3 years ago

Which statement listed below illustrates the reflexive property of congruence

Mathematics

1 answer:

bekas [8.4K]3 years ago

4 0

It’s B I think so if it’s not please don’t be mad

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Write and solve an equation using the constant of proportionality to answer each question.

yaroslaw [1]

Answer:

15 teachers

Step-by-step explanation:

Given:

number of children is c

number of teachers is t

$\frac{c}{t}$ = $\frac{14}{3}$ (rearrange)

t = $\frac{3}{14}$ x C

When C = 70,

t = $\frac{3}{14}$ x 70

t = 15 teachers

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3 years ago

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To rent a carpet cleaner at the hardware store, there is a set fee and an hourly rate. The rental cost, c, can be determined usi

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The set cost is 25, because c=25 when h=0. So, this leaves 3h as the hourly rate.

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3 years ago

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Which expression is equivalent to – 8( – 5k+4)+6k

Viktor [21]

Answer:

46k - 32

Step-by-step explanation:

–8(–5k + 4) + 6k
=> (40k - 32) + 6k
=> 40k - 32 + 6k
=> 46k - 32

Hence, the expression is 46k - 32.

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2 years ago

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ehidna [41]

The answer should be $12

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3 years ago

A certain aircraft can fly 798 miles with the wind in 3 hours and travel the same distance against the wind in 7 hours. What is

Vesnalui [34]

Answer:

76 mph

Step-by-step explanation:

Let x mph be the speed of the aircraft and y mph be the speed of the wind.

Distance = 798 miles

Time = 3 hours

Speed = x + y mph

Then

$3(x+y)=798\\ \\x+y=266$

<u>Against the wind:</u>

Time = 7 hours

Speed = x - y mph

Then

$7(x-y)=798\\ \\x-y=114$

Add these two equations:

$x+y+x-y=266+114\\ \\2x=380\\ \\x=190\ mph$

Subtract these two equations:

$(x+y)-(x-y)=266-114\\ \\x+y-x+y=152\\ \\2y=152\\ \\y=76\ mph$

The speed of the aircraft is 190 mph, the speed of the wind is 76 mph

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4 years ago