Answer:
The Product is negative three (-3)
WHILE
The number is negative one (-1)
Step-by-step explanation:
Since seven more than the product gives 4.
This means 7 + product = 4
By subtracting 7 from both sides we get product as -3.
And since the product of the number and 3 is equal the product
This means number X 3 = -3
By dividing three from both sides you get -1.
There are 38 five point questions and 30 two points questions.
Step-by-step explanation:
Given,
Worth of points in test = 250
Number of questions = 68
Let,
x represent the number of 5 points questions
y represent the number of 2 points question
According to given statement;
x+y=68 Eqn 1
5x+2y=250 Eqn 2
Multiplying Eqn 1 by 2
Subtracting Eqn 3 from Eqn 2
Dividing both sides by 3
Putting x=38 in Eqn 1
There are 38 five point questions and 30 two points questions.
Keywords: linear equation, elimination method
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Step-by-step explanation:
Speed = Distance / Time
given distance = 6km
time = 30 minutes = 30/60 hr = 1/2hr
speed =