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Ludmilka [50]
1 year ago
11

A pool cleaning company determines their

Mathematics
1 answer:
Korolek [52]1 year ago
4 0

Answer:

$ 12 346.40

Step-by-step explanation:

Simply put  '46 ' in where ' x ' is and solve :

P = 6.4 (46^2) - 26 ( 46) = $12 346.40

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Do 3/7 and 7/3 represent the same length on s number line? Explain please
Nitella [24]
No because if you were to make 7/3 a mixed fraction, it would be 2 and 1/3. Thus, they are different lengths on the number line
6 0
3 years ago
A picture has an area of 35cm and is 7cm long.An enlargement of the picture is made which is 21cm long.Find the area of the enla
Andrej [43]

Answer:

315 cm²

Step-by-step explanation:

Given the scale factor of 2 similar figures is a : b , then

ratio of areas = a² : b²

Here the scale factor = 7 : 21 = 1 : 3 , thus

ratio of areas = 1² : 3² = 1 : 9

That is the area of the enlargement is 9 times the original, so

area of enlargement = 35 × 9 = 315 cm²

5 0
3 years ago
Read 2 more answers
Isolating variables abx=cy the variable is x. [please show me how)
Arada [10]
Abx = cy

We want to get rid of 'ab', and it is being multiplied to 'x', so we divide it to both sides.

x = (cy)/(ab)
5 0
3 years ago
Read 2 more answers
Barbara buys 3 boxes of eggs costing £1.20 each 1 jar of mayonnaise costing £1.80 2 loaves of breadshe pays £10 note and gets £1
Serjik [45]

The cost of a box of eggs = $1.20

So, the cost of 3 boxes of eggs = 3 \times $1.20 = $3.6

The cost of each jar of mayonnaise = $1.80

Let the cost of each loaf of bread = $'x'

So, the cost of 2 loaves of bread = 2 \times x = $2x

Since, Barbara gives $10 note and receives a change of $1.60.

Therefore, she pays 10 - 1.60 = $8.4 for the given items.

Therefore, 3.6+1.8+2x = 8.4

5.4+2x = 8.4

2x = 8.4-5.4

2x = 3.0

So, x = 1.5

Therefore, the cost of each loaf of bread is $1.50 not $1.40.

3 0
3 years ago
Amanda wants to host a party. She invites 3 friends and tells them to invite 3 of their friends. The 3 friends do invite 3 other
Illusion [34]

Answer:

45 people

Step-by-step explanation:

person#1 3x5=15

person#2 3x5=15

person#3 3x5=15

then you do 15x3=45

5 0
3 years ago
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