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lora16 [44]
2 years ago
8

PLEASE HELP could this be 110, maybe?? I've tried both 40 and 100 already.​

Mathematics
2 answers:
Firdavs [7]2 years ago
3 0
180-70-30=80
The answer is 80
The two triangles are the same.
Corresponding angles of congruent triangles are equal.
A triangle's three angles add up to 180 degrees.
pickupchik [31]2 years ago
3 0

Answer:

80°

Step-by-step explanation:

<A+<B+<C=180

30+<B+70=180

100+<B=180

<B=180-100

= 80

consider triangle ABC and triangle EDC

AC=CE (given

BC=CD (given

<ACB=<ECD (vertically opposite angles are equal)

therefore triangle ABC is congruent to triangle EDC

<B=<D (CPCT)

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3<br> V = 63 cm<br> Can someone please help with this?
tatyana61 [14]

Answer:

v=21cm

Step-by-step explanation:

v= 63/3

v= 21cm

5 0
2 years ago
There are 14 rows of seats in a cinema.
xeze [42]

Answer:

24 tickets were not sold

Step-by-step explanation:

Here, we want to get the number of unsold tickets

In each row, there are 15 seats

In the Cinema, there are 14 rows

The total number of seats is thus;

15 * 14 = 220 seats

If all the 220 seats were booked, the total amount of ticket sales would have been;

220 * 6.5 = £1430

But in this case, the amount generated is £1,274

Hence, the difference in these amounts will be;

1430 - 1274 = £156

To get the number of tickets unsold, we have to divide the amount here by the price per unit ticket

Mathematically, we have this as;

£156/£6.5 = 24

3 0
3 years ago
The point (5 5/8, 2 1/4) lies on a line that represents a proportional relationship between two units of measure.
neonofarm [45]

9514 1404 393

Answer:

  a) k = 2/5

  b) y = 2/5x

  c) y = 2 3/5

Step-by-step explanation:

<h3>a)</h3>

The proportional relation is described by the equation ...

  y = kx . . . . . . k is the constant of proportionality

The value of k can be found by dividing the equation by x:

  y/x = k = (2 1/4)/(5 5/8) = (9/4)/(45/8) = 18/45

  k = 2/5

__

<h3>b)</h3>

As above, the equation is ...

  y = kx

  y = 2/5x

__

<h3>c)</h3>

Using 6.5 for x, we have ...

  y = (2/5)(6.5) = 2.6 = 2 3/5

5 0
2 years ago
Algebra isn’t my best subject, please help
kogti [31]

The Distributive property states that when we have the statement a(b + c), we can "distribute" the a by multiplying a times both terms that are inside the parenthses.

So in this problem, 2(5 + 7) can be simplified by distributing the

2 through both terms that are inside the set of parenthses.

So we have (2 · 5) + (2 · 7).

8 0
3 years ago
Help me please:(:(:(:(:(
Dmitry [639]

Answer:

ndjndkjsdf

Step-xplanation:fdjsdnfdjnfdfsfd

7 0
3 years ago
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