Question

$5 \times \frac{1}{2} + 3 \times \frac{2}{5} = how$
solve this question​

Answer 1

Answer:

Q2) Solve the following equations:

(a) 2(x + 4) = 12 (b) 3(n – 5) = 21 (c) 3(n – 5) = – 21

(d) – 4(2 + x) = 8 (e) 4(2 – x) = 8

Solution 2:

(a) 2(x+4)= 12

x+4\ =\ \frac{12}{2}x+4 = 212

x+4 = 6

x= 6-4

x= 2

(b) 3(n-5) = 21

n-5\ =\ \frac{21}{3}n−5 = 321

n-5 = 7

n = 7+5

n = 12

(c) 3(n-5) = -21

n-5\ =\ -\frac{21}{3}n−5 = −321

n-5 = -7

n= -7+5

n = -2

(d) 3-2 (2-y) = 7

-2 (2-y) = 7-3

-2(2-y) = 4

2-y\ =\ \frac{4}{2}2−y = 24

2-y = 2

-y = 2 -2

y = 0

(e) 4(2-x) = 9

-4\times2-x\times\left(-4\right)\ =\ 9−4×2−x×(−4) = 9

-8+4x = 9

4x= 9+8

x=\ \frac{17}{4}x= 417

Still have questions? Our expert teachers can help you out

Book a free class now

Answer 2

Answer:

5/2 + 6/5

LCM = 10

25/10 + 12/10 = 37/10