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3 years ago

Find the value of x in each case.

Mathematics

2 answers:

velikii [3]3 years ago

3 0

Answer:

x=11

Step-by-step explanation:

Due to angles DCA and CAB being Alternate Interior Angles, we know that they will be equal. This means that

$DCA=33$ °

Next, we can find the measure of the angle DCE.

Angles BCE and BCA are supplementary. This means that they will add together to be 180°

This means that 180-BCE=BCA

Which means $BCA=180-5x$

As all of the angles in a triangle must add together to be 180 degrees, we can set up the following equation

$33+180-5x+2x=180\\213-3x=180\\3x=33\\x=11$

dsp733 years ago

3 0

Answer:

x=11°

Step-by-step explanation:

If you do the math right you get 33=3x which then makes x=11

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Solve each of the following equations for xx using the same technique as was used in the Opening Exercise.

aleksandrvk [35]

Answer:

The value of x is 3/2.

Step-by-step explanation:

Given data in the question:-

$3^2^x=27$

We have to find the value x.

Let $3^2^x=27$ be eq(i).

Solving eq (i)

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using the properties of the exponents we have

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then n=x

$2x=3\\x=3/2$

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3 years ago

Point A is (-7, 5) and point M is at (0, 4)

Tom [10]

Answer: (7,3)

Step-by-step explanation:

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3 years ago

1.22 on a candy bar, $1.48 on yogurt, $7.98 on a pizza, and $2.79 on bread. If she pays with a $20 bill, how much change will sh

serious [3.7K]

Answer:

She'll receive $6.53.

Step-by-step explanation:

First add everything she purcahsed.

1.22 + 1.48 + 7.98 + 2.79 = 13.47

Then subtract that from how much she paid.

20 - 13.47 = 6.53

So 6 dollars and 53 cents.

7 0

3 years ago

Read 2 more answers

Marcus has 2 3/5 gallon of blue paint.He will use 7/10 of the paint for his room.how much blue paint will Marcus use for his roo

yarga [219]

Answer:

1.82 gallon or 6.9 litres

Step-by-step explanation:

Given

Gallon of blue paint= 2 3/5 = (5*2+3)/5 = 13/5 gallon

Fraction of paint used in painting the room = 7/10 of paint available

= 7/10 * 13/5 =91/50 gallon

= 1 41/50 gallon = 1.82 gallon

**converting gallon into litres

one gallon is equal to 3.79 litres

hence 91/50 gallon = 91/50*3.79 litres = 6.9 litres

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3 years ago

What coordinate pair satisfies both 5x - 3y=22 and -4x + y=-19

Arlecino [84]

Answer:

hello : coordinate pair is: (5 ; 1)

Step-by-step explanation:

you have this system :

5x - 3y=22 ......(1)

-4x + y= -19.....(2)

by (2) : y = 4x -19

put y in (1) : 5x - 3 (4x -19) =22

5x -12x +57 = 22

- 7x = -35

x = 5

but : y = 4x -19 so : y = 4(5) -19 = 1

coordinate pair is: (5 ; 1)

6 0

3 years ago