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Neko [114]
3 years ago
14

CAN YOU EXPLAIN 7. If A = 2x + 3 and B = x^2 – 5x + 1, what is the value of A - 5B?​

Mathematics
1 answer:
Rasek [7]3 years ago
4 0

Answer:

Step-by-step explanation:

A-5B = (2x+3) - 5(x²-5x+1)

  = (2x+3) + (-5x²+25x-5)

  = -5x² + 27x - 2

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The cost of 2 kg of onions is ₹24. What will the cost of 12 kg of onions be?​
max2010maxim [7]

Answer:

144 rupees

Step-by-step explanation:

2 kg= 24 rupees

2/2 kg= 24/2 rupees

1 kg= 12 rupees

1×12 kg= 12×12 rupees

12 kg= 144 rupees

8 0
3 years ago
Krissi has $14 in the bank and earns $8 a day. John has 35$ and earns $5 a day when will krissi have more money?
SOVA2 [1]

Answer: 8 days

Step-by-step explanation:

K=14+8x

J=35+5x

when K=J they will have the same amount

14+8x=35+5x

8x=21+5x

3x=21

x=7 days until they have the same amount- 8 days until she has more

5 0
3 years ago
What is the difference between -3 and 7? *
Murrr4er [49]

Answer:

4

Step-by-step explanation:

Hope this helped

6 0
3 years ago
Read 2 more answers
Sarah Meeham blends coffee for Tasti-Delight. She needs to prepare 160 pounds of blended coffee beans selling for $4.97 per poun
jok3333 [9.3K]
Given:
let h be the high quality bean
let c be the cheaper bean

h + c = 160
6h + 3.25c = 160*4.97
6h + 3.25c = 795.20

h = 160 - c
6(160 - c) + 3.25c = 795.20
960 - 6c + 3.25c = 795.20
-2.75c = 795.20 - 960 
-2.75c = -164.80
c = -164.80 / -2.75
c = 59.92 or 60 lbs

h = 160 - c
h = 160 - 60
h = 100 lbs

Sarah should blend 60 lbs of cheap coffee bean and 100 lbs of high quality coffee bean.
3 0
3 years ago
Two classes have a total of 60 students. The students need to make teams of 8t
Step2247 [10]

Answer:

We have 7 complete teams

Step-by-step explanation:

Here, we have students preparing to make a team of 8 students per team. We now want to know how many complete teams they can make if they are a total of 60;

To get this, we need the multiples of 8;

we have;

8, 16 , 24 , 32, 40 , 48 , 56

So breaking it in 8s, we have;

8 8 8 8 8 8 8

We have 7 8s;

So there would be four left overs

3 0
3 years ago
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