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Radda [10]
3 years ago
7

(8b+8). 50° Answer: b =

Mathematics
1 answer:
german3 years ago
3 0

Answer:

no bailo sola yo nunca bailo sola te quiero besar intentemoslo ahora

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In a two-digit number, the units digit is twice the tens digit. If the number is doubled, it will be 9 more than the number reve
taurus [48]
10(2x)+x 
21x is the original number

12x is the reversed number
24x is the reversed then doubled number

Set up an equation:
24x=21x+9
3x=9
x=3

The original number is 63 and the reversed number is 36, which then is 72 when doubled.
5 0
3 years ago
Read 2 more answers
A roof drops 6 feet for every 3 feet forword,determine the slope of the roof the slope can be positive or negative
dalvyx [7]

Answer:

The slope is -2

Step-by-step explanation:

Since the roof is decreasing in height as it goes forward, I know that the slope must be negative. The equation to find the slope is rise/run. The vertical change, or the rise, is -6 feet, so that value goes on top of the fraction. The horizontal value, or the run, is 3 feet so that goes on the bottom of the fraction.

Now our fraction is \frac{-6}{3}

If you simplify that fraction, you'll get -2.

8 0
3 years ago
State the following numbers correct to the decimal place given 78.333 (2d.p) 0.06045 (4d.p) 288.598 (2d.p) 0.1008 (3d.p)
Alex Ar [27]

78.33 (3 rounds down)

0.0605 (5 rounds up)

288.60 (8 rounds up, but there is a nine, so nine becomes 0 and 5 becomes 6)

0.101 (8 rounds up)

6 0
3 years ago
PLEASE ANSWER WILL GIVE 75 POINTS!!!!!
alexdok [17]

Answer:

\frac{4}{33} and \frac{1}{27}

Step-by-step explanation:

We require 2 equations with the repeating numbers placed after the decimal point.

let x = 0.1212...... (1) ← multiply both sides by 10

100x = 12.1212.... (2)

subtract (1) from (2) thus eliminating the repeating numbers

99x = 12 ( divide both sides by 99 )

x = \frac{12}{99} = \frac{4}{33} ← in simplest form

-------------------------------------------------------

let x = 0.037037....... (1) ← multiply both sides by 1000

1000x = 37.037037..... (2)

subtract (1) from (2) to eliminate the repeating numbers

999x = 37 ( divide both sides by 999 )

x = \frac{37}{999} = \frac{1}{27} ← in simplest form

8 0
2 years ago
A circle has a diameter of 16 mm. How long is its radius?
konstantin123 [22]
Radius = half of diameter
16 mm/2 = 8 mm
Solution: 8 mm
8 0
3 years ago
Read 2 more answers
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