All categories

3 years ago

F 7x = 42, find the value of 44 - 8x

1 answer:

Pie3 years ago

3 0

The value is -4.
7x=42
/7 /7 (Divide both sides by 7)
x=6
If we insert x=6 into 44-8x, it is 44-8(6), which is 44-48.
44-48=-4, so the answer is -4.

You might be interested in

Is -7 greater than -4

antiseptic1488 [7]

No you’re welcome :)

5 0

3 years ago

Read 2 more answers

Please help, Multiple choice

Leni [432]

Answer: A

Step-by-step explanation: when the ratios of apples to plums (9:15) is simplified, it is 3:5

7 0

3 years ago

Read 2 more answers

A pencil box and a notebook together cost $6.28 the notebook cost $0.70 more than the pencil box . How much does the notebook co

11111nata11111 [884]

Well, if y is the notebook cost, well x+y=6.28, x+x+0.70=6.28, 2x=5.58, x=2.79.
The pencil box costs $2.79, while the notebook costs $3.49.

6 0

3 years ago

Read 2 more answers

A random sample of 64 bags of white cheddar popcorn weighed, on average, 5.23 ounces with a standard deviation of 0.24 ounce.

emmasim [6.3K]

Answer:

We conclude that cheddar popcorn weighed less than 5.5 ounces.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ =5.5 ounces

Sample mean, $\bar{x}$ = 5.23 ounces

Sample size, n = 64

Alpha, α = 0.05

Sample standard deviation, σ = 0.24 ounce.

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 5.5\text{ ounces}\\H_A: \mu < 5.5\text{ ounces}$

We use One-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{5.23 - 5.5}{\frac{0.24}{\sqrt{64}} } = -9$

Now, $z_{critical} \text{ at 0.05 level of significance } =-1.645$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that cheddar popcorn weighed less than 5.5 ounces.

3 0

3 years ago

8x10to the 3rd power

asambeis [7]

Answer:

512000

Step-by-step explanation:

8*10

80*80*80

7 0

3 years ago

Read 2 more answers

F 7x = 42, find the value of 44 - 8x​

F 7x = 42, find the value of 44 - 8x