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tensa zangetsu [6.8K]
3 years ago
10

Jeff uses the expression 2(3b + 1) to determine how many books (b) he needs to order for his store. If b = 12, how many books sh

ould Jeff order?
Mathematics
2 answers:
kari74 [83]3 years ago
4 0

Answer:

73

Step-by-step explanation:

you write 12 instead of b

UkoKoshka [18]3 years ago
4 0

Answer:

73

Step-by-step explanation:

Hope this helped!

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(x-3y+ 3z=-4<br><br> 2x+3y-z =15<br><br> (4x-3y- z=19<br><br> - What is the solution to the system?
lesya [120]

Answer:

x=5,y=1 and z=-2

Step-by-step explanation:

We are given that system of equation

x-3y+3z=-4 (I equation)

2x+3y-z=15  (II equation )

4x-3y-z=19  (III equation )

Equation II multiply by 3 then add  with equation I

Then, we get

7x+6y=41 ....(Equation IV)

Subtract equation II from equation III then we get

2x-6y=4  (equation V)

Adding equation IV and equation V then, we get

9x=45

x=5

Substitute x=5 in equation V then, we get

2(5)-6y=4

10-6y=4

6y=10-4=6

y=1

Substitute x=5 and y=1 in equation then, we get

5-3(1)+3z=-4

2+3z=-4

3z=-4-2=-6

z=\frac{-6}{3}=-2

Hence, the solution for the given system of equation is given by

x=5,y=1 and z=-2

7 0
3 years ago
Which number is greater 134 ir 143 explain . draw a picture
gogolik [260]

134 < 143
this would be right
8 0
3 years ago
-3p + 8 = -13 <br><br> HELLLLPP
ella [17]

Answer:

p=-7     :)

Step-by-step explanation:

-13-8=3p

-13+(-8)=3p

-21=3p

  ÷3

-7=p

5 0
3 years ago
What are the typical null and alternate hypotheses for a significance test on slope?
Tju [1.3M]
I'm sure you should look it up on Google I'm pretty sure that that would help you more than this stupid app OK look it up on Google or a Siri it will help you a lot better
8 0
2 years ago
Helppppp i dont know pslßss​
Natali5045456 [20]

Answer:

width=3

Step-by-step explanation:

area=length X width

length=4 X width

=>area=4 X width X width

=>area=(2 X width)^2

=>36=(2 X width)^2

=>6=2 X width

=>width=3

5 0
3 years ago
Read 2 more answers
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