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laila [671]
4 years ago
6

30, 38 and 40 please

Mathematics
1 answer:
velikii [3]4 years ago
6 0

3(6-4x)-27x=10x-31

18-12x-27x=10x-31

18-39x=10x-31

-49x=-49

Therefore, x=1.


s/6-s/2+1=45/2.

s-3s+6=135

-2s=129

Therefore, s=-\frac{129}{2}.


2(b+5)=3(4-b)

2b+10=12-3b

5b=2

b=\frac{2}{5}



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computer desks can be purchased for $10.90 a dozen or in case of 60 $80 a case. Use unit prices to tell which prices is the best
Natalija [7]
The <u>correct answer</u> is:

The better deal is $10.90 for a dozen.

Explanation:

A <u>unit rate</u> is a rate with a denominator of 1.  This means we want to know the price of one individual desk for each bulk package.

$10.90 for a dozen desks:
Divide 10.90 by 12:
10.90/12 = 0.9083 ≈ $0.91 per desk.

$80 for 60 desks:
Divide 80 by 60:
80/60 = $1.33 per desk.

The lowest cost per desk is in the $10.90 for a dozen deal.
7 0
3 years ago
Which of the following are solutions to 2x^2 -8x-90 Select all that apply.
AlekseyPX
9 & -5

If you graph the equation and look at where the x intercepts are that will give you the answer
8 0
4 years ago
An iPhone costs £699 in London, €799 in Paris and $1,099 in New York. Using £1 = €1.13 and £1 = $1.37, state the lowest price of
Alex787 [66]

Answer:

£699 in London

£902.87 in Paris

£1505.63 in New York

The lowest price of the iPhone is £699 in London.

3 0
3 years ago
4xpower of 2 + 9 when x = 2
Darya [45]

Answer:

Yes

Step-by-step explanation:

2+9x2= That means 11 x 2

5 0
3 years ago
You move down 3 units and right 6 units. You end at (4, -5). Where did you start?
natita [175]

Answer:

(7,-11)

Step-by-step explanation:

x'=x-3

or x=x'+3=4+3=7

y'=y+6

y=y'-6

or y=-5-6=-11

so original point was (7,-11)

5 0
4 years ago
Read 2 more answers
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