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postnew [5]
3 years ago
7

ASAP answer please!!!!!!!!!!!

Mathematics
2 answers:
antoniya [11.8K]3 years ago
3 0
<h2>angle in triangle</h2>

because the triangle above is an isosceles triangle, then both angles are of the same value.

and one thing you should know, the angle above shows the straight angle.

<em>so the sum of all angles is 180</em><em>°</em>

<u>can be written like </u><u>this</u><u> </u><u>:</u>

(5x+13)°+(3x+7)°=180°

5x + 13 + 3x + 7 = 180

8x + 20 = 180

8x = 180 - 20

8x = 160

x = 20

<em>(*the third choice is correct)</em>

EleoNora [17]3 years ago
3 0
Answer= 20

The line is equal to 180 degrees (1/2 of 360 degrees) so you combine 5x+13 and 3x+7 and set it equal to 180 in order to find X which ends up being 20.
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Please help this is due soon and I'm struggling!
Len [333]

1)

a. 4

b. 9

c. -7

d. -23

2)

a. F

b. F

c. T

d. F

3)

a. 100 -66 =34

b. 78 x 3 = 234

c. 36 + 24 = 60

d. 4 x 17 x 3 = 204

21)

a. -9 + (-12)

= - 9 - 12

= - 21

b. -17 + (3)

= -17 + 3

= - 14

c. 24 + ( -11 )

= 24 - 11

= 13

d. - 15 + (-10)

= - 15 - 10

= - 25

e. - 63 + ( -42) + 8

= - 63 - 42 + 8

= - 97

f. 101 + ( -11 ) + ( -100 )

= 101 -11 - 100

= - 10

8 0
2 years ago
Read 2 more answers
Teresa is going for a run. she runs for 9.6 miles at a speed of 6 miles per hour. for how many hours does she run?
Lera25 [3.4K]
Speed=6 miles per hour
Distance =9.6 miles
Speed =distance /time
Time=distance/speed=9.6/6=1.6 hours
7 0
3 years ago
Is 0.3x (4 - y) and - 1.2x - 0.3y equivalent
guapka [62]

Answer:

Inconsistent

Step-by-step explanation:

We are given the equations;

0.3y=0.6x+0.3

1.2x+0.6=0.6y

Assuming we are required  to determine whether the system of equations are consistent or inconsistent  

We are going to use substitution

Making y the subject;

Equation 1: 0.3y=0.6x+0.3

Dividing both sides by 0.3

y = 2x + 1

Equation 2: 1.2x+0.6=0.6y

Dividing both sides by 0.6

y = 2x + 1

This means both equations are similar and we can't get a solution.

Therefore, the system of equations is inconsistent.

6 0
2 years ago
If B=A, where on the number line will B appear?
Temka [501]
If B = A than B will appear in exactly the same location as A

The answer is B.

If B was less than A it would apear on the left of A and if it was greater than A it would apear right from A.
6 0
3 years ago
Simplify the expression. 3–9 • 36 • 36
DIA [1.3K]

Step-by-step explanation:

3 - (9 \times 36 \times 36)

3 - (324 \times 36)

3 - (11664)

= (11661)

8 0
3 years ago
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