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Elan Coil [88]
3 years ago
5

In algebra, we use a(n) __to represent a variable. Answer here

Mathematics
1 answer:
Vlada [557]3 years ago
3 0

Answer:

x or another letter

Step-by-step explanation:

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Peter is at a lumber yard. He gets 2 free boxes of nails for every 10 boards he buys. Write an expression for the number of boxe
Sati [7]
A. The number of 10-boards Peter bought is equal to n divided by 10. Then, each of the 10-boxes will get two boxes of nails. The number of boxes of nails that Peter will have after buying n boards will be,

    N = (2)(n/10)

Simplifying,

<em>   N = n/5</em>

b. If the number of boards are 90 then,

     N2 = (90/10)(2)(100 nails/box)
     N2 = 1800

Answer: 1800
7 0
4 years ago
Read 2 more answers
The equation of a circle is x2 +y2 =81 what is the diameter of the circle
Assoli18 [71]

Answer:

pretty sure it's 9.

Step-by-step explanation:

square root of 81 is 9. 3 is its radius.

4 0
3 years ago
Which equation describes a parabola that opens up or down and whose vertex is at the point (h,v)
Serggg [28]

y  = a ( x - h)^2 + v             


a is positive when the parabola opens up  and negative when it opens down.
7 0
4 years ago
bruce is playing with a set of base-ten blocks. he has 65 ten-blocks and 7 one-blocks. what is the value of his blocks
Oksi-84 [34.3K]
The 65 tens blocks can be solved by doing 65x10 which is 650.  the 7 ones blocks can be solved by 1x7  which is 7 so you then add up 650 and 7 to get a grand total of 657
5 0
4 years ago
2.5t + 350 = 3t + 225? What is the soulution ?
Tanzania [10]

Answer:

t = 41.6 (the 6 is repeating)

Step-by-step explanation:

2.5t + 350 = 3t + 225

Subtract 2.5t from both sides to get:

350 = 3t + 225

Now subtract 225 from both sides to get:

125 = 3t

Divide both sides by three.

t = 41.6 (the 6 is repeating)

7 0
3 years ago
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