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beks73 [17]
4 years ago
8

2(5x + 7) = 34 Someone help me

Mathematics
2 answers:
Pepsi [2]4 years ago
7 0

Answer:

x = 2

Step-by-step explanation:

2(5x + 7) = 34

10x + 14 = 34

10x = 34 - 14

10x = 20

x = 20/10

x = 2

jonny [76]4 years ago
6 0

Answer:

2

Step-by-step explanation:

34 divided by 2 is 17

-7 is 10

divided by 5 which is 2

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Is 3√ a irrational number
umka2103 [35]

Im going to assume that 3√ is √3

And √3 is irrational because You cant square root it without getting nuked with a Random Number generator of decimals.

4 0
3 years ago
2010,2002,2005,2007,2001
xxMikexx [17]

Answer:

2011,2012,2013,2014,2015

Step-by-step explanation:

6 0
3 years ago
How do I do 1/2 divided by -2/5 + -1/4
anastassius [24]

IF -2/5 + -1/4 IS IN PARENTHESES:

skip this part if its not

(1/2) / (-2/5 - 1/4)

(-2/5 - 1/4) is equivalent to (-8/20 - 5/20) = -13/20

substitute -13/20 for (-2/5 - 1/4)

1/2 / -13/20

remember that division is the inverse of multiplication, so if we flip the second fraction, we can change the division sign to multiplication (when doing this, never flip the first fraction, you will not get the right answer)

1/2 * -20/13

simplify -20/2 to get -10

1 * -10/13 = <u>-10/13</u>

IF -2/5 + -1/4 IS NOT IN PARENTHESES:

1/2 / -2/5 +-1/4

PEMDAS : multiplication/division comes before addition / subtraction

1/2 / -2/5 = (apply the flip rule : read the chunk of text above if you don't know what it is) 1/2 * -5/2 = -5/4

subtract 1/4 form -5/4 now

-5/4 - 1/4 = -6/4

simplify

= <u>-3/2</u>

4 0
3 years ago
Keiko, Dale, and Tony sent a total of 95 text messages during the weekend. Dale sent 7 fewer messages than Kelko. Tony sent 4 ti
mylen [45]

Answer:

Keiko sent 17 messages, Dale sent 10 messages, and Tony sent 68 messages

Step-by-step explanation:

Let x represent the number of messages that Keiko sent.

Since Dale sent 7 less than Keiko, his number can be represented by x - 7

Since Tony sent 4 times as many as Keiko, his number can be represented by 4x

Using these variables, create an equation:

(x) + (x - 7) + (4x) = 95

Add like terms and solve for x:

6x - 7 = 95

6x = 102

x = 17

So, Keiko sent 17 messages.

Subtract 7 from this to find how many Dale sent:

17 - 7

= 10

Multiply it by 4 to find how many Tony sent:

17(4)

= 68

So, Keiko sent 17 messages, Dale sent 10 messages, and Tony sent 68 messages

4 0
3 years ago
Sarah went to the grocery store and bought bottles of soda and bottles of juice. Each
kow [346]

Answer:

5 numbers of soda bottles and 10 numbers of juice bottle was purchased.

Step-by-step explanation:

Let Sarah purchased x bottles of Soda and y bottles of Juice.

Each soda bottle contains 45 gm of sugar and each juice bottle contains 30 gm of sugar, and there is a total of 525 gm of sugar,

Hence, we can write 45x + 30y = 525, ⇒ 3x + 2y = 35 ...... (1)

Now, it is given that, she purchased 5 more bottles of juice than bottles of soda.

Hence, x + 5 = y, ⇒ x - y = - 5 ......... (2)

Now, solving equations (1) and (2) we get, 5x = 25, ⇒ x = 5  

Hence,from equation (2), y = x + 5 = 10

Therefore, 5 numbers of soda bottles and 10 numbers of juice bottle was purchased. (Answer)

5 0
3 years ago
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