Find the value of two numbersif their sum is 12 and their difference is 4

Mathematics

2 answers:

daser333 [38]3 years ago

7 0

The simple version is this

12-4= 8

Sonbull [250]3 years ago

5 0

We can set up a system of equations:

x + y = 12
x - y = 4

Adding these two together:

2x = 16
x = 8

Substituting 8 in the first equation:

8 + y = 12
y = 4

Hope this helps!

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10)<br>Simplify the expression.<br>6(4x + 12) – 9x - 18 - 4(-6)<br>

aleksklad [387]

Answer:

$\boxed{\bold{15x+78}}$

Step By Step Explanation:

Apply Rule - (-a) = a

$\bold{6\left(4x+12\right)-9x-18+4\cdot \:6}$

Multiply: 4 · 6 = 24

$\bold{6\left(4x+12\right)-9x-18+24}$

Expand $\bold{6\left(4x+12\right): \ 24x+72}$

= $\bold{24x+72-9x-18+24}$

Simplify $\bold{24x+72-9x-18+24}$

= $\bold{15x+78}$

━ Mordancy ━

4 0

3 years ago

7/8 - 1/4 - 1/2= ??

madreJ [45]

Step-by-step explanation:

We can break this up into pieces, first we do, 7/8 - 1/4, find the least common denominator which is 8, so the equation will be 7/8 - 2/8, which we can now subtract and will give us, 5/8, now that we have done that, we can do 5/8 - 1/2. Since we know that half of 8 (our denominator) is 4. Then the equation would be 5/8 - 4/8, which brings us to 1/8 as our final answer.

Cheers!

7 0

2 years ago

Find the volume of the figure shown below.

Alex777 [14]

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3 0

2 years ago

Write a division number story with an answer of 1/4

Rasek [7]

Answer:

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