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3 years ago

Subtract 5 from 1/3 of 23

Mathematics

2 answers:

WARRIOR [948]3 years ago

5 0

The answer is 2.8. or around there

Nataly_w [17]3 years ago

4 0

It is 2.6 repeating

i need more characters to answer

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Mr.Driscoll has 9 reports to grade.There are 6 pages for each report.He grades 12 pages.How many pages does he still have to gra

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42 pages left to grade and 7 reports left

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3 years ago

Three-Fourths of the student body attended the pep-rally. If there were 1230 students at the pep rally, how many students are th

tankabanditka [31]

3/4 of the total students = 1230...

3/4x = 1230
x = 1230 * 4/3
x = 4920/3
x = 1640 <=== total students

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2 years ago

4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

3 years ago

The cost to print digital photos at a local store is

snow_tiger [21]

<h2>The cost is same for both the options if we purchase 27 photos</h2>

Step-by-step explanation:

Cost of a photo at a local store is $0.25 per photo. This cost can be modeled to be linear in number of photos as $C_{1}(x)=0.25x$ .

Cost of photos purchased online is $0.15 per photo. However there is a shipping cost of $2.70. This can also be modeled to be linear in number of photos as $C_{2}(x)=2.70+0.15x$ .

Let us assume both costs are the same if we purchase $n$ photos.

So, $C_{1}(n)=C_{2}(n)$

$0.25n=2.70+0.15n$

$0.10n=2.70$

$n=27$

∴ On purchasing 27 photos, cost for both the options is the same.

5 0

3 years ago

Read 2 more answers

Scientists are monitoring the pH of oceans. Which of these are they most likely studying?

Natali5045456 [20]

Answer:

Step-by-step explanation:

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3 years ago