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garik1379 [7]
3 years ago
9

Please help, I don't understand it

Mathematics
2 answers:
siniylev [52]3 years ago
7 0

Answer:

X equals 10

Step-by-step explanation:

4X centimeters divided by x cm equals 4. Since we know that were divided by 48 CM / 4 equals 12. That means that (x + 2) cm equals 12. That means that x is equal to 10

s344n2d4d5 [400]3 years ago
3 0

Step-by-step explanation:

\frac{4x}{x}  =  \frac{48}{(x + 2)}  \\ 4 =  \frac{48}{(x + 2)} \\ 48 = 4(x   + 2) \\ 48 = 4x + 8 \\ 48 - 8 = 4x \\ 40 = 4 x \\  \frac{40}{4}  =  \frac{4x}{4}  \\  = x = 10

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Please help thank you so much and show all work
ELEN [110]
This is a 30-60-90 right triangle with the shorter leg having a length of 5.

To find the length of x, we must find the length of the longer leg of the right triangle. To do that, we must multiply the shorter leg by the square root of 3.

x=5* \sqrt{3} =5 \sqrt{3}

This is the simplest radical form. Hope this helps! :)
7 0
3 years ago
Read 2 more answers
As a salesperson, you are paid $50 per week plus $2 per sale. This week you want your pay to be at least $100. What is the minim
Georgia [21]
50+2x=100
-50       -50(subtract 50 from both sides)
       2x=50 (divide both sides by 2)
        x=25
8 0
3 years ago
Read 2 more answers
6 16x + 5y = -2<br> 4x - y=-2
Grace [21]

Answer:

x=2/9,y=26/9

Step-by-step explanation:

This is a simultaneous equation

16x+5y=-2..(1)

4x-y=-2...(2)

From (2) make y the subject of formula

y=4x+2..(3)

Substitute (3) into (1)

16x+5(4x+2)=-2

16x+20x+10=-2

36x-10=-2

Add 10 to both sides

36x=8

Divide both sides by 36

x=8/36

Divide both denominator and numerator by 4

x=2/9

Substitute the value x into (3)

y=4(2/9)+2

y=8/9+2

Let the LCM be 9

y=8+18/9

y=26/9

Therefore x=2/9,y=26/9

5 0
2 years ago
Four triangles are shown. One side of each triangle lies on a ray, and the triangles are not drawn to scale. Based on these tria
Firdavs [7]

Answer:

x=120 so the third one

Step-by-step explanation:

x=98+22

x=120

3 0
2 years ago
Read 2 more answers
Amma hikes 2and3/4 miles of nature trail in 1 hour and 15 minutes. How many miles does Amman hike per hour?
LekaFEV [45]
Formula
====
d = r * t

Givens
======
d = 2 3/4
t = 1 hour 15 minutes 
r = ????

Calculations
==========
You need to convert the 15 minutes to hours.
1 hour = 60 minutes
x hour = 15 minutes

1/60 = x/15
x = 15/60
x = 0.25 hours
so the time = 1 hours + 0.25 hours
t = 1.25 hours

Now you need to do something with the distance.
3/4 mile = 0.75 of a mile
So the distance = 2 + 0.75 = 2.75 miles

Now you are ready for the answer.
d = r * t you are looking for r
2.75 = r * 1.25
r = 2.75/1.25
r = 2.2 miles / hour

Note you could do this with fractions.
2 3/4 = 11/4
1 1/4 =  5/4

r = 11/4 // 5/4 =11/5 = 2 1/5 which is the same thing as 2.2. If your calculator can handle fractions (those kind of calculators cost about 10 dollars in Canada. It should be 8 in the US) that might be the way to do this problem.
6 0
3 years ago
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