 cm 
When a=7.5 all sides are 7.5 cm 
So it's a square. S=a*a=7.5*7.5=56.25 cm^2 - max
There is no global minimun for S.(look at the graphic)

What is (-9)(18)? Please halp me

Answers

-162 I'm pretty sure
-9 × 18 = -162

Think of it like
-9 × 10 = -90 and -9 × 8 = -72
-90 + -72 = -162

Please help :) .......

Answers

idk I think it is 53.33


It is 144. 
6 x 8 = 48 (two identical triangles)
4 x 8 = 32
6 x 4 = 24
10 x 4 = 40
if you add them all up you get 144.

Write the fraction as a percent. Round to the nearest tenth of a percent if necessary. 49/100

Answers

49 ÷ 100

= 0.49

0.49 x 100 = 49%

10 cups Equals how many pt

Answers

The answer you are looking for is 5

20. AB is 25 mm, AC is 45 mm. Find BC.
(6)
- ده​

Answers

BC = 20 because 45 - 25 = 20
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