Joanna bought 7 notebooks and 14 pencils
Step-by-step explanation:
Step 1 :
Let x denote the number of notebooks and y denote the number of pencils Joanna bought.
Cost of one notebook = $ 2.30
Cost of one pencil = $1.42
Step 2 :
Total of notebooks and pencils bought = 21
=> x + y = 21 => y = 21-x
Total cost of notebooks and pencils = $35.98
=> 2.3x + 1.42y = 35.98
Substituting y = 21- x here , we have,
2.3x + 1.42 ( 21-x) = 35.98
2.3x + 29.82 - 1.42x = 35.98
0.88 x = 6.16
=> x = 7
y = 21-x = 21-7 = 14
Step 3 :
Answer :
Joanna bought 7 notebooks and 14 pencils
Answer:
9.058 is less than 9.24
Step-by-step explanation:
there is 0 in the tenth digit and there is 2 in the tenths digit so therefor, 9.058 is less than 9.24
Hope this helps:)
Answer:
467 muffins
Step-by-step explanation:
143 + 211 + 113 = 467
Hello there.
What is the reference angle in radians for 1380°?
Answer: 60
