if 15is subtract ed in from a number it because-5this statement in the form an equation is
Answers
Step-by-step explanation:
With the help of an experiment, explain the chemical effect of electric current.
With the help of an experiment, explain the chemical effect of electric current.
Illustrate the experimental set up with a circuit diagram. the experimental set up with a circuit diagram.
Answer:
Solution 4:
(i) x+4=9
x=9-4
x= 5
(ii) y-2=8
y=8+2
y=10
(iii) a\times10\ =\ 70a×10 = 70
(iv) \frac{b}{5}=\ 6\
5
b
= 6
b= 30
(v) \frac{3}{4}\times t\ =\ 15\
4
3
×t = 15
t\ =\ 15\times\frac{4}{3}t = 15×
3
4
t = 20
(vi) \frac{b}{5}=\ 6\
5
b
= 6
b\ =\ 6\ \times5\b = 6 ×5
b = 30
(vii) \left(\frac{1}{4}\times x\right)-\ 4\ =\ 4\(
4
1
×x)− 4 = 4
\frac{x}{4}-\ 4\ =\ 4\
4
x
− 4 = 4
\frac{x}{4}=4+4\
4
x
=4+4
x\ =\ 8\times4x = 8×4
x= 32
(viii) 6y-6 = 60
6y = 60+6
6y = 66
y\ =\ \frac{60}{6}y =
6
60
y = 11
(ix) \frac{z}{3}+\ 3\ =\ 30\
3
z
+ 3 = 30
\frac{z}{3\ }=\ 33
3
z
= 33
z\ =\ 33\times3z = 33×3
z = 99