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FinnZ [79.3K]
3 years ago
9

What is the solution to the equation 0.8m − 4 = −0.8m?

Mathematics
1 answer:
lidiya [134]3 years ago
8 0

Answer:

m = 2.5

Step-by-step explanation:

Add 0.8 m to both sides, obtaining 0.8m + 0.8m - 4, or 1.6m - 4 = 0.

Now add 4 to both sides.  Result:  1.6m = 4, and m = 4/1.6 = 2.5 = m

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Write the number equal to 5 tens and 23 ones
kipiarov [429]
5 tens= 50
23 ones= 23

Add them together and you get 73. But multiply them you get 1150.
7 0
3 years ago
Read 2 more answers
Increase 3000 by 5.4%
katen-ka-za [31]
------------------------------------
Original Number
------------------------------------
3000

------------------------------------
Increase
------------------------------------
5.4% of 3000
= 0.054 x 3000
= 162

------------------------------------
New Total
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3000 + 162 = 3162

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Answer: 3162
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6 0
3 years ago
Please help<br> Write 0.16 as a fraction. <br> A) 1/12 <br> B) 1/3 <br> C) 1/6 <br> D) 1/9
umka2103 [35]

0.16 as a fraction becomes 16/100. This can be simplified to 4/25.

None of those are the right answer, though 1/6 as a decimal is 0.16666666... (the 6s repeat forever) so option C is what they're looking for.

5 0
3 years ago
Read 2 more answers
A cable extends from the top of a radio tower to a point 360 feet from the base of the tower. If the
Neko [114]

Step-by-step explanation:

we have a right-angled triangle :

the Hypotenuse (baseline opposite of the 90° angle) is the 850 ft cable from the top of the tower down to the point on the ground 360 ft away from the tower.

then the ground distance (360 ft) and the height of the tower are the 2 legs.

so, we can use Pythagoras

c² = a² + b²

with c being the Hypotenuse.

in our case

850² = 360² + height²

height² = 850² - 360² = 592,900

height = 770 ft

the tower is 770 ft tall.

6 0
2 years ago
Read 2 more answers
The length of a rectangle is 6 meters more than three times the width. The perimeter of the rectangle is 44 meters. What are the
Oksana_A [137]

Answer:

width=4

length=18

Step-by-step explanation:

length-6=3width

length=3width+6

also:

perimeter of the rectangle=2(length+width)

44/2=width+length

22=width+length

now put the length we found in the 1st equation, in 22=width+length

=>22=width+3width+6

22-6=4width

width=4

now do the exact same thing with one of these equations:

22=width+length

length=3width+6

I'd do it with the 1st one:

22=4+length

22-4= length

length=18

6 0
4 years ago
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