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2 years ago

True or False: X=3 is the solution to 2x+10/5=4. 1. True 2. False

Mathematics

2 answers:

s2008m [1.1K]2 years ago

8 0

Answer:

Step-by-step explanation:

False

maksim [4K]2 years ago

6 0

2x + 10/5 = 4

If the *divided by 5* is for the whole expression
2x + 10 = 20
2x = 20 - 10
2x = 10
x = 10/2 = 5 [false]

If *divided by 5* is only for 10
2x + (10/5) = 4
2x + 2 = 4
2x = 4-2
x = 2/2
x = 1 [false]

Answer will be false in both cases but i gave the solution to make you understand.
Hope it helps.

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Solve for x: 2(10-2x) = 4(3x + 1). Write your answer as a fraction.

qwelly [4]

Answer:

$\boxed{x=1}$

Step-by-step explanation:

$2(10-2x) = 4(3x + 1)$

$\sf Expand \ brackets.$

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$\sf Subtract \ 12x \ and \ 20 \ from \ both \ sides.$

$20 - 4x - 12x - 20 = 12x + 4 - 12x - 20$

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ivann1987 [24]

<span>31 would be the quotient.
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3 years ago

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What is the probability of rolling a 4 on a single sided die and then rolling a 6?

Rzqust [24]

Answer:

If it is a six-sided die then it has the probability of 1/6 or .16

Step-by-step explanation:

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3 years ago

Can someone help me with this question please! <br> 5-x=12

alisha [4.7K]

Answer:

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Step-by-step explanation:

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3 years ago

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An observer (O) spots a plane flying at a 42° angle to his horizontal line of sight. If the plane is flying at an altitude of 15

NeTakaya

Answer:

D. 22,417 feet

Step-by-step explanation:

Fine the diagram in the attachment for proper elucidation. Using the SOH, CAH, TOA trigonometry identity to solve for the distance (x) from the plane (P) to the observer (O), the longest side x is the hypotenuse and the side facing the angle of elevation is the opposite.

Hypotenuse = x and Opposite = 15,000feet

According to SOH;

$sin 42^0 = \frac{Opposite}{Hypotenuse} \\\\Sin42^0 = \frac{15000}{x}\\ \\x = \frac{15000}{sin42^0}\\\\ \\$

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Hence the distance (x) from the plane P to the observer O is approximately 22,417 feet

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3 years ago