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3 years ago

What is the value of x in the equation

Mathematics

2 answers:

Alex3 years ago

8 0

Answer:

D) 57

Step-by-step explanation:

1/3x- 1/2 = 18 1/2

1/3x = 19

(3) * 1/3x = 19 (3)

x = 57

Kisachek [45]3 years ago

8 0

Answer:

D. 57

Step-by-step explanation:

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One leg of a right triangle is 7 inches longer than the other leg, and the hypotenuse is 35 inches. Find the lengths of the legs

lilavasa [31]

Answer: 21, 28

Step-by-step explanation:

Side #1 = x
Side #2 = x + 7
Hypotenuse = 35

Use the Pythagorean Theorem $a^{2}+b^{2}=c^{2}$ :

a = x
b = x + 7
c = 35

Substitute in the values & solve:

$x^{2}+(x+7)^{2}=35^{2}\\x^{2}+x^{2}+14x+49=1225\\2x^{2}+14x+49-1225=0\\2x^{2}+14x-1176=0\\2(x^{2}+7x-588)=0\\2(x + 28)(x - 21)=0\\x_{1}=-28, x_{2}=21$

<em><u>-28 is not a possible solution since you can't have negative inches...</u></em>

a = x = 21
b = x + 7 = 21 + 7 = 28
c = 35

6 0

3 years ago

Solve for x: 1 < x + 3 < 4

Otrada [13]

Answer:

The answer is D

Step-by-step explanation:

$1 - 3 < x < 4 - 3 \\ - 2 < x < 1$

8 0

3 years ago

A Clock had a radius of 5 inches. Find the distance the minute hand tracked from 2 to 6

Studentka2010 [4]

Answer:

Step-by-step explanation:

they are not in the middle so it has to be 9-8 i feel like its 9

hope this helps!

6 0

2 years ago

Talya works six hours per day on Fridays and Saturdays each week she earns $8.20 per hour what is her gross pay in a week

Scilla [17]

$6 \times 2 = 12$
12×8.20=98.40

5 0

3 years ago

I'm not really 100% sure on how to do this??

Cloud [144]

XPY is the circumference minus XY

the angle of arc XY is 90 degrees

a full revolution of a circle is 360 degrees

the distance XY is 1/4 of the circumference of the circle

the circumference of a circle is C=2 pi r

r is 10m

the circumference is 20 pi

1/4 of 20 is 5

the distance of arc XY is 5 pi

20pi - 5 pi = 15 pi

7 0

3 years ago