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svet-max [94.6K]
4 years ago
7

What is the solution of 5 x + 1] + 6 = 21?

Mathematics
2 answers:
inessss [21]4 years ago
6 0
The answer is x = 2 because you have to distribute 5 to x and +1 causing it to be 5x + 5 + 6 and then you combine ( 5x+11)=21 and then it’s an easy solve after that.
Mice21 [21]4 years ago
5 0

Answer:

x = -4 or x = 2

Step-by-step explanation:

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At the first school , there were 5 Sixth graders for every 2 seventh graders. At the second school dance, there were 7 sixth gra
rjkz [21]

Answer:

No

Step-by-step explanation:

The ratio of the first school is 5/2. The ratio of the second school is 7/8.

3 0
2 years ago
Each 7th grader brings $5 for charity, while each 8th grader brings in $8. The total collected is $1380. There are 10 more 8th g
Scilla [17]

Answer:

7th graders- 100 students

8th graders- 110 students

Step-by-step explanation:

Let the number of 8th graders be represented by x and 7th graders be represented by y

<u>Equation based on number</u>

There difference between 8th and 7th graders is 10 hence equation becomes

x-y=10

<u>Equation based on contribution</u>

While x contribute each $8 and y contribute each $5, the total contribution is $1380 hence the equation becomes

8x+5y=1380

<u>Combining equations</u>

Having the two simultaneous equations which are

x-y=10

8x+5y=1380

Solving the equations.

5x-5y=50

8x+5y=1380

------------------

13x=1430

x=1430/13=110

Therefore, 8th graders are 110. Since the 8th graders were 10 more than 7th graders, the 7th graders will be 110-10=100 students

6 0
3 years ago
Landon can climb a certain hill at a rate that is
soldi70 [24.7K]
This doesnt make sence.
8 0
3 years ago
Please help me out thank you
ANEK [815]

y = 21

i might be wrong, sorry if i am!!

3 0
3 years ago
Read 2 more answers
A convenience store sells 1/3 pound of one brand of trail mix for $1.50 and 1/2 pound of another brand of trail mix for $2.15. W
Kamila [148]
The cheaper trail mix would be the half pound bag. So take the price of the 1/3 bag and times it by 3 that equals $4.50 then check out the 1/2 lb bag and times it by 2 and it would equal $2.30. So you know the half pound bag is cheaper
8 0
4 years ago
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