Explain how you know the equation x + 1 = 4 is equivalent to the equation 4x + 8 = 20.

Mathematics

1 answer:

Ghella [55]3 years ago

4 0

Answer:

4-1=3

x=3

and

4x + 8 = 20

-8 -8

4x = 12

4 4

x = 3

Step-by-step explanation:

both x values equal 3

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Solve for t in scientific formula d=rt

yarga [219]

The problem is: d=rt
you are solving for r

d=rt
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t t

you divide both sides by r, so your answer is:

d/t=r or r=d/t

I hope this helped! :))

3 0

3 years ago

Above are two different models of the same triangular-shaped garden. If the height of the model on the left is 14 cm, what is th

Katyanochek1 [597]

Please consider the attached graph.

We have been given that there are two different models of the same triangular-shaped garden. The height of the model on the left is 14 cm. We are asked to find the height of the model.

First of all, we will convert 14 cm into feet.

We can see that model on left side has a scale of 1 cm is equal to 15 feet.

14 cm = 14×15 feet = 210 feet.

We can see that model on the right side has a scale of 1 cm is equal to 7.5 feet.

Since both models represent same triangular-shaped garden, so the actual height for the both models will be same.

Now we need to convert actual height of 210 feet into inches using 2nd scale.

$\text{210 ft}=210\text{ ft}\times \frac{1\text{ inch}}{\text{7.5 ft}}=\frac{210}{7.5}\text{ inch}=28\text{ inch}$

Therefore, the height of the model on right is 28 inches.

5 0

4 years ago

Is 3/4 bigger than 3/5

Svet_ta [14]

Yes, 3/4 is bigger than 3/5.
One way you can verify this is by drawing a bar model, and cut it into four. Color in three pieces.
Then, draw another bar model the same size as the first one, and cut it into five pieces.
Color in three pieces.
You can see that 3/4 has more shaded in area than 3/5.
Another way you can do this is by dividing the numerator by the denominator for both fractions.
Hope this helped.

8 0

4 years ago

Read 2 more answers

What is the quotient (2x^4-3x^3-3x^2+7x-3) divided by (x^2-2x+1)

Deffense [45]

Answer:

You can find the quotient of the expression in the images below, together with more information and a full analysis

(2x^4-3x^3-3x^2+7x-3)/(x^2-2x+1)