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Debora [2.8K]
3 years ago
8

A letter used to represent a number is called a _____.

Mathematics
1 answer:
Elza [17]3 years ago
4 0
The answer to your problem is variable.
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WHO IS GOOD AT MATH!!!!! Solve this problem.<br> 326-9²+32= ?
lesya [120]
The answer is 277......
6 0
3 years ago
Read 2 more answers
If a =3x^2+5x-6 and b =-2x^2 -6x+7 then A - B equals
gizmo_the_mogwai [7]

Answer:

5x^2+11x-13

Step-by-step explanation:

a=3x^2+5x-6\\b=-2x^2-6x+7

a-b=(3x^2+5x-6)-(-2x^2-6x+7)=\\3x^2+5x-6+2x^2+6x-7=\\5x^2+11x-13

Hope this helps!

3 0
3 years ago
Assume that y varies inversely with x. If y=7 when x=2/3, find y when x=7/3
fgiga [73]
Inverse variation is of the form:

y=k/x, which we can express as:

yx=k  we are given the point (2/3, 7) so we can solve for k

7(2/3)=k

14/3=k

y=14/(3x), so when x=7/3

y=(14/3)/(7/3)

y=(14/3)(3/7)

y=2
5 0
3 years ago
Pls help 10 pnt <br> X=<br> 6<br> 3.75<br> 2
kolezko [41]

4 × ( x + 4 ) = 3 × ( 3 + 5 )

4 × ( x + 4 ) = 3 × 8

Divide both sides by 4

x + 4 = 3 × 2

x + 4 = 6

Subtract both sides 4

x = 2

5 0
3 years ago
How do you subtract 1.7 from 3
Sidana [21]

Answer:

ok so 3-1.7=1.3

Step-by-step explanation:

this is bc 3-1=2-0.7=1.3

4 0
3 years ago
Read 2 more answers
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