Answer:
r=3,r=25/27,r=3
Step-by-step explanation:
In equation y=rx
make r the subject of the formula by dividing both sides by x
r=y/x
1). when y=15 and x=5
r=15/5
r=3
2). when y=25 and x=81/3
r=25/81/3
r=25÷81/3
r=25*3/81
r=75/27
r=25/27
3). when y=33 and x=11
r=33/11
r=3
The attached picture contains the formula for the area of a triangle. It applies to all triangles.
B is the answer because grocery stores are usually made up by someone else or by a company so they make their own profit and income
Given, Bodhi has a collection of 175 dimes and nickel. If she has n numbers of nickel. Then,
The number of dimes coin= 175-n.
The collection is worth $13.30.
1 nickel is worth five cents. So, n nickel will worth 0.05n.
Similarly 1 dime is worth 10 cents. So, 175-n dimes will worth 0.1(175-n).
Since the total worth is $13.30. So, we can set the equation as follows:
0.1(175-n)+0.05n=13.13.
Hence, the last option is the correct choice.
Answer:
3x - 7y = 9
Step-by-step explanation:
3x - 9 = 7y
Add 9 to both sides.
3x = 7y + 9
Now subtract 7y from both sides.
3x - 7y = 9 (answer).
