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Alenkasestr [34]
3 years ago
15

To solve 5(2x + 4) = 15, first divide each side by

Mathematics
2 answers:
vovikov84 [41]3 years ago
8 0

Answer:

5

Step-by-step explanation:

In order to solve 5(2x + 4) = 15, first divide each side by 5

5(2x + 4) = 15 \\  \\  \frac{5(2x + 4)}{5}  =  \frac{15}{5}  \\  2x + 4 = 3 \\ 2x = 3 - 4 \\ 2x =  - 1 \\ x =   - \frac{1}{2}

Anna35 [415]3 years ago
5 0

Answer:

5

Step-by-step explanation:

First divide each side by 5

so you'll get

2x+4=3

2x=-1

x=-1/2

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Need help with question 13B i can not figure it out please help.
Vsevolod [243]
Short Answer 10
The tough part is the number of drinks.
Let the number of them be x
4.5 x + 3 + (10/100) * (4.5x + 3) + (7/100) * (4.5 x + 3) ≤  60

The tip is not included in the tax, and the tax does not include the tip. You can shorten this up quite a bit.
4.5 x + 3 + (10/100) * (4.5x + 3) + (7/100) * (4.5 x + 3) ≤  60
(1 + 10/100 + 7 /100) (4.5x + 3) ≤  60     Combine the tax, tip, scone and Lattes 

(1.17) * (4.5x + 3) ≤ 60                            Divide by 1.17
4.5x + 3 ≤ 60 / 1.17 
4.5x + 3 ≤ 51.28                                      Subtract 3
4.5x ≤ 48.28                                            Divide by 4.5
x ≤ 48.28 / 4.5
x ≤ 10.72 

Discussion.
There's a problem. He can't buy 0.72 of a Latte. He can only buy 10 of them. In this case we must round down so what happens if he buys 10 lattes? Does the price the taxes and the tip allow him to get another Latte? The answer should be no because then you would be 11 lattes and the tip and taxes would push you over 60 dollars. But be careful, sometimes things like this can alter you answer.. 

Answer: 10 <<<<
7 0
3 years ago
Guys help please again
Anon25 [30]
The answer is c and a
8 0
2 years ago
Can someone help me with these two
Leviafan [203]

Answer: I believe it is D..

3 0
3 years ago
How do I calculate this problem?
Evgesh-ka [11]

Answer:

22,000÷15%x6

Step-by-step explanation:

and that will you your answer

6 0
3 years ago
. A man bought a car for $60 320. After using it for 2 years he decides to trade in the car. The company estimated a depreciatio
Veronika [31]

Answer:

(a) 39,208

(b) 65%

Step-by-step explanation:

(a) The car loses 10% the first year and 15% the second year so that’s 35% lost in total after two years.

35% of 60,320 is 21,112

60,320 - 21,112 = 39,208

39,208 ÷ 60,320 = 0.65 (65%)

8 0
2 years ago
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