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KiRa [710]
3 years ago
12

8:12=6:a what is the value of a

Mathematics
2 answers:
Whitepunk [10]3 years ago
7 0

Answer:

9

Step-by-step explanation:

\frac{8}{12}=\frac{6}{a}

\frac{2}{3}=\frac{6}{a}

2a=6\cdot{3}

2a=18

a=\frac{18}{2}

a=9

statuscvo [17]3 years ago
5 0

Answer:

a = 9

Step-by-step explanation:

So in this case you just cross multiply

8 : 12 = 6 :  a

6(12) = 8(a)

72 = 8a

Divide both sides by 8

a = 9

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The value of y is directly proportional to the value of x. If y = 65 when x =325, what it is the value of y when x = 30?*
BartSMP [9]
Answer is a - 6 because 325 divided by 65 is 5 so then 30 divided by 5 is 6
5 0
3 years ago
What is the fraction ten twelfths in it's simplest form?
Klio2033 [76]

Hi there!

Below is the fraction we are working with:

\frac{10}{12}

To simplify this fraction down to its lowest form, we see what number(s) can go into the numerator and the denominator evenly. We can start off with the number 2. 2 goes evenly into each number, can't it? :)

So, we can cut down \frac{10}{12} to \frac{5}{6}.

\frac{5}{6} is already in it's simplest form. Now, we can see if they're equivalent. If not, we have to start all over.

Since \frac{10}{12} equals 83.3, we have to make sure \frac{5}{6} does, too.

Just divide the numerator by the denominator to see what you have.

5 ÷ 6 = 83.3 with a repeating decimal, so they're equivalent!

Hope this helps!

If you need anything else, don't just sit there - Let me know! :D

6 0
3 years ago
Read 2 more answers
Write in standard form: 40,000 + 200 + 8000 + 9 + 30
Zepler [3.9K]

It is 48,239.


I deeply apologize if this is not what you meant.

4 0
4 years ago
To determine which side of a linear inequality to shade in for its graph, you should pick a point on one side of the dashed or s
alex41 [277]

Answer:

False

Step-by-step explanation:

4 0
3 years ago
All questions to be solved using linear combination.
monitta
1)
I:x-y=-7
II:x+y=7

add both equations together to eliminate y:
x-y+(x+y)=-7+7
2x=0
x=0

insert x=0 into II:
0+y=7
y=7

the solution is (0,7)

2)
I: 3x+y=4
II: 2x+y=5

add I+(-1*II) together to eliminate y:
3x+y+(-2x-y)=4+(-5)
x=-1

insert x=-1 into I:
3*-1+y=4
y=7

the solution is (-1,7)

3)

I: 2e-3f=-9
II: e+3f=18

add both equations together to eliminate f:
2e-3f+(e+3f)=-9+18
3e=9
e=3

insert e=3 into I:
2*3-3f=-9
-3f=-9-6
-3f=-15
3f=15
f=5

the solution is (3,5)

4)
I: 3d-e=7
II: d+e=5

add both equations together to eliminate e:
3d-e+(d+e)=7+5
4d=12
d=3

insert d=3 into II:
3+e=5
e=2

the solution is (3,2)

5)
I: 8x+y=14
II: 3x+y=4

add I+(-1*II) together to eliminate y
8x+y+(-3x-y)=14-4
5x=10
x=2

insert x=2 into II:
3*2+y=4
y=4-6
y=-2

the solution is (2,-2)
8 0
4 years ago
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