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DedPeter [7]
3 years ago
15

the relative frequency that the traffic lights will show RED at road works is 0.2. Estimate how many times they will show RED ov

er the next 40 journeys.
Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
8 0
Only 8 times because you take .2 times 40

adell [148]3 years ago
7 0
Yes you multiply 40*0.2 and that would be 8.
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Solve the system of linear equations below.
Reika [66]

Answer:

x = 1 , y = 3 thus: A is your Anser

Step-by-step explanation:

Solve the following system:

{2 x + y = 5 | (equation 1)

x + y = 4 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{2 x + y = 5 | (equation 1)

0 x+y/2 = 3/2 | (equation 2)

Multiply equation 2 by 2:

{2 x + y = 5 | (equation 1)

0 x+y = 3 | (equation 2)

Subtract equation 2 from equation 1:

{2 x+0 y = 2 | (equation 1)

0 x+y = 3 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 1 | (equation 1)

0 x+y = 3 | (equation 2)

Collect results:

Answer:  {x = 1 , y = 3

8 0
3 years ago
Read 2 more answers
ANSWER CORRECTLY WITH REASONING FOR BRAINLIEST
Vadim26 [7]

Answer:false

Step-by-step explanation:because jaya is not giving her opinion she is asking for others opinions.

4 0
3 years ago
If the measure of < CAB = 137 then what is < CAD =
Liono4ka [1.6K]

Answer:

Any figure to this question?

Step-by-step explanation:

3 0
2 years ago
Solve the system using substitution <br> y=8-x <br> 7=2-y
Alexus [3.1K]
If y=8-x then you can plug that into the equation like 7=2-(8-x). When you distribute the equation becomes 7=2-8+x. Once you combine like terms the equation becomes 7=-6+x. Then you subtract 6 from both sides, which gives you 13=x.
To find y just put 13 where x was in the first equation. Y=8-13.
Y=-5
X=13
8 0
3 years ago
It's number 6?its really hard me and my friends have tried but we just don't know.
Elden [556K]
Let n be the amount of points earned in round 5

the goal of the game is to get zero when you add up the point value from all the rounds.

this means
-9 +3 + (-8)+ 2 +n =0

add up all the given numbers, then see which number(n) is required in order to get zero

any questions?
6 0
2 years ago
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