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Blababa [14]
3 years ago
11

Plz help!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
UNO [17]3 years ago
7 0

Answer:

a) direct

b) $3

c) y = 3x

d) To buy 4 pens it costs $12

e) 8 pens

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Allisa [31]

Answer:

Step-by-step explanation:

36

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4 0
3 years ago
Determine if the following triangles are congruent by SSS or SAS.
Sergeu [11.5K]

Answer:

They are congruent by SAS (Side Angle SIde) test or congruence criterion

Since,

In triangle ABD and triangle BCD

AB = BC (Given)

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Therefore triangle ABD and triangle BCD by SAS (Side Angle SIde) test or congruence criterion

6 0
2 years ago
Trisha and Byron are washing and vacuuming cars to raise money for a class trip. Trisha raised $38 washington 5 cars and vacuumi
ANEK [815]

Answer:

They charged <u>$6</u> for washing and <u>$2</u> for vacuuming the car.

Step-by-step explanation:

Let the charge of washing a car be 'x'.

And also let the charge of vacuuming a car be 'y'.

Now according to question, Trisha raised $38 washing 5 cars and vacuuming 4 cars.

So framing the above sentence in equation form, we get;

5x+4y=38\ \ \ \ \ equation\ 1

Again according to question, Byron raises $28 by washing 4 cars and vacuuming 2 cars.

So framing the above sentence in equation form, we get;

4x+2y=28\ \ \ \ \ equation\2

Now multiplying equation 2 by '2', we get;

2(4x+2y)=28\times2\\\\8x+4y=56\ \ \ \ equation\ 3

Now we subtract equation 1 from equation 3 and get;

(8x+4y)-(5x+4y)=56-38\\\\8x+4y-5x-4y=18\\\\3x=18\\\\x=\frac{18}{3}=6

Now substituting the value of 'x' in equation 1, we get;

5x+4y=38\\\\5\times6+4y=38\\\\30+4y=38\\\\4y=38-30=8\\\\y=\frac{8}{4}=2

Hence They charged <u>$6</u> for washing and <u>$2</u> for vacuuming the car.

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3 years ago
140°<br> 6x + 20<br> Solve for x
yan [13]

Answer:

140

Step-by-step explanation:

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Mars2501 [29]

Answer:

(-5,2) (-7,0)

Step-by-step explanation:

5 0
2 years ago
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