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3 years ago

Can you help me on this mathswatch question?

Mathematics

2 answers:

Anna007 [38]3 years ago

4 0

Where is the Question? or am i just blind

anzhelika [568]3 years ago

3 0

Answer:

Yes, they will save enough money to cover all their campaign site charges.

Step-by-step explanation:

Consider the provided information.

Each plan to save £13 for 9 weeks.

So each save = £13×9 = £117

That means the total saving of Lila and Wassim is: £117×2 = £234

It is given that there is a special offer for every 5 night stay they need to pay only for 4 night.

That means for 10 night stay they need to pay for 8 night.

Charge per person is £6 per night.

For 2 person they need to pay £6×2 = £12

If 2 person stay for 10 night they need to pay:

£12×8 = £96 (∴ We use 8 instead of 10 because For 10 night stay they need to pay for 8 night stay)

They need to pay £96 for 10 day stay.

They want a rectangular base tent measuring 2.3 by 4.2 meters

The area of tent is: 2.3 × 4.2 = 9.66 m²

It is given that if the area of tent is less than or equal to 10 m² then they need to pay £15 per night.

9.66 m² < 10 m², Thus they needs to pay £15 for tent per night.

The tent charge for 10 night is:

£15×8 = £120 (∴ We use 8 instead of 10 because For 10 night stay they need to pay for 8 night stay)

Therefore, the tent charge for 10 night is £120.

The total money they need to pay is:

£96+£120=£216

As we know they can save £234 which is greater that £216.

Hence, they will save enough money to cover all their campaign site charges.

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a bag contains 6 red 4 blue and 8 green marbles how many of each color should be added so that the total number of marbles is 27

PSYCHO15rus [73]

You would need to add 3 marbles to each group.

4 0

4 years ago

9 packages of grape cost $24 how many packages of grapes can you buy for $8

Leto [7]

Ok. First you have to find the unit rate. Since you can buy 9 packages of grapes for $24, then you can get 1 grape package for $2.6667. If you have $8, you can buy 3 packages of grapes.

8 0

4 years ago

Read 2 more answers

Find the substance's half-life, in days. Round your answer to the nearest tenth.

shutvik [7]

Answer:

t = 5.6 day

t =5 days 14 hours 24 minutes

Step-by-step explanation:

Half life is the time it will take for the original value or quantity I'd a particular substance to decrease by half of it's original self.

N = N•e(-kt)

N• = 25

K = 0.1229

Then

N = 25/2 = 12.5

The reason because at the half life , it's original value will decrease to half.

Let's solve for the half life t

N = N•e(-kt)

12.5 = 25e(-0.1229t)

12.5/25 = e(-0.1229t)

0.5 = e(-0.1229t)

In 0.5 =-0.1229t

-0.69314 = -0.1229t

-0.69314/-0.1229 = t

5.6399 = t

To the nearest tenth

5.6 days = t

4 0

4 years ago

Given $m\geq 2$, denote by $b^{-1}$ the inverse of $b\pmod{m}$. That is, $b^{-1}$ is the residue for which $bb^{-1}\equiv 1\pmod

goblinko [34]

$(2+3)^{-1}\equiv5^{-1}\pmod7$ is the number L such that

$5L\equiv1\pmod7$

Consider the first 7 multiples of 5:

5, 10, 15, 20, 25, 30, 35

Taken mod 7, these are equivalent to

5, 3, 1, 6, 4, 2, 0

This tells us that 3 is the inverse of 5 mod 7, so L = 3.

Similarly, compute the inverses modulo 7 of 2 and 3:

$2a\equiv1\pmod7\implies a\equiv4\pmod7$

since 2*4 = 8, whose residue is 1 mod 7;

$3b\equiv1\pmod7\implies b\equiv5\pmod7$

which we got for free by finding the inverse of 5 earlier. So

$2^{-1}+3^{-1}\equiv4+5\equiv9\equiv2\pmod7$

and so R = 2.

Then L - R = 1.

6 0

3 years ago

What the power a when 5^a = 1/125

Advocard [28]

Answer:

a = -3

General Formulas and Concepts:

Algebra I

Solving Exponential Equations

Exponential Property [Rewrite]: $\displaystyle b^{-m} = \frac{1}{b^m}$

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle 5^a = \frac{1}{125}$

Step 2: Solve for a

Rewrite: $\displaystyle 5^a = \frac{1}{5^3}$
Rewrite [Exponential Property - Rewrite]: $\displaystyle 5^a = 5^{-3}$
Set: $\displaystyle a = -3$

3 0

2 years ago