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Sergeeva-Olga [200]
3 years ago
11

-x-(-y)+(-x)-y+5 x equals -3 y equals -6

Mathematics
1 answer:
AveGali [126]3 years ago
8 0
It should be -1 I believe.
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B: Alex is 12 years older than George.
UkoKoshka [18]

Answer:

The ratio of George age to Carl's age is 1:12.

Step-by-step explanation:

Let the age of George be 'g'.

Let the age of Alex be 'a'.

Also Let the age of Carl be 'c'.

Given:

The sum of their ages is 68.

So equation can be framed as;

g+a+c=68 \ \ \ \ equation 1

Also Given:

Alex is 12 years older than George.

So equation can be framed as;

a =g+12 \ \ \ \ equation \ 2

Now Given:

Carl is three times older than Alex.

c=3a

But a =g+12

So we get;

c = 3(g+12) \\\\c= 3g+36 \ \ \ \ equation \ 3

Now Substituting equation 2 and equation 3 in equation 1 we get;

g+a+c=68\\\\g+g+12+3g+36=68\\\\5g+48=68

Subtracting both side by 48 using subtraction property of equality we get;

5g+48-48=68-48\\\\5g=20

Now Dividing both side by 5 using Division property of equality we get;

\frac{5g}{5}=\frac{20}{5}\\\\g =4

Hence George age g = 4 \ years

Now Alex age a=g+12 = 4+12 =16\ years

Also Carl's age c=3g+36=3\times 4+36 =12+36 =48\ years

Now we need to find the ratio of George age to Carl's age.

\frac{g}{c}=\frac{4}{48} = \frac{1}{12}

Hence  the ratio of George age to Carl's age is 1:12.

3 0
3 years ago
PLEASE HELP URGENT THANK YOU
Fynjy0 [20]
So far the only true statement I see is that function f is increasing whilst function g is decreasing.

I cannot say yes to the first one as there is a lack of x-intercepts.

Past the interval of 0,2, there are no changes in the line of function g as it remains the same despite the increase in y. Function f on the other hand has a rate of change. 

The y-intercepts are the same (positive 2) so the third statement is out. 

8 0
2 years ago
Which is f(5) for the function -2x^2+2x-3?
zepelin [54]
-2(5)^2+2(5)-3
-2(25)+10-3
-50+10-3
-40-3
=-43
6 0
3 years ago
Correct 48, 947.2547 to the nearest hundred​
VLD [36.1K]

Answer:

48,900

Step-by-step explanation:

Round

7 0
2 years ago
An election ballot asks voters to select four city commissioners from a group of eight candidates. In how many ways can this be​
saul85 [17]
The number of combinations of the 8 candidates taken 4 at a time is:
8C4=\frac{8!}{4!4!}=70\ ways
6 0
3 years ago
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