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irinina [24]
3 years ago
5

Divide 10kg in the ratio of 13 : 7​

Mathematics
1 answer:
ivann1987 [24]3 years ago
5 0

Answer:

6.5 : 3.5

Step-by-step explanation:

So to do this sum;

First, add both 13 and 7 which is 20

 Then, 13/20 *10 = 6.5

and 7/20 *10 = 3.5

In mathematics, a ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8∶6, which is equivalent to the ratio 4∶3). Equal quotients correspond to equal ratios.

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The length of a rectangle is 8 feet more than it’s worth. The area of the rectangle is 84 ft.². Find its Length and width.
Furkat [3]

Answer: 100 i think, but am not sure.

Step-by-step explanation:

The formula for area of a rectangle is A=l*w.  Since the area is 84, then you can use the A=l*w formula.  84 = x(x+8) would be the equation to solve for x.

Now, you need to put the equation in standard form.  So, x2 + 8x - 84 = 0.

Since you can't solve this quadratic using factoring, you need to complete the square.

To complete the square you need to add 84 to both sides.  Now you have x2 + 8x = 84.  Take the coefficient for the x term (8) and divide by 2.  Now square it.  That would be 42, so 16.  Now you have x2 +8x +16 = 100.

Factor x2 +8x +16, so (x+4)2 = 100

If you use the square root property, you have x+4 = 10.  Therefore, x = 6 (the short side) and 14 is the long side.

5 0
3 years ago
If you buy stock for $36.20 per share and sell that stock for $37.90 per share, what was your
Mars2501 [29]

Answer:

$1.70 per share

Step-by-step explanation:

37.90-36.20=1.70

3 0
11 months ago
Find the sum of the first 6 terms in the sequence -5 -25 -125 -625
sashaice [31]
This is a geometric sequence, so use the formula for the sum of a geometric sequence:
Sum = (a(r^n - 1))/(r - 1)
where a is the first term, -5
r is the common ratio, 5
and n is the number of terms

Thus,
Sum = ((-5)(5^6 - 1))/(5-1) = -19530
5 0
3 years ago
My last function question. Please break this down for me. Brainliest answer will be given
cupoosta [38]
Remember these two combinations: logab=loga+logb, log(a/b)=loga-logb
3logx=logx^3
(1/2)log(x+2)=log(x+2)^(1/2)
2log(z-4)=log(z-4)^2
so the given expression can be combined into log{[(x^3)(z-4)^2]/(x+2)^(1/2)}
7 0
3 years ago
Y=4x+7 ordered pairs
andreyandreev [35.5K]

Well here are 3

(0,7);(1,11);(2,15)

4(0) + 7 y:7

You can keep doing it choose a number for x that's and for y multiply 4 times the numer you choosed for x and add 7 to it

7 0
3 years ago
Read 2 more answers
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