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barxatty [35]
4 years ago
10

Can someone help me with these two questions??

Mathematics
1 answer:
igor_vitrenko [27]4 years ago
4 0

Answer:

14. A. Commutative Property of Addition.

15. D. k=54

Step-by-step explanation:

6 + 9 = 9 + 6 is an example of the Commutative Property of Addition so that is your answer.

k + (-12) = 42. What you do is add the 12 to both sides to get your answer.

k=54 is your answer.

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Madison is entering a bicycle race for charity. Her mother pledges $0. 80 for every. 5 miles she bikes. If Madison bikes 12 mile
dusya [7]

so Im not sure about how an equation for this would look but im assuming her mom doesnt pay unless a full 5 is completed, in that case her mom donates $1.6, in the case less than 5 is still donated for we make .16 * 12 which is $1.92

5 0
2 years ago
∠WXY and ∠ZXY are adjacent angles. What equation must always be TRUE? m∠WXY=m∠ZXY
Hitman42 [59]

Answer:

m∠WXY+m∠ZXY=m∠WXZ

Step-by-step explanation:

You don't know the angles to be congruent (equal measures), complementary (measures add to 90 deg), or supplementary (measures add to 180 deg); all you know is that they are adjacent, so the sum of the measures of the two smaller angles equals the measure of the larger outer angle.

Answer: m∠WXY+m∠ZXY=m∠WXZ

3 0
4 years ago
How do i solve this?
ohaa [14]
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3 0
4 years ago
A) When 3 is subtracted from a<br>number, the result is 8.​
mestny [16]

Answer:

11

Step-by-step explanation:

check:

3+8=11

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5 0
4 years ago
Read 2 more answers
The first number plus the second number equals 83, the first number
timama [110]

Answer:

I hope this helps

Step-by-step explanation:

So the way to handle a problem like this is to rewrite the three numbers in terms of their relationship to one of the three numbers.  Let's call the numbers x, y, and z, where x is the first number, y is the second, and z is the third.

We know x + y + z = 83.

Since the third number is twice the second, we say that z = 2y.

Since the second number is seven less than the first, we say that y = x - 7.  We can rewrite this as x = y + 7.

Now all three can be written in terms of y.

x + y + z = 83

(y + 7) + y + 2y = 83

4y + 7 = 83

4y = 76

y = 19

The second number is 19.  The first is 19 + 7 or 26, and the third is 2 times 19 or 38.

A check reveals that 26 + 19 + 38 = 83.

5 0
3 years ago
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