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allsm [11]
2 years ago
14

Norris wrote the equation 7x9=63.Blake wrote the equation 7x9=9x7.Who wrote a correct equation?Explain

Mathematics
1 answer:
Karolina [17]2 years ago
7 0

Answer:

Step-by-step explanation:

They are both technically right 7 time 9 is 63 but 7 time 9 is equivalent to 9 times 7

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Mark and Don are planning to sell each other their marble collections at a garage sale. If Don has 1 more than 3 times the numbe
Volgvan

Answer: Mark has 28 marbles while Don has 85 marbles.

Step-by-step explanation:

Let x represent the number of marbles that Mark has.

Let y represent the number of marbles that Don has.

If Don has 1 more than 3 times the number of marbles Mark has, it means that

y = 3x + 1

The total number of marbles is 113. It means that

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Substituting y = 3x + 1 into equation 1, it becomes

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4 0
3 years ago
lele's soccer team scored a total of 40 goals this year. They scored 15 more goals this year than they did last year. Write an a
VashaNatasha [74]

Answer:

g + 15 = 40

or

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Step-by-step explanation:

7 0
2 years ago
The bottom one Staples has 9 cases of crayons with 1452 boxes in each case
romanna [79]

Answer:

d. 16,092

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3 0
2 years ago
Please show your work. Find XY
Sidana [21]
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Because YW is a perpendicular bisector, we can say that TW and WZ are both equal to 3. It tells us that XZ is 12, so that means that XW must be 12+3 which equals 15.

It also tells us that YW is 8. So we can use the Pythagorean Theorem to find the hypotenuse of Triangle XWY. Thus, 15^{2}  +  8^{2} =  XY^{2}

To solve this equation, square and add both of the terms on the right like this:
289 =  XY^{2}

And then take the square root of both sides. Your final answer should be: 
XY = 17. 
3 0
3 years ago
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