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kap26 [50]
3 years ago
15

Please help me and explain it please questions 28

Mathematics
2 answers:
blagie [28]3 years ago
8 0

Answer:

.25*x +.10*y +.05*z

We have 1.35  which is the value of our coins.

Step-by-step explanation:

We need to multiply how much each coin is worth  by the number of each type of coin we have.

If we have x quarters then we multiply x by .25 and we have y dime then we multiply y by .10 and we have z nickels then we multiply z by .05.  To find out how much money we have, we add it all up

Our equations becomes

.25*x +.10*y +.05*z

We have x=3 or 3 quarters, y = 5 or 5 dimes and z=2 or 2 nickels

.25(3) + .10 (5) +.05(2)

.75+.50+.10

1.35

We have 1.35

klasskru [66]3 years ago
5 0

Answer:

$1.35

Step-by-step explanation:

x: quarter=$0.25

y: dime=$0.10

z: nickel=$0.05

so total amount of changes

= (0.25*x)+(0.10*y)+(0.05*z)

x=3, y=5, z=2

substituting into the eqn

total = (0.25*3)+(0.10*5)+(0.05*2)

= 0.75 + 0.5 + 0.1

= $1.35


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Answer:

a.Z(-2,1)

b.Z(1,1)

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Step-by-step explanation:

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Imagine this point on a graph.

Translate it down two units :

the x stays -2, by going down the y decreases 2 so 3-2=1

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The y doesn't change this time the x increases 3 since we're moving to the right.

Z(1,1)

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Answer:

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