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SSSSS [86.1K]
3 years ago
7

4 books for 1$12.00 3 books for $9.00 What is the price per book? What is the constant of proportionality

Mathematics
1 answer:
Valentin [98]3 years ago
6 0

Answer:

the price per book is $3 the constant of proportionality is 3

Step-by-step explanation:

12 divided by 4 is 3 and 9 divided by 3 is 3 so it means that the price for 1 book is going to be 3 and for every book you buy the original value will be 3.

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I need help with this
SIZIF [17.4K]

Answer:

pull out a calculater then replace x with the number 2 (-2)+5=

Step-by-step explanation:

2 (-2)+5=

2 (-1)+5=

2 (1)+5=

4 0
3 years ago
Someone help plz correct answers only and explain how you got the answer
Harrizon [31]
Δ YX Z   And Δ VUW are SIMILAR because all their respective angles are congruent:

∠ y = 90°; ∠ v = 90°
∠ x = 67°; ∠ u = 67°
∠ z = 23°; ∠ w = 23°

Two triangles are similar if their related angles are congruent (answer B)

7 0
3 years ago
What is the solution to this system of linear equations 3x 2y 14 5x y 32
Leya [2.2K]

After simplification, the solution of this system of linear equation is (3.85, 12.75).

In the given question we have to find the solution to this system of linear equations 3x-2y=14 or 5x+y=32.

The given system of linear equations is:

3x-2y=14.......................(1)

5x+y=32.......................(2)

Multiply equation 2 by 2, we get

10x+2y=64.......................(3)

Add equation 3 by 1, we get

10x+2y+3x-2y=64-14

13x=50

Divide by 13 on both side, we get

x=3.85

Now put the value of x in equation 2

5(3.85)+y=32

19.25+y=32

Subtract 19.25 on both side, we get

y=12.75

So, the solution of this system of equation is (3.85, 12.75).

To learn more about system of linear equation link is here

brainly.com/question/27664510

#SPJ4

6 0
1 year ago
Your teacher is selecting class partners by drawing names out of a bag. There are 12 girl's names and 10 boy's names. What is th
sasho [114]
The answer would be A)20/77.
The reason is that without replacement it would go (10/22)*(12/21)=0.2597
You can do the easy route I did then do (20/77) which would also give you 0.2597.
8 0
2 years ago
Read 2 more answers
What equation do you get when you solve z-m=z+bx for x
Sonbull [250]
Z-m=z+bx

z-m-z=z+bx-z

-m=bx

bx=-m

bx/b=-m/b; b=0

x=-m/b; b=0
5 0
3 years ago
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