Achange jar contains nickels, dimes and quarters. the total amount of money in the jar is $1.90. the amount of nickels is one more than twice the number of dimes. the number of quarters is one half the total number of nickels and dimes. find the number of each coin in the change jar.

Number of dimes = 3

Number of nickels = 7

Number of quarters = 5

Step-by-step explanation:

Let x be the number of dimes in the jar.

The amount of nickels is one more than twice the number of dimes, then the amount of nickels is

The number of quarters is one half the total number of nickels and dimes, so the number of quarters is

Fill in the table

Thus, the total sum in cents is

The total amount of money in the jar is $1.90 that is 190 cents. So,

Number of dimes = 3

Number of nickels = 7

Number of quarters = 5

Check the total amount of money in the jar:

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

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pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.