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erastovalidia [21]
3 years ago
12

The sum of two numbers is 70. one number is 8 more than the other. what's the smaller number?

Mathematics
1 answer:
bija089 [108]3 years ago
4 0
X=8+y
x+y=70

Rewrite the first equation to x-y=8
Copy the second equation   x+y=70

Add the two equations and you get 2x=78
Therefore, x=39. Since this is the bigger number the smaller number(y) would have to be 31 because you subtract 8 from x which is 39. 39 is your answer. 
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Mathematics, what's the answer?
sleet_krkn [62]

Answer:

-5

Step-by-step explanation:

The answer is -5 because when you take 3+9 you get 12 and then it says divide that by 3 which then equals 4 then subtract it by 9 which gives you the answer -5.

Hope DaSS HulP,

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5 0
3 years ago
(x-2) is a factor of x^2-3x^2+kx+14. The value of k is?​
BartSMP [9]

Answer:

k = 5

Step-by-step explanation:

I will assume that your polynomial is

x^2 - 3x^2 + kx + 14

If x - a is a factor of this polynomial, then a is a root.

Use synthetic division to divide (x - 2) into x^2 - 3x^2 + kx + 14:

 2      /      1     -3     k     14

                        2     -2    2k - 4

         -------------------------------------

               1        -1    (k - 2)   2k - 10

If 2 is a root (if x - 2 is a factor), then the remainder must be zero.

Setting 2k - 10 = to zero, we get k = 5.

The value of k is 5 and the polynomial is x^2 - 3x^2 + 5x + 14

6 0
3 years ago
Find the greatest common factor of 11 m2 and 8m.
mixas84 [53]

Answer:

1m

The greatest common factor is one. They also have an ‘m’ in common

Hope this helps

8 0
3 years ago
Read 2 more answers
Jackson bought 3 shirts costing $15.98, $19, and $24.50.How much money did he spend altogether?
marusya05 [52]

Answer:

Jackson spent $59.48 altogether

Step-by-step explanation:

15.98+19= 34.98

34.98+24.50= 59.48

6 0
2 years ago
Suppose you hit a fly ball with an initial upward velocity of 20 feet per second. Which of the following equations would be a re
baherus [9]
A=g≈-32

v=⌠a dt  since a≈-32

v=-32t+C, where C is the initial velocity, which we are told is 20 ft/s

v=-32t+20

h=⌠v dt

h=-32t^2/2+20t+C, where C is the initial height, so what is a reasonable initial height?  How about 3 ft since we are swinging a bat around maybe our waist level... maybe :P

h=-16t^2+20t+3

Your choices may have made a different assumption about the initial height of course but you did not show your choices, but certainly it will be:

h(t)=-16t^2+20t+hi, where hi is the initial height in feet.

This of course ignores air resistance and flight dynamics of a spinning ball with seams, which will make a significant difference in real life :)
3 0
3 years ago
Read 2 more answers
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