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Vinvika [58]
3 years ago
14

Eight times the difference of a number and nine is the opposite of eight

Mathematics
1 answer:
nlexa [21]3 years ago
6 0
X - the number

8(x-9)=-8 \ \ \ |\div 8 \\
x-9=-1 \ \ \ |+9 \\
x=8

The number is 8.
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Write as a fraction in the simplest from 80%
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Answer:

4/5

Step-by-step explanation:

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What is the variable in the expression below?<br><br><br> 9.X
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I don't want the answer, I want to know how to do it. What is the ratio of 4/5 to 7/15?
Ostrovityanka [42]

Answer:

\displaystyle 1\frac{5}{7}

Step-by-step explanation:

\displaystyle \frac{4}{5} \div \frac{7}{15} = \frac{4}{5} \times \frac{15}{7} = \frac{60}{35} = 1\frac{5}{7}

I can assist whenever I can.

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3 years ago
Point a,b and are collinear and b bet a,c if ab=48,ab=2x +2,and bc=3x+6 what is bc?​
koban [17]
8 bra cause that’s the answer I got for sure
6 0
3 years ago
the temperature is already at 40 degrees it rises 4.5 degrees per minute how long will it take to get to 76 degrees​
Andrei [34K]

Answer:

It will take 8 minutes for the temperature to reach 76°

Step-by-step explanation:

The expression for the total temperature in degrees at time t can be written as;

T=I+EM

where;

T=total temperature

I=initial temperature

E=temperature increase per minute

M=number of minutes

This can also be written as;

total temperature=initial temperature+temperature increase per minute×number of minutes

In our case;

T=76°

I=40°

E=4.5°

M=m

replacing;

76=40+(4.5×m)

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(4.5 m)/4.5=36/4.5

m=8

It will take 8 minutes for the temperature to reach 76°

7 0
3 years ago
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