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3 years ago

2a+3b=10 2a+3b=23 How to isolate them and substitute it

1 answer:

3 0

You need to solve for one of the variabkes and then plug it in
when I did one of them I got a=5-3b/2 so after that you plug that in for a and solve for the other variable, hope it helps

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The difference of a number and thirty-six is seven. Algebraic expression

sleet_krkn [62]

Answer:

x-36=7

Step-by-step explanation:

x-36=7

x=36+7

x=43

6 0

3 years ago

How many inches is 2 miles??

Andrej [43]

Answer:

126,720 inches

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

In one town, 47% of all voters are Democrats. If three

34kurt

Answer:

The probability that the all three votes are Democrats

P(X=3) = 0.1038

Step-by-step explanation:

Step(i):-

Given that the all voters are democrats

The probability that the all voters are democrats

p = 47% =0.47

q = 1-p =1-0.47 = 0.53

Step(ii):-

Let 'X' be the random variable in binomial distribution

$P(X=r) = n_{C_{r} } p^{r} q^{n-r}$

The probability that the all three votes are Democrats

P(X=3) = 0.1038

n=3 and r=3

$P(X=3) = 3_{C_{3} } (0.47)^{3} (0.53)^{3-3}$

$P(X=3) = 1 (0.47)^{3}$

P(X=3) = 0.1038

Final answer:-

The probability that the all three votes are Democrats

P(X=3) = 0.1038

5 0

3 years ago

Help me with this geometry question please (100% correct only)

Travka [436]

This is easy. You basically round them all up. So 1.8 would turn into 2, 2.9 would turn into 3, and 5.7 would turn into 6. So now you have 2, 3, and 6. Now to calculate volume, you multiply length time width times height. So you multiply 2x3x6, and your answer is

36ft³

Hope this helps! :)

4 0

3 years ago

Which figure is a translation of Figure 1?

uranmaximum [27]

It’s figure B it’s the same as figure 1

8 0

3 years ago