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joja [24]
3 years ago
6

Pls hrlp me on this​

Mathematics
1 answer:
Travka [436]3 years ago
8 0

Answer:

0,4

Step-by-step explanation:

1. 2/5=0,4; 6/15=0,4; 8/20=0,4. It means, the constant of proportionality is 0,4.

2. if the constant value is 0,4, then x:1=0.4 ⇒ x=0,4

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A. 22<br> B. 30<br> C. 40<br> D. 65
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Assume that the price of a combo meal is the same price as purchasing each item separately. Find the price of a pizza, a coke, a
maria [59]

Answer:

pizza: $4, coke: $3, chips: $2

Step-by-step explanation:

Lets make the price of a pizza=p a coke= k and a bag of chips=c

then we have the following equations

p+k+c=9

p+2k=10

2p+2c=12

Because p is common in all the equations we shall make it the subject of each equation.

p=9-(k+c)...........i

p=10-2k..............ii

p=6-c...................iii

We then equate i and iii

9-(k+c)=6-c

9-k-c=6-c

putting like terms together we get:

9-6=-c+c+k

1 coke, k=$3

replacing this value in equation ii

we get  p=10-2(3)

p=10-6= 4

1 pizza, p=$4

replacing this value in equation iii

4=6-c

c=6-4

=2

a bag of chips, c=$2

Thus, a pizza, a coke and a bag of chips= pizza: $4, coke: $3, chips: $2

5 0
3 years ago
20 POINTS!!!
Akimi4 [234]

Answer:

the line will pass through yellow and red

6 0
4 years ago
Read 2 more answers
Amy wants to carpet a room that is 12 feet by 8 feet. How many square yards of carpet will she need to complete the room?
Elodia [21]
Firstly, you should find how many square yard is in one square foot.
One square yard= Nine square feet.
then, in order to find the area, you need to multiply 12 by 8, which gives you 96 square feet.
In order to find the square feet, you need to divide 96 by 9 (as 1 square yard is equal to 9 square feet)
When you divide these, you get 10.66
Therefore, Amy needs 10.66 square yards of carpet.
Hope this helps :) 
4 0
3 years ago
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