All categories

3 years ago

How to do 4x + 5 equals 8

1 answer:

5 0

4x + 5 = 8

First, take away '5' from both sides.
$4x = 8 - 5$
Second, subtract '8 - 5' to get '3'.
$4x = 3$
Third, divide both sides by '4'.
$x = \frac{3}{4}$

Answer as fraction: $x = \frac{3}{4}$
Answer as decimal: $x = 0.75$

You might be interested in

Find the area of the bedroom with the shape shown in the figure, in square feet.

maksim [4K]

I think the answer is C

6 0

3 years ago

Read 2 more answers

After John worked at a job for 10 years, his salary doubled. If he started at $x, hls salary after 10 years is

Sholpan [36]

Answer:

$2x

Step-by-step explanation:

x × 2 = 2x

I hope this helps!

4 0

3 years ago

In football, a completion percentage is the number of completions

Finger [1]

Ian has a higher passing percentage

3 0

2 years ago

Ill give a brainliest i need help its due today

aliya0001 [1]

Answer:

w=15

Step-by-step explanation:

-24=-3w+21

We move all terms to the left:

-24-(-3w+21)=0

We get rid of parentheses

3w-21-24=0

We add all the numbers together, and all the variables

3w-45=0

We move all terms containing w to the left, all other terms to the right

3w=45

w=45/3

w=15

8 0

3 years ago

Read 2 more answers

The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. Th

Mila [183]

Answer:

The calculated t-value is t=0.47.

Step-by-step explanation:

The question is incomplete:

"Americans typically eat quickly and do not spend time enjoying their meal. A researcher plans to test if those trained in mindfulness will take more time to enjoy their meal (that is, they will spend more time eating than the general population). The general population spends an average of 68 minutes per day combined eating their three meals. The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. The sample mean for those trained in mindfulness equals 74; the SS = 150. What is the calculated t-value? Round your answer to two decimal places."

The degrees of freedom are (n-1)=(16-1)=15

The standard deviation is:

$s=\sqrt{\frac{SS}{n-1}}=\sqrt{\frac{150}{16-1}}=\sqrt{10}=3.16$

The t-value can be calculated as:

$t=\frac{M-\mu}{\sigma/\sqrt{n}} =\frac{74-68}{3.16/\sqrt{16}} \\\\t=\frac{6}{3.16*4}=\frac{6}{12.64}= 0.47$

4 0

2 years ago