Answer:
4x +12
Step-by-step explanation:
A problem states: "There are 9 more pencils than pens in a container. There are 25 writing utensils in the container in all. How
2 answers:
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Answer:
The number of clarinets musical store sold was 16. and number of trumpets musical store sold was 11.
Step-by-step explanation:
Let the musical store sells 'x' number of trumpets and 'y' number of clarinets.
According to question,
Total number of trumpets and clarinets sold is 27 that is
..............(1)
Also given Trumpets cost $149 and clarinets cost $99.
then the shop sold x trumpets for $149x and sold y clarinets for $99y and total sales were $3233.
thus, ...........(2)
Solving for equation (1) and (2),
Multiply equation (1) by 149 , we get
(1) ⇒ ........(3)
Now, subtract equation (3) from equation (2) , we get
Thus, number of clarinets musical store sold was 15.8 but since clarinets are to be in whole number rounding off to the nearest integer 16.
and put y = 16 in (1) , we get
Thus, number of trumpets musical store sold was 11.
Answer:
Step-by-step explanation:
The constant of proportionality is given as .
Notice that when it follows that
.
Substitute and
into the formula for the constant:
.
Therefore, the constant is equal to 2.