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3 years ago

16

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

4 0

Answer:Neil is not correct

Step-by-step explanation:

Let us calculate the total cost of the of the apps and headphone without estimation.

He wants to buy 5 apps priced at $0.99 each

Total cost of the 5 apps will be

5 × 0.99 = $4.95

He also wants to buy headphones priced at $15.49.

Since this includes shipping and tax. The total cost the 5 apps and headphone is 4.95 + 15.49 = $20.44

Neil only has a $20 gift certificate for an online store. This is actually lesser than the total cost of the items.

So Neil is wrong

Even if he estimated by rounding up, the most reasonable estimate would be

$1 per app and the 5 apps will cost $5

The headphone will be $15.5

The total would be 5+ 15.5 = $20.5.

This is still more than his gift certificate

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3 years ago

Kindly Answer This And Don't Waste My PTS! ☁️

GalinKa [24]

====================================

$\large \sf \underline{Problems:}$

PROBLEM NUMBER 1: Solve 5x+2=22
PROBLEM NUMBER 2: Solve 2x+5=12
PROBLEM NUMBER 3: Solve 2x-5=7

====================================

$\large \sf \underline{Answers:}$

$\large \qquad \qquad \bold{ \#1. \: x \: = \: 4}$

$\large \qquad \qquad \bold{ \#2. \: x \: = \: \frac{7}{2} }$

$\large \qquad \qquad \bold{ \#3. \: x \: = \: 6}$

====================================

$\large \sf \underline{Solutions:}$

<h3>Problem Number 1:-</h3>

$\large\rm{5x \: + \: 2 \: = \: 22}$

$\large\rm{5x \: = \: 22 \: - \: 2}$

$\large\rm{5x \: = \: 20}$

$\large\rm{x \: = \: \frac{20}{5} }$

$\large\rm\green{x \: = \: 4}$

$\therefore$ The answer of you're problem is x = 4.

====================================

<h3>Problem Number 2:-</h3>

$\large\rm{2x \: + \: 5 \: = \: 12}$

$\large\rm{2x \: = \: 12 \: - \: 5}$

$\large\rm{2x \: = \: 7}$

$\large\rm\green{x \: = \: \frac{7}{2} }$

$\therefore$ The answer of you're problem is 7/2.

====================================

<h3>Problem Number 3:-</h3>

$\large\rm{2x \: - \: 5 \: = \: 7}$

$\large\rm{2x \: = \: 7 \: + \: 5}$

$\large\rm{2x \: = \: 12}$

$\large\rm{x \: = \: \frac{12}{2} }$

$\large\rm\green{x \: = \: 6}$

$\therefore$ The answer of you're problem is x = 6.

====================================

Hope this helps!

4 0

2 years ago