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kondaur [170]
3 years ago
13

4) Divide 500g into the ratio 2:3​

Mathematics
1 answer:
amm18123 years ago
8 0
There's a different way I solve ratio equations compared to most typical ways of solving these kinds of questions, but it's always worked for me so I'll use it here.

You can add all the numbers in the ratio together and include a constant. This can basically be any variable.

In this case, 2n+3n = 5n (since the ratio is 2:3)
5n = 500
n = 100
Now we know that the constant is 100.

Multiply the constant into the ratio:
2n:3n
2(100):3(100)
200:300
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What is the first four terms of the geometric sequence where a1=−8 and r=−2 ?
mash [69]

Answer:

-8, 16, -32, 64

Step-by-step explanation:

a1 = -8

r = -2

a2 = -8(-2)=16

a3 = -8(-2)²=-8(4)=-32

a4=-8(-2)³=-8(-8)=64

7 0
3 years ago
3. Evaluate the following:
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Answer: See below

Step-by-step explanation:

<u>Question 3:</u>

a) \ $S=1$ \ yields \ $(1,3)$ \\ \\b)  \ $S=3$  \ yields \ $(3,1)$ \\  \\ c)  \ $x(\sqrt{10})=\sqrt{10}$ \\ \\d) $y(\sqrt{10}+\sqrt{5})=1$ \\ \\e) $x(2)=2$ \\ \\f) $y(2,5)=1$ \\

<u>Challenge:</u>

\begin{aligned}&x(s)=s \quad ,s \in[0,4] \\&y(s)=\left\{\begin{array}{cc}3 s & , s \in[0,1] \\5-2 s &, s \in[1,2] \\1 & s \in[2,4]\end{array}\right.\end{aligned}

5 0
2 years ago
Which fraction is equivalent to<br> 2/-6?
Rufina [12.5K]

Answer:

-2/6

Step-by-step explanation:

4 0
4 years ago
Any solution to this?
Katyanochek1 [597]

Answer: Turn on the lights

7 0
3 years ago
Read 2 more answers
Which graph represents the solution set to this system of equations? y = –1 2 x + 3 and y = 1 2 x - 1 On a coordinate plane, a l
vivado [14]

Answer:

On a coordinate plane, a line goes through (0, 3) and (2, 2) and another line goes through (0, negative 1) and (2, 0).

Step-by-step explanation:

Given that the system of equations are:

y = –1 /2 x + 3 and y = 1 /2 x - 1

Let us first try the first option

On a coordinate plane, a line goes through (- 4, 1) and (0, 3) and another line goes through (-2, - 2) and (0,- 1)

The slope M1 = (3-1)/(0--4) = 2/4 = 1/2

The calculated slope is positive. But the slope of the first equation is negative. So we ignore the first option.

The next option that makes sense is the last option. That is

On a coordinate plane, a line goes through (0, 3) and (2, 2) and another line goes through (0, -1) and (2, 0). So let also try it by calculating the two slopes

M1 = (2-3)/(2-0) = -1/2 ( perfect)

M2 = (0- -1)/(2-0) = 1/2 (perfect)

Because, from the two equations

y = –1 /2 x + 3 and y = 1 /2 x - 1

The slope of the first is negative and the slope of the second is positive. Also, they have a corresponding intercept which are positive 3 and negative 1

4 0
4 years ago
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