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TEA [102]
2 years ago
10

What is the value of x? (BOTH)

Mathematics
1 answer:
nadezda [96]2 years ago
5 0

Answer:

Step-by-step explanation:

\2.\\\frac{4}{3} =\frac{x}{2.25} \\3x=2.25*4=9\\x=9/3=31.\\\frac{x+8}{2x-5} =\frac{10}{14} =\frac{5}{7} \\10x-25=7x+56\\10x-7x=56+25\\3x=81\\x=81/3=27

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5 - 2 (a + 3b) / 2 = ? / ?
Semmy [17]

Answer:

(5-2a+6b)/2

Step-by-step explanation:

According to PEMDAS, we would multiply 2 by (a+3b) first. This would equal 2a+6b. Since this is being subtracted from 5, the numerator would equal 5-2a+6b. This would bring the simplified answer to (5-2a+6b)/2

4 0
3 years ago
Write number in two other forms 40,000+1,000+300+70+8
tankabanditka [31]
1.) 35,000+6,000+65+13
2.) 25,000+ 16,000+11,000+78
8 0
3 years ago
Which of the following is the solution set of x² + 8x + 12 = 0?
raketka [301]

Answer:

\fbox{\begin{minipage}{9em}x = -2 and x = -6\end{minipage}}

Step-by-step explanation:

Given:

x^{2} + 8x + 12 = 0

Solve for:

x

Solution:

Step 1: Select the formula to solve for x

There are some ways to solve quadratic equations.

One of the simple way (if possible) is performing the factorization.

Another way is using the quadratic formula.

Here, we are going to use factorization.

Step 2: Perform factorization

      x^{2} + 8x + 12 = 0

<=>x^{2}  +  2x + 6x  + 12 = 0

<=>(x^{2} + 2x) + (6x + 12) = 0

<=>x(x + 2) + 6(x + 2) = 0

<=>(x + 2)(x + 6) = 0

<=> x = -2 or x = -6

Hope this helps!

:)

4 0
2 years ago
Find the missing angle. Round to the nearest tenth.
Paladinen [302]

Answer:

40

Step-by-step explanation:

here is a trig calculator

http://www.carbidedepot.com/formulas-trigright.asp

4 0
2 years ago
Describe how you would find how much grass seed is needed to cover a triangular plot of land
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Answer: it the area of it

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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