Mathematics, 29.12.2019 07:31 cthompson1107

Work out the missing area in each pair of similar shapes (this is due for tomoz me: ( )

Answers: 3

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So in the first shape (yellow one) it seems to be scaling up, meaning it is bigger than before. It goes from 4cm to 16cm. You have to find the number you need to multiply 4cm by to get to 16cm. 4cm times = 16cm. I usually do a guess and check strategy, after a few numbers, 4 x 4 = 16. Now you to multiply 8cm^2 (which is the area of the first shape) by 4.

After this, you get 32cm^2. That is the answer for the first one. Fill in "32" in the blank.

Now for the second one it seems to be the same type of problem, but instead of scaling up its scaling DOWN. The opposite of multiplying is dividing, so for this one you have to find out what to divide by. 24cm divided by ___ = 8cm. I found the answer to be 3cm after testing multiple numbers. Now you divide 270cm^2 by 3.

After this, you get 90cm^2 as the answer. This is the answer for the second green shape. Fill in "90" in the blank.

Answer from: Quest

$5.25t + 2 = 16.5t + 11$
Can someone explain how to do this plz?

Answer from: Quest

answer:

payment just for service

→

87.12

payment for service including tax

→

94.09

explanation:

service only with 20% tip

→

72.6

(

100

)

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the

service

−−−−−−

so technically the answer is

→

72.6

(

100

)

87.12

however, the intention of the question provider may have been that your answer is to be

87.12

(

100

)

94.09

to 2 decimal places.

payment just for service

→

87.12

payment for service including tax

→

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge

→

72.60

20% tip

100

72.60

14.52

−−−−−−

←

add

87.12

tax

100

87.12

6.97

−−−−−

←

add

94.09

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Work out the missing area in each pair of similar shapes (this is due for tomoz me: ( )
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