Answer:
8
Step-by-step explanation:
Note that √ signifies "square root."
If you're unsure of what √64 is, then make a short table of perfect squares until 64 comes up:
1 1
2 4
3 9
4 16
5 25
6 36
7 49
8 64
Thus, the square of 8 is 64 and so √64 = 8
Answer:
509.8
Step-by-step explanation:
The last one on 1/23
The best method for solving # 1 is substitution
x - 0.9y = 4.5......x = 0.9y + 4.5
now sub 0.9y + 4.5 in for x in the other equation
1.5(0.9y + 4.5) - 1.9y = -29 ----distribute through the parenthesis
1.35y + 6.75 - 1.9y = -29
1.35y - 1.9y = -29 - 6.75
-0.55y = -35.75
y = -35.75 / -0.55
y = 65
x - 0.9y = 4.5
x - 0.9(65) = 4.5
x - 58.5 = 4.5
x = 4.5 + 58.5
x = 63
solution is (63,65)
The best method for solving # 4 is by elimination
14x + 7y = 217
14x + 3y = 189...multiply by -1
-----------------
14x + 7y = 217
-14x - 3y = -189 (result of multiplying by -1)
----------------add
4y = 28
y = 28/4
y = 7
14x + 7y = 217
14x + 7(7) = 217
14x + 49 = 217
14x = 217 - 49
14x = 168
x = 168/14
x = 12
solution is (12,7)
You need say how big the bathtub it is or you cant do it.
type the rest and ill try to answer it
Answer:
10 kits
Step-by-step explanation:
Because the price of one kit is $3.45 (pencil, pen, eraser, and a notebook). You can get 10 kits for $34.50. 11 kits would be over the amount she would be willing to pay for the kits.
Hope this is helpful, to you have a gret day! Brainliest would be awesome.
