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3 years ago

3x + 25 = 2(4x – 10) solve step by step

2 answers:

8 0

The answer is: X=9 first step is to distribute 2 into 4x and -10 then move the 8x over behind the 3x, then combine 8x and 3x together to get -5x=-20-25 combine -20 and -25 to get -45 then divide -45 by -5 to get x=9

bixtya [17]3 years ago

4 0

Answer:

x=9

Step-by-step explanation:

3x + 25 = 2(4x – 10)

3x + 25 = 8x-20

3x-8x=-20-25

-5x=-45

5x=45

x=9

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Two staments that show the relationship between the values of the numbers 0.5 and 0.05

nirvana33 [79]

The place value relationship of 0.5 and 0.05 in the given number
=> 0.5 and 0.05 are decimal numbers because they are place next to the decimal points.
=> 0.5 placed next to decimal point is tenths and 0.05 is in hundredths.
Now, what’s the relation of both numbers?
=> 0.5 is 10 times greater than 0.05
=> How? Let’s try solving it
= 0.5 = 5/10
=> 0.05 = 5/100
=> 0.05 x 10 = 0.5
=> 0.5 + 0.05 = 0.55

4 0

4 years ago

Help me this is worth A LOT of points

andrew-mc [135]

Answer:

8.5 yards

Step-by-step explanation:

The overall triangle, as shown by the line dividing its hypotenuse in 2, can be shown as 2 right triangles whose lengths and widths are both 7.5 and 4. With this in mind we can use Pythagorean theorem or...

$a^2+b^2=c^2$

By plugging in 7.5 and 4 into a and b respectively, we get the equation:

(7.5)^2 + (4)^2 = c^2

Now we can square 7.5 and 4, add them together and then square root the resultant to get our final answer.

56.25 + 16 = x^2
72.25 = x^2
√72.25 = x
x = ±8.5

The length of a triangle cannot be negative so disregard the possible negative value for 8.5.

x = 8.5

8 0

4 years ago

Read 2 more answers

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 449 gram setting. It is

stealth61 [152]

Answer:

We accetp H₀

Step-by-step explanation:

Information:

Normal distribution

Population mean = μ₀ = 449

Population standard deviation σ unknown

Sample size n = 23 n < 30 we use t-student test

so n = 23 degree of fredom df = n - 1 df = 23- 1 df = 22

Sample mean μ = 448

Sample standard deviation s = 20

Significance level α = 0,05

1.-Hypothesis Test

Null hypothesis H₀ μ₀ = 449

Alternative hypothesis Hₐ μ₀ ≠ 449

Problem statement ask for determine decision rule for rejecting the null hypothesis. For rejecting the null hypothesis we have to get an statistic parameter wich implies that μ is bigger or smaller than μ₀

2.-Significance level α = 0,05 ; as we have a two tail test

α/2 = 0,025

Then from t - student table for df = 22 and 0,025 (two tail-test)

t(c) = ± 2.074

3.- Compute t(s)

t(s) = ( μ - μ₀ ) / s /√n

plugging in values

t(s) = (448 - 449) / 20 /√23 ⇒ t(s) = - 1*√23 /20

t(s) = - 0.2398

4.-Compare t(c) and t(s)

t(s) < t(c) - 0.2398 < - 2.074

Therefore t(s) in inside acceptance region. We accept H₀

7 0

4 years ago

If Aria's plane traveled at a constant speed of 275 miles per hour for 9 hours, how far did the plane travel?

Sveta_85 [38]

Answer:

Arias plane travled 2475 miles

Step-by-step explanation:

All you have to do is multiply 275 by 9

6 0

3 years ago

Read 2 more answers

Help me plzzz with my math

Kipish [7]

Answer:

The answer is A.

Step-by-step explanation:

Hope this helped! :)

5 0

3 years ago