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3 years ago

X + 10 = 2x + 8

Mathematics

2 answers:

r-ruslan [8.4K]3 years ago

6 0

Answer:

$\times = 2$

Step-by-step explanation:

$x + 10 = 2x + 8 \\ subtract \: 2x \: from \: both \: sides \\ \\ - x + 10 = 8 \\ subtract \: 10 \: from \: both \: sides \\ \\ - x = - 2 \\ \: divide \: both \: sides \: by \: - x \\ \\ x = 2$

Annette [7]3 years ago

4 0

Well the answer is x=2 but i’m not sure how to explain it

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Sierra is growing tomato plants. She wants to grow the plants to be at least 48 inches tall. Which situation is represented by t

Len [333]

The first one is the correct answer due to 4 is the initial height of the plaint and 0.75 are inches that being added every week

6 0

4 years ago

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Dana can type nearly 90 words per minute. Use this information to find the number of hours it will take her to type 2.6 x 105 wo

Vlad1618 [11]

Dana can type 90 words per minute.

Since, 1 minute = $\frac{1}{60}$ hours

Therefore, number of words she can type = $\frac{90}{\frac{1}{60}}$

= 90×60

= 5400 words per hour

If she types $2.6\times 10^5$ words in 'x' hours.

Number of words Dana types with the given speed in 'x' hours = Speed of typing × Time

= $5400\times x$

Therefore, $5400\times x =2.6\times 10^5$

$5400x=260000$

$x=\frac{260000}{5400}$

$x=48.15$ hours

Therefore, Dana types $2.6\times 10^5$ words in 48.15 hours.

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6 0

3 years ago

My question is in the image

Alecsey [184]

Answer:

13.2 miles

Step-by-step explanation:

To solve this, we will need to first solve for the base of the triangle and then use the information we find to solve for the shortest route.

(5.5 + 3.5)² + b² = 15²

9² + b² = 15²

81 + b² = 225

b² = 144

b = 12

Now that we know that the base is 12 miles, we can use that and the 5.5 miles in between Adamsburg and Chenoa to find the shortest route (hypotenuse).

5.5² + 12² = c²

30.25 + 144 = c²

174.25 = c²

13.2 ≈ c

Therefore, the shortest route from Chenoa to Robertsville is about 13.2 miles.

8 0

3 years ago

Can somebody please help me with 10 Probability #?

OLga [1]

I'm sorry but I know the answer is deffinetly c or d

4 0

3 years ago

For the arithmetic sequence 42, 32, 22, 12... find the 18th term.

Stella [2.4K]

Answer:

The18th term of the given sequence is -128

Explanation:

To find the 18th term of the sequence:

42, 32, 22, 12, ..., we need to find the nth term of the sequence first.

The nth term of a sequence is given be the formula:

$T_n=a+(n-1)d$

Where a is the first term, and d is the common difference.

Here, a = 42, d = 32 - 42 = -10

$\begin{gathered} T_n=42+(n-1)(-10) \\ =42-10n+10 \\ T_n=52-10n \end{gathered}$

To find the 18th terem, substitute n = 18 into the nth term

$\begin{gathered} T_{18}=52-10(18) \\ =52-180 \\ =-128 \end{gathered}$

7 0

1 year ago