Question

Answer all sums Don't only answer 1 Sum.... Do all ....
Please I can't manage my homework.....​

Answer 1

Answer:

Step-by-step explanation:

Question 1:

Let the price of mugs be = x

Price of plates = ( x + 20 )

Price paid in total ( in cents ) = 320 cents

The equation that will be constructed will be,

$(x+20)+x=320\\2x+20=320\\2x=320-20\\2x=300\\x=150$

Now let's check the answer,

$(150+20)+150=320\\170+150=320\\320=320$

The answer is correct!

Question 2:

Let the first number be = x

Let the second number be = ( x + 2 )

The equation that will be constructed,

$x+(x+2)=60\\2x=60-2\\2x=58\\x=29$

Now let's check the answer,

$29+(29+2)=60\\29+31=60$

I know these are not even, but it seems that your question is impossible because there are no even numbers that add up to 60.

Question 3:

Speed of the bus = 45km/h

Let the speed of the car be = x

Speed when moving towards each other = ( x + 45 )

The time between 12:00 ( noon ) and 2:00 = 2 hours

The equation that will be constructed,

$Distance=Speed\times Time\\250=( x+45) \times 2\\250=2x+90\\250-90=2x\\160=2x\\x=80$

Speed of car is 80km/h.

Now let's check the answer,

$250=(80+45)\times 2\\250=125\times2\\250=250$

The answer is correct.

Please mark as brainliest. This took a lot of time. Thanks! :)