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AlladinOne [14]
3 years ago
13

SOMEONE PLEASE HELP ME 3/4(x+4)=1/4(x+8)

Mathematics
1 answer:
Troyanec [42]3 years ago
5 0

Answer:

x=-2

Step-by-step explanation:

To solve this equation, we can use PEMDAS or Order of Operations.

Parenthesis

Exponents

Multiplication>Division

Addition>Subtraction

Using the various properties can also help make the equation easier.

First, solve for parenthesis using the distributive property.

Our equation is now : 3/4x+3=1/4x+2

Now, subtract 2 on both sides, to cancel out the positive 2 on the right.

3/4x+1=1/4x

Now subtract 3/4x from both sides.

1=-2/4x

Finally, to isolate x, divide both sides by -2/4

1/-2/4=-2

x=-2

Hope this helps!

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Edith’s age is 1/4 of Ronald’s age. In how many years will Edith’s age be 1/3 of Ronald’s age if Edith is 20 years old?
ruslelena [56]

Answer:

10

Step-by-step explanation:

x = Edith's age = 20 years

y = Ronald's age

x = 20 = y/4

y = 20×4 = 80 years

in z years we have

(x + z) = (y + z)/3

(20 + z) = (80 + z)/3

3(20 + z) = 80 + z

60 + 3z = 80 + z

60 + 2z = 80

2z = 20

z = 10

in 10 years Edith's age will be 1/3 of Ronald's age.

then Edith will be 30, and Ronald will be 90.

30 = 90/3

correct.

7 0
2 years ago
A baseball is thrown into the air from a height of 5 feet. The ball reaches a maximum height of 43.5 feet and spends a total of
xeze [42]

Answer:

h(t) = -16t^2 + 49.64t + 5

Step-by-step explanation:

The above choice is the only one that makes the height function be a downward-opening parabola and gives h(0) = 5, the initial height of the baseball.

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Any function starting with 16t^2 will not have any positive x-intercepts.

8 0
3 years ago
D
Margaret [11]

Answer:

The answer to this question is

Angle at C is 35

Angle at D is 81

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because y=6

8 0
3 years ago
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2. What is the measure of angle A? ​
Gemiola [76]

Answer:

80 degrees

Step-by-step explanation:

100 + angle A = 180

180-100= 80

So, the measure of angle A is 80 degrees

8 0
3 years ago
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Can the set of lengths be the side lengths of a right triangle?<br><br> 7ft, 12ft, 17 ft
Sholpan [36]

<u>Answer:</u>

These set of lengths cannot be the side lengths of a right angled triangle.

<u>Step-by-step explanation:</u>

Pythagoras Theorem is always followed by a right angled triangle. According to which the sum of squares of the two shorter legs is equal to the square of the longest leg.

a^2=b^2+c^2

So here, 17 is the longest leg and 7 and 12 the shorter ones.

Applying Pythagoras Theorem to these lengths to find out.

17^2=7^2+12^2

289\neq 193

Therefore, these set of lengths cannot be the side lengths of a right angled triangle.

6 0
3 years ago
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