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4 years ago

I need help with this question i will need full working out could u help?

Mathematics

1 answer:

lilavasa [31]4 years ago

5 0

Answer:

Total charge= $\pounds 23.40$

Step-by-step explanation:

The basic plan of Jo's mobile phone costs $\pounds 16$ which includes

150 free minutes and 13p for each additional minute

150 free texts and 15p for each text

Since Jo made 170 minutes of calls, she exceeded the free minutes and had to pay

170 - 150 = 20 additional minutes, worth 13*20/100= $\pounds 2.60$

She also sent 182 texts, 182 - 150 = 32 in excess, worth $\pounds 15*32/100 = \pounds 4.80$

So the total charge for the month was $\pounds 16 + \pounds 2.60 + \pounds 4.80 = \pounds 23.40$

Total charge= $\pounds 23.40$

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A beaded necklace is 2.5 feet long. Each bead is .25 inches wide & each pair of beads is separated by 1.25 inches of chain.

adelina 88 [10]

Answer:

There are 20 beads on the necklace.

Step-by-step explanation:

Given:

A beaded necklace is 2.5 feet long. Each bead is .25 inches wide & each pair of beads is separated by 1.25 inches of chain.

Now, to find the number of beads on the necklace.

The length of necklace = 2.5 feet.

So, we convert feet into inches by using conversion factor:

1 foot = 12 inches.

2.5 feet = 12 × 2.5 inches.

2.5 feet = 30 inches.

Thus, the length of necklace is 30 inches.

Let the number of beads be $x.$

The width of each bead = 0.25 inches.

The each pair of beads is separated by 1.25 inches.

Now, we put an equation to get the number of beads:

$(0.25+1.25)x=30$

$0.25x+1.25x=30$

$1.50x=30$

Dividing both sides by 1.50 we get:

$x=20.$

The number of beads = 20.

Therefore, there are 20 beads on the necklace.

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