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IRINA_888 [86]
3 years ago
10

Solve 7x=56 what is x?

Mathematics
2 answers:
Elena-2011 [213]3 years ago
3 0

Answer:

X=8

Step-by-step explanation:

So since an equation with unknown variable divide 7 on both sides

56/7=8

x=8

adelina 88 [10]3 years ago
3 0

Answer:

8

Step-by-step explanation:

X=56÷7=8

By moving 7 to other side

And change the sign to divide

Becz if it multiplication it will change to divide and if plus it will change it sign to negative

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In this question, all lengths are in centimetres.
JulsSmile [24]

Answer:

Step-by-step explanation:

AB/AC =1/2

(3x-4)/(2x+12)=1/2

2(3x-4) = 1(2x+12)

6x-8=2x+12

4x=20

X=5

AC/BC =3x-4/7x-2=22/33=2/3

AB/AC=3x-4/7x-2=22/33=2/3

AB/AC=3x-4/2x+12

6x-8=2x+12

You would get 4/5 still trying to work out the last mark

3 0
3 years ago
Solve the following word problem using two variables. Show each step of your work.
masha68 [24]

Answer:

John is 16 and Maya is 11

Step-by-step explanation:

x=Maya's age

x+5=John's age

x+x+5=27

2x+5=27

     -5   -5

2x=22

/2    /2

x=11

x+5=

11+5= 16

7 0
2 years ago
Trains on the Glasgow Subway depart every 4 minutes, and a complete circuit takes 24 minutes. Ewan sets off at 8.30 am on a trai
Stolb23 [73]
Trains depart after every 4 minutes.
Total time train takes to complete a circuit= 24 minutes
Evan sets off at 8:30 am, so  he will be back at 8:54 am.
So time of trains coming in opposite direction:
8: 34 am
8:38 am
8:42 am
8:46 am
and 8:50 am
5 trains coming in opposite directions.
Now the trains started at 8:06 am from the stations are:
8:06 am
8:10 am
8:14 am
8:18 am
8:22 am
and 8:26 am.
So there are 6 trains started the circuit at 8:06 am.

Now total number of trains=6+5=11 trains

Answer: 11 trains will pass on complete circuit.

7 0
3 years ago
What is the recipricol of 0
Ber [7]

Answer: 1/0

Step-by-step explanation: the reciprocal of a number is simply found by switching the place of the numerator and denominator. so the reciprocal of 0 or 0/1 is 1/0

5 0
3 years ago
Read 2 more answers
What are the solution of the equation 2|×+7|-3=5​
marin [14]

Answer:

x = -3

Step-by-step explanation:

2(x + 7) - 3 = 5     (given)

2x + 14 - 3 = 5     (Distributive Property)

2x + 14 = 8           (Addition Property of Equality)

2x = -6                  (Subtraction Property of Equality)

x = -3                    (Division Property of Equality)

6 0
3 years ago
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