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tatuchka [14]
3 years ago
8

Solve for 2.

Mathematics
1 answer:
Tatiana [17]3 years ago
7 0

Answer:

x=2/5

Step-by-step explanation:

expand the bracket

i.e 2(-5x+1)-4(-5x+1)

-10x+2+20x-4=0

clt -10x+20x=4-2

10x=2

therefore x=2/5

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Ayush and sumit take two different routes to school. Ayush's route is 1km 2hm long while sumit route is 2hm 30dam long while rou
emmasim [6.3K]

Answer:

Ayush's route is 0.7 km or 700m longer than Sumit route.

Step-by-step explanation:

Ayush's route is 1km 2hm long while sumit route is 2hm 30dam.

We know that,

1 km = 10 hm

1 dam = 0.1 hm

Using these conversions we get

Ayush's route = 1km 2hm = (1×10) hm + 2 hm = 12 hm

Sumit route = 2hm 30dam = 2 hm + (30×0.1) hm = 2 hm + 3 hm = 5 hm

Ayush's route is longer.

Difference = 12 hm - 5 hm = 7 hm = 0.7 km            [1 km = 10 hm]

Hence, Ayush's route is 0.7 km or 700 m longer than Sumit route.

4 0
3 years ago
Read 2 more answers
Find the value of x
romanna [79]

they are 2 similar triangles, one is smaller than the other. they are in the ratio of 2:1,

hence 7x =56÷2

7x=28

x=4

4 0
3 years ago
Graph the system of equations on your graph paper to answer the question.
Alik [6]

Answer:

y=-x-0.833.....

Step-by-step explanation:

You solve for Y in the first two and then solve for x in the last two parts of the problem.

7 0
3 years ago
What is 9 times 9. (my calculator Broke)
boyakko [2]

Answer:81

Step-by-step explanation: 9*1= 9 9*2= 18 9*3 = 27 9*4= 36 9*5=45 9*6 = 54 9*7=63 9*8= 72 9*9 81 9*10= 90

5 0
3 years ago
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Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in a recent year. suppose a samp
Anastaziya [24]
Given:
μ = $3.26 million, averaged salary
σ = $1.2 million, standard deviation
n = 100, sample size.

Let x = random test value
We want to determine P(x>4).

Calculate z-score.
z = (x - μ)/ (σ/√n) = (4 - 3.26)/(1.2/10) = 6.1667

From standard tables,
P(z<6.1667) = 1
The area under the distribution curve = 1.
Therefore
P(z>6.1667) = 1 - P(z<=6.1667) = 1 - 1 = 0

Answer: The probability is 0.

8 0
3 years ago
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