Just give a estimate Please and thx:)

Mathematics

1 answer:

Vlada [557]3 years ago

8 0

Answer:

76°

Step-by-step explanation:

YMA + AMC = 170°

5x+19+5x+1 = 170

10x+20 = 170

10x = 150

x = 15

AMC = 5x+1

5(15)+1

75+1

76°

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There are a few boxes with 12 red pens in each and a few boxes with 10 blue pens in each. If 10 red pens and 5 blue pens are rem

jolli1 [7]

Answer with explanation:

x=the number of boxes containing red pens and

y = the number of boxes containing blue pens.

The expression which describes the number of red pen and blue pen in Boxes is

= (12 x-10)+(10 y-5)

The equivalent expression are

1.By Adding like terms

=12 x +1 0 y -10 -5

=12 x +1 0 y -15

or Using Associative Property of addition of three numbers which is

⇒a+(b+c)=(a+b)+c=(a+c)+b

= 10 y +12 x -15

= -15 +10 y +12 x

= 12 x -15 +10 y

3 0

3 years ago

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What is the solution of -21 = n -8?

vladimir1956 [14]

Answer:

n = -13

Step-by-step explanation:

The way i do this type of math is 21 - 8 and i know that its supposed to be a negative.

7 0

3 years ago

Find the area of the figure. Round to the nearest tenth if necessary.

Anestetic [448]

So I went ahead and divided up the figure so that you would understand what I'm going to tell you. Let's start with the red rectangle.

The distance from point R to point I is 6 units and the distance from Point R to point S is 5 units. 6*5 = 30 so that red rectangle has an area of 30 units

Now let's calculate triangle AVI. Area of a triangle is Base * Height. The base is 1 and the height is 5 which means the area of triangle AVI is 5.

Next, triangle ALT. From Point A to point L is 4 unit. From Point L to point T is 3 units. 4*3 is 12. So triangle ALT has an area of 12.

Triangle TSI. From Point T to point L is 3 units. From Point L to X is 2. Triangle TSI has an area of 6.

Now we add all of them up. 30+5+12+6 = 53. In total, RSTUV has an area of 53