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3 years ago

Mark's brother is five years or than mark. thier ages combinded adds up to 23. How old is mark

Mathematics

2 answers:

Serjik [45]3 years ago

7 0

Answer: 15

Step-by-step explanation:

drek231 [11]3 years ago

6 0

Answer:

Step-by-step explanation:

Mark is 18 years old.

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Fractions equivalent to 21/28

Airida [17]

21/28 can be simplified to:

3/4

Any fraction that is equal to 3/4 or 75% will be equivalent.

Examples:

30/40, 75/100

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4 years ago

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Paige has 3 coats: a pink one, a red one, and a white one. She has a black scarf, a gray scarf and 1 set of white gloves. Determ

IRISSAK [1]

Hi there, again! Hopefully this helps, again!

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Since she has 3 coats, 2 scarfs, and 1 glove:

She has 6 ways to choose a coat, a scarf, and a glove(s).

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

My 6 combinations:

1.) Red coat, black scarf, white glove(s).

2.) White coat, grey scarf, white glove(s).

3.) Pink coat, black scarf, white glove(s).

4.) Red coat, grey scarf, white glove(s).

5.) White coat, black scarf, white glove(s).

6.) Pink coat, grey scarf, white glove(s).

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3 years ago

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The standard enthalpy of combustion of ethene gas, , is at . Given the following enthalpies of formation, calculate for .

arsen [322]

Answer:

The standard enthalpy of combustion of ethene gas, , is at . Given the following enthalpies of formation, calculate for .

Step-by-step explanation:

The standard enthalpy of combustion of ethene gas, , is at . Given the following enthalpies of formation, calculate for .

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3 years ago

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The measure of an angle is 23 less than 5 times it’s supplement. Find the angle measurement. Show/explain work

sertanlavr [38]

Let the measure of an angle be "a"
let the supplement be "s"

a= s-23

8 0

3 years ago

Solve 8x + c = k for x. O A. X = B(k -C) O kto B. X = 8 O C. X = ķ-6 8 D. x = 8(K+c)

hjlf

Answer: x = k-c/8

Step-by-step explanation:

APEX

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3 years ago