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3 years ago

Irene buys a talking doll for $10.66 and

Mathematics

2 answers:

Basile [38]3 years ago

7 0

Answer:

$5.10

Step-by-step explanation:

Irene pays with a $20 bill

Subtract all other values from $20

$20 - $10.66 - $4.22

$5.12

Round to the nearest dime, which is every $0.10

2 rounds down, so the final answer is $5.10

Hope this helps :)

jok3333 [9.3K]3 years ago

3 0

Answer:

$ 5.10

Step-by-step explanation:

10.66 would turn into 10.70

4.22 would trun into 4.20

10.70 plus 4.20 = 14.90

20 minus 14.90 = 5.10

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BaLLatris [955]

For this case, what we must do is find the distance between each ordered pair.
For this, we use the formula of distance between points.
We have then:
$d = \sqrt{(x2-x1)^2+(y2-y1)^2}$

For (0, 0) and (0, 7):
$d1=\sqrt{(0-0)^2+(7-0)^2}$
$d1=\sqrt{(0)^2+(7)^2}$
$d1=\sqrt{0+49}$
$d1=\sqrt{49}$
$d1=7$

For (0, 7) and (5, 7):
$d2=\sqrt{(5-0)^2+(7-7)^2}$
$d2=\sqrt{(5)^2+(0)^2}$
$d2=\sqrt{25+0}$
$d2=\sqrt{25}$
$d2=5$

For (5, 7) and (5, 0):
$d3=\sqrt{(5-5)^2+(7-0)^2}$
$d3=\sqrt{(0)^2+(7)^2}$
$d3=\sqrt{0+49}$
$d3=\sqrt{49}$
$d3=7$

before returning home the total distance is:
$d1 + d2 + d3 = 7 + 5 + 7

d1 + d2 + d3 = 19$

Answer:
before returning home Tommy walks about 19 blocks

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3 years ago

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Combine like terms:

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If you want, you can factor out the common 5:

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