Question

answer fast to be brain list and write first mark us brain list no answer properly and correctly
1 In the equation 5x=-9-2x,transposing -2x to the LHS we get
a 5x-2x=-9
b -5x-2x=-9
c 5x+2x=-9
d -5x+2x=-9
2 Which of the following equation doesn't have a solution in an integer?
a 2x+3=-1
b x/2-7=3/7
c 1-3x=1
d 3(x+8)=3
3 During COVID-19,x students from class VII-A donated masks and sanitizers. The cost of one mask is Rs 10 and for sanitizer is Rs 25. The total money collected by the class teacher is Rs 2100. Then the number of students who contributed to charity is
a 40
b 50
c 60
d 30
4 Raji went shopping in a mall. She bought a dress for Rs 2100. The sales boy told her that its on 30% sale. How much was the dress being sold for before the sale?
a Rs 3500
b Rs 3400
c Rs 3100
d Rs 3000
5 Three fourths of the goats are grazing in the field, half of the remaining are playing nearby. Rest 9 are drinking water from the pond. Then the total number of goats is.
a 70
b 71
c 72
d 73

Answer 1

Answer:

1. c
2. b
3. c

Step-by-step explanation:

1. 5x=-9-2x

5x+2x=-9

2. x/2-7=3/7

x/2= 52/7