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3 years ago

Please help me idk this

Mathematics

2 answers:

Sphinxa [80]3 years ago

5 0

Answer: $x = 60^{0}$

Step-by-step explanation:

The total sum of angles in a triangle is $180^{0}$ , that is

$x + x + 60 = 180$

$2x + 60 = 180$

subtract 60 from both sides

$2x = 180 - 60$

$2x = 120$

divide through by 2

$x = 60^{0}$

Paul [167]3 years ago

3 0

Answer:

x=60

Step-by-step explanation:

180-60=120 and then since there are 2 x you divide it by 2 which equals 60

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3 years ago

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2 years ago

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Vesna [10]

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2 years ago

Tickets to a school play cost $3 for students and $8 for adults. On opening night, $1000 was collected and 150 tickets sold. How

vesna_86 [32]

Let the number of students who bought tickets be s,
Let the number of adults who bought tickets be a,

Equation 1:

$3s \: + \: 8a \: = \: 1000$

Equation 2:

$s \: + \: a \: = \: 150 \\ s \: = \: 150 \: - \: a$

Substitute ( 2 ) into ( 1 ),

$3(150 \: - \: a) \: + \: 8a \: = \: 1000 \\ 450 \: - \: 3a \: + \: 8a \: = \: 1000 \\ 5a \: = \: 550 \\ a \: = \: 110$

Substitute a = 110 into ( 2 ),

$s \: + \: 110 \: = \: 150 \\ s \: = \: 40$

Ans: 40 Student Tickets, 110 Adult Tickets

7 0

2 years ago

Can you plz solve 6-8 on this pic you have to find the area for it plz

Sergio039 [100]

Answer:

Figure 3: 28.5 units²

Figure 4: 33 units²

Figure 5: 25 units²

Figure 6: 30 units²

Figure 7: 25 units²

Figure 8: 32 units²

Reasons:

Figure 3 consists of 2 shapes, A rectangle and a square

████████ ◣

rectangle: ████████ triangle: █◣

████████ ██◣

rectangle:

to calculate a rectangle's area: multiply the lengths of the width and height:

████████= width 8 █

█ =height 3

█

$area=w(h)$

now substitute the values of W and H:

$8(3)=24$

rectangle area = 24

Triangle:

to find the area of a triangle, multiply the width and height and divide by two:

◣ + ◣ = █ 0.5 + 0.5 = 1

█

███=width 3 █ =height 3

█

$area=\frac{w(h)}{2}$

now substitute W and H

$area=\frac{3(3)}{2}$

$area\frac{9}{2}$

Triangle area: 4.5

Now add the Rectangle Area To the triangle Area:

4.5 + 24 = 28.5

Final answer:

AREA =2 8.5

hope this helps!

5 0

2 years ago