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2 years ago

How to do a ratio box with fractions? 7th grade help

Mathematics

1 answer:

shtirl [24]2 years ago

8 0

Answer:

Step-by-step explanation:

You put a fraction in one slot, then you know you put it in another and yeah, like

1/2 To 2 then

1. To. 4

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On a cell phone mapping app, 5 cm represents 150 feet. Which equation represents this relationship?

denis-greek [22]

Answer:

y=150x

Step-by-step explanation:

let me know if its wrong

7 0

3 years ago

In which step did Viet make an error?

Yuri [45]

Answer:

Step 1

Step-by-step explanation:

When moving the 4 to the other side, Viet was supposed to subtract 4 from each side, leaving 0 on the left, and 102-4 on the other side. 102-4=98, not 106. Viet added when he was supposed to subtract.

8 0

3 years ago

A tank can be filled by one pipe in four hours and by a second pipe in six hours; and when it is full, the tank can be drained b

just olya [345]

12 hours..........
+ - = 1
Multiply by 12 to clear the fractions
3t + 2t - 4t = 12
t = 12 hrs to fill the pool

3 0

2 years ago

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Help me Find the area of

andriy [413]

I believe the answer is 4,523. Correct me if im wrong

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3 years ago

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Before starting to play the roulette in a casino you want to look for biases that you can exploit. Youtherefore watch 100 rounds

never [62]

Answer:

$P(n>55)=0.1357$

Step-by-step explanation:

From the question we are told that:

Sample size n=100

Sample space n'=36

Generally the equation for the mean number of times odds appears is mathematically given by

$\=x_o=hp$

$\=x_o=100*0.5$

$\=x_o=50$

Generally the equation for standard deviation is mathematically given by

$\sigma=(hp(1-p))^{1/2}\\\sigma=(50(0.5))^{1/2}$

$\sigma=5$

Therefore probability to make wrong decision P(n>55)

$P(n>55)=1-P(z55)=1-P(z55)=1-0.86$

$P(n>55)=0.1357$

8 0

2 years ago