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3 years ago

Q7. What would be the best next step in solving the following equation for x? 8x - 4 = 10

Mathematics

1 answer:

bagirrra123 [75]3 years ago

8 0

Answer:

The next step would be adding -4 to the other side since it would cancel out -4

Step-by-step explanation:

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Write a real-world problem involving a percent that can be solved by using the proportion 3/b= 60/100. Then solve the proportion

inessss [21]

Dax goes to the store to buy milk. There is a sale for milk, and it now costs 3 dollars since it was 60% off. What was the original price of the milk?
3 - 60
x - 100
Cross multiply
300=60x
5=x

The milk original cost 5 dollars.

8 0

3 years ago

The fish population of a lake is decreasing each year. A study is conducted. But, unfortunately some data was lost. The research

Solnce55 [7]

Answer:

$F(t) = 18000(0.6666)^{t}$

Step-by-step explanation:

The fish population after t years can be modeled by the following equation:

$F(t) = F(0)(1-r)^{t}$

In which F(0) is the initial population and r is the constant rate of decay.

Year one the fish population was 18000

This means that $F(0) = 18000$

In year three the fish population was 8000 fish.

Two years later, so $F(2) = 8000$

$F(t) = F(0)(1-r)^{t}$

$8000 = 18000(1-r)^{2}$

$(1-r)^{2} = 0.4444$

$\sqrt{(1-r)^{2}} = \sqrt{0.4444}$

$1 - r = 0.6666$

$r = 0.3334$

$F(t) = 18000(0.6666)^{t}$

4 0

4 years ago

Julio drives to salem every 9 days and drives to Monmouth every 15 days. In how many days will he drive to both salem and Monmou

Helga [31]

Answer:

in 90 days

Step-by-step explanation:

you find the lcm of 9 and 15

6 0

3 years ago

Read 2 more answers

Help brainiest answer to whoever is correct

Effectus [21]

Answer:

56 degrees

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Which equation is perpendicular to 3x - y = 9 and goes through the point (6,6)

Lelechka [254]

Answer:

y = - $\frac{1}{3}$ x + 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 3x - y = 9 into this form by subtracting 3x from both sides

- y = - 3x + 9 ( divide all terms by - 1 )

y = 3x - 9 ← in slope- intercept form

with slope m = 3

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{3}$ , thus

y = - $\frac{1}{3}$ x + c ← is the partial equation

To find c substitute (6, 6) into the partial equation

6 = - 2 + c ⇒ c = 6 + 2 = 8

y = - $\frac{1}{3}$ x + 8 ← equation of perpendicular line

6 0

3 years ago