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vodomira [7]
3 years ago
13

Help plsss it’s urgent!!!!!

Mathematics
1 answer:
Katen [24]3 years ago
4 0

Answer:

4

Step-by-step explanation:

3x + 2 = 5

x = 1

x + 3 = y

1 + 3 = y

y = 4

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What's the answer to this
julia-pushkina [17]
The answer to number 5 would be negative 8 and 1/12.
Hope this helps!!
3 0
3 years ago
Find two positive numbers whose difference is 30 and whose product is 2584.
kvasek [131]

Answer:

38 and 68.

Step-by-step explanation:

Let x be the smaller one of the two number.

x must be a positive integer. The other number would be (x + 30).

The question states that the product of the two numbers is 2584. In other words:

x\, (x + 30) = 2584.

Rearrange this equation and solve for x:

x^{2} + 30\, x - 2584 = 0.

The first root of this quadratic equation would be:

\begin{aligned}x_{1} &= \frac{(-30) + \sqrt{30^{2} - 4 \times (-2584)}}{2} \\ &= \frac{(-30) + \sqrt{900 + 10336}}{2} \\ &= \frac{(-30) + \sqrt{11236}}{2} \\ &= \frac{(-30)}{2} + \sqrt{\frac{11236}{2^{2}}} \\ &= (-15) + \sqrt{2809} \\ &= (-15) + 53 \\ &= 38 \end{aligned}.

Similarly, the second root of this quadratic equation would be:

\begin{aligned}x_{1} &= \frac{(-30) - \sqrt{30^{2} - 4 \times (-2584)}}{2} \\ &= (-15) - 53 \\ &= -68\end{aligned}.

Since the question requires that both numbers should be positive, x > 0. Therefore, only x = 38 is valid.

Hence, the two numbers would be 38 and (38 + 30), which is 68.

6 0
3 years ago
Read 2 more answers
The quotient if a number and 9 times it’s reciprocal is 1. Find the number. (Might be more than one answer)
astra-53 [7]
You need to add 9 and 1 which gives you 10
5 0
4 years ago
Read 2 more answers
Anwser: <br> 36÷(1-9×1-4)+1+2
kkurt [141]
So this is a BIDMAS question so first you do what’s in the brackets so you have (1-9x1-4) and you have to do the multiplication first out of that to get (1-9-4) which is -12 so then you have overall 36 / -12 + 1 + 2 so you have to do the division first so do 36/-12 to get -3 and you have -3 + 1 + 2 which is 0 so your answer is 0.
5 0
3 years ago
Read 2 more answers
Plzzzzzzzzzzzzzzzzzzzzz answer!!!!!!!!!!!!!
GrogVix [38]

Answer:

This is quadratic trinomial

Step-by-step explanation:

It has x^2 (square) and consists of 3 parts

7 0
4 years ago
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