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8090 [49]
3 years ago
11

Help please!!!!!!!!!!!

Mathematics
1 answer:
Ivanshal [37]3 years ago
6 0

Answer:

third option and last option are the correct answers

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I mainly need help with #10, thank you!
Masja [62]

Answer:

10) 40

Step-by-step explanation:

just subtract 95 and 55

8 0
3 years ago
4. Diego is thinking of two positive numbers. He says, "If we triple the first number and
aleksandr82 [10.1K]

Answer:

3<em>x </em>+ 2<em>y</em> = 34. and two possible pairs of positive numbers are  (<em>x</em>, <em>y</em>) = (10, 2) and (<em>x</em>, <em>y</em>) = (4, 11).

Step-by-step explanation:

 Let the First positive number be <em>x</em> and second positive number be <em>y.</em>

Triple of first number = 3<em>x</em>

double of second number = 2<em>y</em>

According to question,

3<em>x </em>+ 2<em>y</em> = 34

Therefore, the equation is 3<em>x </em>+ 2<em>y</em> = 34

So the two possible pair of numbers Diego would be thinking of must satisfy the equation 3<em>x </em>+ 2<em>y</em> = 34

Now,  3<em>x </em>+ 2<em>y</em> = 34

3<em>x </em>= 34 - 2<em>y</em>

Let x = 10 and by substituting its value in above expression,

3 \times 10 = 34 - 2y

30 = 34 - 2y

2y = 34 - 30

2y = 4

y = 2

Therefore first pair (<em>x</em>, <em>y</em>) = (10, 2)

In the same way put x = 4 then,

3<em>x </em>= 34 - 2<em>y</em>

3 \times 4 = 34 - 2y

2y = 34 - 12

2y = 22

y = 11

Therefore first pair (<em>x</em>, <em>y</em>) = (4, 11)

Therefore, (<em>x</em>, <em>y</em>) = (4, 11) and  (<em>x</em>, <em>y</em>) = (10, 2) are the two possible pairs of numbers Diego could be thinking of as these both values satisfy the equation 3<em>x </em>+ 2<em>y</em> = 34.  

8 0
3 years ago
What is the simple way of solving quadratic equation ​
aleksandrvk [35]

quadratic equations can be soled by 3 methods

factorization

completing square

quadratic formula

but factorization is the simplest

4 0
3 years ago
Pls help <br> What is 13 x 4
Mice21 [21]

Answer:

52

Step-by-step explanation:

8 0
3 years ago
Help me please i don't understand this thanks ​
STALIN [3.7K]

Answer:

12.75

Step-by-step explanation:

12.75 rounded to the nearest tenth is 12.8, and 12.74 won't work because it will round to 12.7.

Therefore, 12.75 is the smallest possible number.

6 0
3 years ago
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