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ICE Princess25 [194]
3 years ago
11

Which is the value of x

Mathematics
2 answers:
svetoff [14.1K]3 years ago
6 0
All of those formulas must add up to 180 degrees, because a straight line is 180 degrees. We could add them all up (x+10+2x+10+4x+3x-5). Add all the x up...(10x) and the numbers...(16). Now we have an equation 10x+16=180. Isolate the x, and you get x=16.4
vodka [1.7K]3 years ago
5 0
16.5 is what I got for x you add them up and equal them to 180 because its a straight line
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Why is the straightedge of a ruler not the same as a line?
vampirchik [111]

Answer:

A straightedge is used only to make or draw a straight line but not to measure the length as it does not have measurement gradients. A ruler has two parallel lines or edges which have centimeters and millimeters on one side and inches on the other.

6 0
4 years ago
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How many bags of grapes had a weight of 3/8 pounds or less?
Len [333]

8

6/8 = 3/4 pounds

Step-by-step explanation:

Step 1 :

From the number line we can see that

1 bag of grapes has weight of 1/8 pounds

4 bags of grapes has weight of 1/4 pounds

3 bags of grapes has weight of 3/4 pounds

Step 2 :

The total number of bags having a weight of minimum 3/8 pounds is 1 + 4 + 3 = 8

The total weight of  bags that has weight of minimum 3/8 pound  is

1/8 + 1/4 + 3/ 8

= 1/8 + 2/8 + 3/8 ( L.C.M is 8)

=6/8 =3/4 pounds

8 0
3 years ago
The unit digit of a two digit number is one less than the ten digit number. If the number is increase by 8 and then divided by t
Colt1911 [192]

The tens digit is 3; the units digit is 3-1 = 2; and the number itself is 32.

<em>Lets simplify the problem,</em>

Let assume  the "tens" digit be x

Then the "units" difference =  (x-1), according to the condition.

Hence, the number itself is N = 10x + (x-1).

Then the number N+8 is 10x + (x-1) + 8 = 10x + x + 7 = 11x + 7.

From the last statement of the problem, we have this equation

N+8 = 8*(x+y),or11x + 7 = 8*(x+(x-1)).

Simplify and find "x"

11x + 7 = 8*(2x-1)11x + 7 = 16x - 87 + 8 = 16x - 11x15 = 5xx = 15/5 = 3.

Thus the tens digit is 3; the units digit is 3-1 = 2; and the number itself is 32.

Learn more about UNIT Problems on:

brainly.com/question/12253743

#SPJ4

6 0
2 years ago
Two families go ice skating one day. The first family spends $25 on skate rentals for 5 kids and 2 adults. The second family spe
Phantasy [73]
Explanation:

Let’s take kids as x and adults as y

According to the question,

5x + 2y = 25 (1)
3x + 1y = 14 (2)

Let’s multiply (2) with 2 so take we can solve the equations

5x + 2y = 25
6x + 2y = 28
(-) (-) (-)
___________
-1x = = -3
x = 3

Substituting to get y

3x + 1y = 14
3(3) + y = 14
y = 14-9
y = 5

Answer:

Therefore, each child’s skate rental (x) costs $3 and each adults’s skate rental (y) costs $5


Hope it helped! :)
6 0
4 years ago
Factor the algebraic expression 24a + 20​
Zinaida [17]

Answer:

4(6a + 5)

Step-by-step explanation:

24a + 20​

the greatest common factor of both terms is 4

4(6a + 5)

4 0
3 years ago
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