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expeople1 [14]
3 years ago
13

Briana buys a reel of thread for sewing. Th ere are 10 m of thread on the real. Her brother in grade 4 used 210 cm. How much is

left on the reel in centimeters?
Mathematics
1 answer:
miv72 [106K]3 years ago
3 0

Answer:

790cm

Step-by-step explanation:

Briana buys a reel of thread for sewing. There are 10 m of thread on the real. Her brother in grade 4 used 210 cm. How much is left on the reel in centimeters?

1m = 100cm

10m = x

x = 10 × 100cm

x = 1000cm

The total number of thread on the reel = 1000cm

The amount of thread left on the reel is calculated as:

The total number of thread on the reel - The amount of thread on the reel that was used.

= 1000cm - 210cm

= 790cm

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alexgriva [62]

Answer: 3(x minus 5.50) = 111.75; the monthly Internet service is $42.75

Step-by-step explanation:

Given the following :

Total amount spent on internet for 3 months = $111.75

Monthly credit received on bill = $5.50

Monthly Credit of $5.50 means $5.50 is deducted from the amount being paid on thir bill monthly.

Assume their monthly internet service fee = x

The amount paid before the credit deduction each month:

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(x - $5.50)

For 3 months :

3 × (x - $5.50) = $117.75

3(x - $5.50) = $117.75

Monthly fee paid before credit deduction:

3(x - $5.50) = $117.75

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3x = $128.25

x = $128.25 / 3

x = $42.75

4 0
3 years ago
Solve the following systems of equations.<br> y = -x2+2x+1<br> y = 2x+1
boyakko [2]

Answer:

I think it's (0,1) x=0, y=1

Sorry if that's wrong

7 0
3 years ago
Aviation:
kolezko [41]

Change in altitude:

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3 years ago
Given the sequence 4, 8, 16, 32, 64, ..., find the explicit formula.
Goshia [24]

Answer:

\sf 2^{(n+1)}

Step-by-step explanation:

Explicit formula is used to represent all the terms of the geometric sequence using a single formula.

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Here, a is the first term.

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4 0
2 years ago
QT 1.
erma4kov [3.2K]
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