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3 years ago

Help me plss!!!!!!!!!

Mathematics

1 answer:

jonny [76]3 years ago

5 0

Answer:

B. SSS

Step-by-step explanation:

We are given two congruent sides.

The third side AB is common and therefore congruent to itself.

It gives us 3 congruent sides.

This is a side-side-side or SSS postulate.

Correct choice is B

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3 years ago

A person on tour has dollar 360 for his daily expenses. If he extends his tour for 4 days, he has to cut down his daily expenses

Greeley [361]

Answer:

The original duration of the tour is 18 days.

Step-by-step explanation:

Let

the number of days spent be T

Daily expenses be D

Initially ,

total tour expenses was 360

$D \times T=360$

$D = \frac{360}{T}$ -------------(1)

If he extends his tour for 4 days, he has to cut down his daily expenses by dollar 3

$(D + 4) \cdot(T -3) = 360$ ---------------(2)

Expanding the eqaution(2)

DT-3D + 4T -12 = 360

Substituting the value of D

$(\frac{360}{T})T -3( \frac{360}{T}) + 4T -12 = 360$

$(\frac{360}{T})T -3( \frac{360}{T}) + 4T= 360 + 12$

$(\frac{360}{T})T -3( \frac{360}{T}) + 4T= 372$

$360 - ( \frac{1080}{T}) + 4T= 372$

$( \frac{1080}{T}) + 4T= 372 - 360$

$( \frac{1080}{T}) + 4T= 12$

$1080 + 4T^2= 12T$

Solving the quadratic equation we get

T = 18 and T = -15

T is the number of gays and it cannot be negative , hence T is 18

Substituting in equation (1) we get

$D = \frac{360}{18}$

D = 20

4 0

3 years ago

maggie's brother is 3 years younger than twice her age. the sum of their ages is 24. write solve an equation to determine maggie

prohojiy [21]

Maggie =x
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x+2x-3= 24
27 /3= 3 x/3
x= 9 years

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3 years ago