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jeka57 [31]
3 years ago
7

PLS HELP I NEED TO FIND X!!!

Mathematics
1 answer:
Mashutka [201]3 years ago
5 0

Answer:

x =7.62

Step-by-step explanation:

Using Pythagoras Theorem:

      a² + b² = c²

      7² + 3² = x²

      x² = 49 + 9

       x = √58 .......in radical form

       x =7.62 .....in 2 decimal form

      x = 7.6 ......in nearest tenth place

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Todd earned some money doing chores. He spent one-fourth of his money see a movie. Then he spent $6.00 on popcorn and drinks. Wh
Vsevolod [243]

Answer: Todd earned $40 mowing the neighbor's lawn.

Step-by-step explanation:

Let x represent the amount of money that Todd earned, mowing his neighbor's lawn.

He spent one-fourth of his money see a movie. It means that the amount spent in seeing a movie is x/4

Then he spent $6.00 on popcorn and drinks. It means that the total amount spent is

x/4 + 6

The amount left would be

x - (x/4 + 6) = x - x/4 - 6

When he went home, he had $24.00 left. It means that

x - x/4 - 6 = 24

x - x/4 = 24 + 6

x - x/4 = 30

Cross multiplying by 4, it becomes

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7 0
3 years ago
Solve the equation for x.
horrorfan [7]
The correct answer is D

6 0
3 years ago
A) If the line 2x + 3y -8=0 is perpendicular to the line kx-6y =9 find k.​
blsea [12.9K]

Answer:

k = 9.

Step-by-step explanation:

2x + 3y -8=0

3y = -2x + 8

y = -2/3 x + 8/3

So the slope of this line is -2/3.

Therefore the slope of a line perpendicular to the above is -1 /-2/3

= 3/2.

kx - 6y = 9

6y = kx - 9

y = k/6x - 3/2

But the slope is 3/2,

So k/6 = 3/2

2k = 18

k = 9.

3 0
3 years ago
Find the area. PLEASE HELP!!!! ​
Black_prince [1.1K]

Answer:

623 mm²

Step-by-step explanation:

I am going to split this shape into a 15mm x 19mm rectangle and a 26mm x 13mm rectangle. (the 19mm comes from 32mm at the bottom minus 13mm at the top to find how long the first rectangle is)

Rectangle 1: 15mm • 19mm = 285mm²

Rectangle 2: 26mm • 13mm = 338mm²

Total Area: 285mm² + 338mm² = 623mm²

7 0
2 years ago
Help math fractions <br> 3 2/3 - 1 11/12=
Allisa [31]

Answer:

i wrote this as a decimal so um i hope this at least helps :). 1.75

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
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