Yes, thats correct. Hope it helps.
Answer:
There are 33 multiple choice questions and 9 short answer questions on the test
Step-by-step explanation:
In this question, we are asked to calculate the number of multiple text answers and short answers given in a test, given that the test taker will attempt a number of questions and have a particular score.
Since we do not know the number of these questions individually, let’s represent them with variables. Let the number of multiple choice questions to be answered be x and the number of short answers questions to be given be y.
Mathematically,
x + y = 42. (I)
Also, the total points is 60, with multiple choice of 1 point each and short answers of 3 points each. Mathematically, this means;
x(1) + y(3) = 60.
x + 3y = 60. (ii)
Now let’s solve both 1 and 2 simultaneously.
From 1, let’s say y = 42-x and substitute this in 2
x +3(42-x) = 60
x + 126 -3x = 60
-2x = 60-126
2x = 66
x = 66/2
x = 33
From y = 42-x, we can substitute the value of x and get y.
y = 42-33
y = 9
The best arrangement can be
- 3 rows and 4balls each row
So
- Length of one row=1.8(4)=7.2cm
- Width=1.8(3)=5.4cm
- Height=1.8(2)=3.6cm
So
TSA
- 2(LB+BH+LH)
- 2(5.4(7.2)+(7.2)(3.6)+3.6(5.4))
- 2(84.24)
- 168.48cm²
Total cost
Answer:
Step-by-step explanation:
we know that
The simple interest formula is equal to
where
I is the Simple interest Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal form
t is Number of Time Periods in years
in this problem we have
substitute in the formula above
