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3 years ago

Please help, our teacher wasn’t here and we got no explanation on how to do it

Mathematics

2 answers:

nasty-shy [4]3 years ago

8 0

Help with what? there isn’t anything there

Assoli18 [71]3 years ago

5 0

Is there a question or you need an explanation on something? :)

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If the relative frequency of getting a 'red' on a spinner is 0.4, how many reds would you expect to get in 300 spins?

Shkiper50 [21]

You could expect to land on red 120 times because 300*.4=120

6 0

3 years ago

Read 2 more answers

Write an expression to show the sum of fourteen and triple eight.

katrin [286]

14x8³

have a good day!! :)
hope this helps!!! :D
plz give brainliest!! XD

8 0

3 years ago

A regular tube of toothpaste costs $2.50 for 3.2 ounces. A travel size tube costs $1.00 for 1.2 ounces. Compare the prices and w

Len [333]

Answer:

The travel size costs 6 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

Step-by-step explanation:

step 1

Find out the unit rate of a regular tube of toothpaste

we know that

To find out the unit rate, divide the total cost by the total weight

$\frac{2.50}{3.2}=\$0.78\ per\ ounce$

step 2

Find out the unit rate of a travel size tube of toothpaste

we know that

To find out the unit rate, divide the total cost by the total weight

$\frac{1.00}{1.2}=\$0.83\ per\ ounce$

step 3

Find out the percent of increase

we have that

The unit rate $\$0.83\ per\ ounce$ represent the 100%

so by proportion

Find out what percentage represent the difference ($0.83-$0.78=$0.05 per ounce)

$\frac{0.83}{100\%}=\frac{0.05}{x}\\\\x=100(0.05)/0.83\\\\x=6\%$

therefore

The travel size costs 6 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

6 0

3 years ago

Calculate the markup on an item that cost a store $300.00 and will be marked up 55%

Anni [7]

Answer:

It would be $465 marked up.

Step-by-step explanation:

55% of 300 is 165.

So marked up its 465 and marked down its 135.

3 0

3 years ago

Read 2 more answers

Simplify the radical expression. Show all your steps. √363 - 3√27

siniylev [52]

Answer:

2 sqrt(3)

Step-by-step explanation:

Simplify the following:

sqrt(363) - 3 sqrt(27)

sqrt(27) = sqrt(3^3) = 3 sqrt(3):

sqrt(363) - 33 sqrt(3)

sqrt(363) = sqrt(3×11^2) = 11 sqrt(3):

11 sqrt(3) - 3×3 sqrt(3)

-3×3 = -9:

11 sqrt(3) + -9 sqrt(3)

11 sqrt(3) - 9 sqrt(3) = 2 sqrt(3):

Answer: 2 sqrt(3)

3 0

3 years ago