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docker41 [41]
3 years ago
10

A+B = 30. A:B is equivalent to 2:3. Find two whole numbers that satisfy the two conditions.

Mathematics
1 answer:
Valentin [98]3 years ago
4 0
I think the 2 numbers would be 12 and 18. Hope this helps.
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Determine the intercepts of the function f(x)=2x^2+18x+28
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The intercepts are -2 and -7 on the x-axis
7 0
2 years ago
Find the lest number which is exactly divisible by 36 & 90 Maths ​
prisoha [69]

Answer:

  • 180

Step-by-step explanation:

You need to find the HCF of 36 and 90.

<u>Prime factors of each:</u>

  • 36 = 2*2*3*3
  • 90 = 2*3*3*5

<u>HCF includes all prime factors of both numbers:</u>

  • HCF(36, 90) = 2*2*3*3*5 = 180
3 0
2 years ago
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Every 1/2 hour Naomi stretches her neck;every 1/3 hour we stretches her legs and every 1/6 hour she stretches her arms. Which pa
Dmitrij [34]

Answer:

She will have stretched her neck 1 time, she will have stretched her legs 2 times, and she will have stretched her arms 4 times.

Step-by-step explanation:

This is because 1/2 can only go into 2/3 once, 1/3 can go into 2/3 twice, and 1/6 can go into 2/3 four times.

4 0
3 years ago
Use intercepts to graph the line described by each equation. -6y=-4x+24
Aloiza [94]
First, you have to get the equation to the normal form of a line. To do this, you divide both sides by -6 to get \frac{2}{3} x-4. The y-intercept is at -4 and your slope is 2/3. Use this to graph the equation.
3 0
3 years ago
Using the quadratic formula to solve 7x2 – x = 7, what are the values of x?
Kruka [31]
How the quadratic formula works:

For any quadratic equation ax² + bx + c = 0, the solution is x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}.

In the case of our equation 7x² - x = 7, first we need to subtract 7 from each side so that we have 0 on the right.
7x² - x - 7 = 0

Identify the values of a, b, and c.
a = 7, b = -1, and c = -7.

Plug these into our quadratic formula and solve.

x=\frac{-(-1)\pm\sqrt{(-1)^2-4(7)(-7)}}{2(7)}=\boxed{\frac{1\pm\sqrt{197}}{14}

There are two values for x: (1+√197)/14 and (1-√197)/14.
The approximate values for these are 1.073976 and -0.931119.
5 0
3 years ago
Read 2 more answers
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