3 years ago

Lainey bought a set of 20 markers for $6 what is the cost of one market

1 answer:

7 0

since you know Lainey has 20 markers and the total cost is $6, all you have to do is solve 20/6 to find the cost of each marker. So, the answer would be about $2.33 dollars, since 20/6 would equal $2.333333333... and I just rounded it up. Hope I helped you! Good luck (:

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Katt and sanjeev are collecting money for charity. For every £2 that kat collects, sanjeev collects £3. They collect £255 in tot

il63 [147K]

Answer: Kate = £102

Sanjeev = £153

Step-by-step explanation:

From the question, we are informed that for every £2 that kat collects, sanjeev collects £3. This csn be represented in a fraction as:

Kat = 2/5

Sanjeev = 3/5

The amount that each collects will be:

Kat = 2/5 × £255

= 2 × £51

= £102

Sanjeev = 3/5 × £255

= 3 × £51

= £153

6 0

3 years ago

To increase or decrease an amount by 30% what single multiplier would you use?

Nataly_w [17]

100%-30%=70%
100%+30%=130%

to decrese by 30%, multiply by 70%
to increase by 30%, multiply by 130%

5 0

3 years ago

Read 2 more answers

These questions both go together if you answer them I'll give you brainliest !! :)

lina2011 [118]

Answer: the answer is 2.5

Step-by-step explanation:

I just did that

8 0

3 years ago

Estimate 12.59 _ 7.68 to the nearest whole number

slega [8]

Answer:

13_8

Step-by-step explanation:

if the first number in the decimal is 5 or up then you round up if its 4 or less you round down meaning it would be 13 and 8

8 0

3 years ago

The average commute times for employees of a large company is 32 minutes. The commute time of 10employees are 40, 31, 32, 16, 25

Ira Lisetskai [31]

Given:

40,31,32,16,25,35,22,53,23 and 33.

Sample mean:

$\bar{x}=32$

Population mean:

$\mu=\frac{\Sigma(x_i)}{n}_{}$ $\mu=\frac{40+31+32+16+25+35+22+53+23+33}{10}$ $\mu=\frac{310}{10}$ $\mu=31$

$\sigma=\sqrt[]{\frac{\Sigma(x-\mu)^2}{n-1}}$ $\sigma=\sqrt[]{\frac{81+0+1+225+36+16+81+484+64+4}{10-1}}$ $\sigma=\sqrt[]{\frac{992}{9}}$ $\sigma=\frac{\sqrt[]{992}}{3}$ $\sigma=10.4987$ $\text{Error}=\pm z\times\frac{\sigma}{\sqrt[]{n}}$

z value is not given so taken as 95% on confidence level

$z=1.96$ $\text{Error}=\pm1.96\times\frac{10.4987}{\sqrt[]{10}}$ $\text{Error}=\pm6.5072$ $\text{Error}=\pm6.5$

4 0

1 year ago