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alexandr402 [8]
3 years ago
7

2n + 4n = 42 Answer: the value of n is .....

Mathematics
2 answers:
jeka57 [31]3 years ago
7 0

Answer: 7

Step-by-step explanation:

4x7= 28 and 2x7=14

14+28= 42

Gennadij [26K]3 years ago
5 0

Answer:

7

Step-by-step explanation:

2n + 4n = 6n, adding like terms

6n = 42

6n/6 = 42/6

n = 7

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8 1/2 x 4/11 please solve
irakobra [83]

Answer:

3 1/11

Step-by-step explanation:

8 1/2 x 4/11

Change to an improper fraction

(2*8+1)/2  * 4/11

17/2 * 4/11

68 /22

Divide the top and bottom by 2

34/11

Change back to a mixed number

11 goes into 34 3 times with 1 left over

3 1/11

7 0
3 years ago
Read 2 more answers
How much will two points cost on a $175,000 mortgage?
Triss [41]
                                                                             43  $3500.00


because you must calculate $175,000.00*.02 so when that is multiplied it equalos $3500.00
8 0
3 years ago
Jaime has a budget in which 1/4 of the money is for photocopying 3/7 of the money is for computer expenses and the rest of the m
Marat540 [252]
Let
x-------> <span>Jaime budget
</span>s------> <span>fraction of Jaime budget for student tutors
</span><span>
we know that
x=(1/4)x+(3/7)x+s

3/7 is equal to-----> (3/7)*(2/2)----> 6/14
substitute
</span>x=(1/4)x+(6/14)x+s<span>
x=(7/14)x+s
s=x-(7/14)x
s=(7/14)x-------> (1/2)x------> </span>half of the budget is for <span>student tutors.

the answer is
</span>half of the budget is for student tutors
6 0
3 years ago
Disney World offers an incentive on their opening day.
myrzilka [38]

Answer:

Step-by-step explanation:

The answer would be to find the LCM of both 3 and 5, which is 15. The 15th customer would receive both a mug and a t-shirt. Let's call mugs "x" and shirts "o" and line them up. The bold x's and o's are the lucky winners:

x  x  x  x  x  x  x  x  x  x  x  x  x  x  x

o  o  o o o  o  o  o o  o  o o  o  o  o

The last x and the last o are both bold for the first time right there, at the 15th letter of each.

4 0
3 years ago
Use substitution to solve the system of equations.
adelina 88 [10]

Answer:

(2, -5)

Step-by-step explanation:

x is defined by the first equation as x = -3y – 13.  Substitute  -3y – 13 for x in the second equation:

2( -3y – 13) + 2y = -6.

Performing the indicated multiplication, we get:

-6y - 26 + 2y = -6

Combining like terms results in:

-4y = 20, so that y = -5

Using the first equation, we find x for y = -5:

x = -3(-5) - 13 = 2

The solution is thus (2, -5) (Answer C)

5 0
3 years ago
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