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Marina CMI [18]
4 years ago
9

What is the answer guys?

Mathematics
2 answers:
shutvik [7]4 years ago
8 0
-12 + 3b - 1 = -5 - b
3b - 13 = -5 - b    |+13
3b = 8 - b   |+b
4b = 8    |:4
b = 2

Nana76 [90]4 years ago
3 0
B=2
idk what else to say but I have to add words so hi
\



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A coach on a motorway is travelling at a constant speed . in ten minutes it travels 16 kilometer
Pepsi [2]

Step-by-step explanation:

10 minutes= 16km

20 minutes= 16x2 = 32km

30 minutes= 16x3 = 48km

50 minutes= 16x5 = 80km

60 minutes = 16x6 = 96km

I hope this helps, have a great day! :) -wilzW

8 0
3 years ago
Can you identify the scale factor please and thank you
jasenka [17]

Answer:

multiply by 2

Step-by-step explanation:

G, H, K -> your multiply  by 2 to get G',H',and K'

3 0
3 years ago
Write the 2-digit number that matches the clues. My number has a tens digit that is 8 more than the ones digit. Zero is not one
laila [671]
Firstly attention should pe paid to the exact words given in the problem and then only the answer can be easily deduced.
It is a 2 digit number and that is said in the problem
Now For the tens digit it has been said that it is 8 more than the ones digit. The ones digit cannot be zero and that is already mentioned in the problem.
So if we take the ones digit to be 1, then the tens digit will be= 8 +1
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Now if we take the ones digit to be 2, then the tens digit will be = 2 + 8
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So it cannot be 2 as the tens digit takes the number to a 3 digit number and it is not possible.
So the answer to this problem is 91.
5 0
3 years ago
Anyone wanna help me with this.
salantis [7]
The middle one has an error.
7 0
3 years ago
Read 2 more answers
A student needed to prepare 500mL of 1X TAE buffer to run a QC gel. The stock solution in the lab is 5X TAE. What volumes of sto
Xelga [282]

Answer:

you need 100ml of 5X TAE and 400ml of water.

Step-by-step explanation:

You need to use a rule of three:

C_1V_1=C_2V_2

where:

\left \{ {{C_1= 5X} \atop {C_2=1X}} \right.

and

\left \{ {{V_1 = V_{TAE}} \atop {V_2=500ml}} \right.

Therefore:

V_{TAE} = \frac{V_2*C_2}{C_1}

V_{TAE} = 100ml

Then just rest the TAE volume to the final Volume and you get the amount of water that you need to reduce the concentration.

3 0
3 years ago
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