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2 years ago

3 = x+3 – 5x how can I solve this using a multi step equation

Mathematics

1 answer:

n200080 [17]2 years ago

4 0

Answer: x = 0

Step-by-step explanation:

Given equation (swapped position):

x + 3 - 5x = 3

Combine like terms:

(x - 5x) + 3 = 3

-4x + 3 = 3

Subtract 3 on both sides:

-4x + 3 - 3 = 3 - 3

-4x = 0

Divide -4 on both sides:

-4x / -4 = 0 / -4

$\boxed{x=0}$

Hope this helps!! :)

Please let me know if you have any questions

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Find the rate of change of the following table.

Serjik [45]

Answer:

$\frac{1}{3}$

Step-by-step explanation:

The rate of change is measured by the slope of the line in this linear table.

Calculate the slope m using the slope formula

m = $\frac{y_{3}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 3, 0) and (x₂, y₂ ) = (3, 2) ← 2 ordered pairs from the table

m = $\frac{2-0}{3+3}$ = $\frac{2}{6}$ = $\frac{1}{3}$ ← rate of change

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3 years ago

Permutations + combination question ^^

BaLLatris [955]

Answer:

Option D is correct

Step-by-step explanation:

Alex has 7 textbooks.

=>The number of ways to place 4 out of 7 books on the shelf is 7P4.

=> Option D is correct

Hope this helps!

6 0

3 years ago

The dot plot below represents the number of dollars in allowance that students receive each week in Mrs. Jimenez’s class. What i

jarptica [38.1K]

So they get $2 on day 0, $2 on day 2, $3 on day 4, $5 on day 5, $2 on day 6, $1 on day 7, $2 on day 8, $4 on day 10, $1 on day 11, $2 on day 12 and $1 on day 15.

$2 appears 5 times

$1 appears 3 times

$4 appears once and $5 appears once

The median would be ($2*5 + $1*3 + $4 + $5)/(5+3+1+1) = $22/10 = $2.2

The range of the allowances is highest - lowest = $5-$1 = $4

Edit: It might also have a range of $5 and a median of $1.37 because the lowest it goes to is $0 on some days though. Try both.

4 0

3 years ago

Two accounts each began with a deposit of $10,000. Both accounts have rates of 6.5%, but one account compounds interest once a y

castortr0y [4]

Answer:

Two accounts each began with a deposit of $10,000. Both accounts have rates of 6.5%, but one account compounds interest once a year while the other account compounds interest continuously. Make a table that shows the amount in each account and the interest earned after one year, five, years, ten years, and 20 years.

(Round ALL values to the nearest Dollar AND Do NOT include Dollar Signs)

Literacy and Hunger

Country % Who Are Literate (x) % Who Are Undernourished (y)

Cuba 100 2

Egypt 71 4

Ethiopia 36 46

Grenada 96 7

Italy 98 2

Jamaica 80 9

Jordan 91 6

Pakistan 50 24

Russia 99 3

Togo 53 24

Uganda 67 19

6 0

3 years ago

Suppose that Matthew can choose to get home from work by car or bus.

Verizon [17]

Answer:

B-91%

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

$P(B|A) = \frac{P(B)*P(A|B)}{P(A)}$

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: arriving home after 7 p.m.

Event B: getting home by bus.

When he chooses to get home by bus, he arrives home after 7 p.m. 25 percent of the time.

This means that $P(A|B) = 0.25$

Because the bus is cheaper, he uses the bus 70 percent of the time.

This means that $P(B) = 0.7$

Probability of getting home after 7 p.m.

70% of the time he uses bus, and by bus, he arrives arrives home after 7 p.m. 25 percent of the time.

100 - 70 = 30% of the time he uses the car, and by car, he arrives home after 7 p.m. 6 percent of the time.

$P(A) = 0.7*0.25 + 0.3*0.06 = 0.193$

What is the approximate probability that Matthew chose to get home from work by bus, given that he arrived home after 7 p.m.?

$P(B|A) = \frac{0.7*0.25}{0.193} = 0.9067$

Rouding up, 91%.

So the correct answer is:

B-91%

7 0

4 years ago