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butalik [34]
3 years ago
8

You want to cook some desserts for your 10 friends within 2 hours. It will take you 15 minutes to make a waffle and 5 minutes to

make a chocolate cookie. Write a system of inequalities to express this situation. What is the most possible number of waffles you can make and still meet the requirements ? waffles
Mathematics
1 answer:
nadya68 [22]3 years ago
8 0

Answer: 7 waffles

Step-by-step explanation: trust me pls. you have a total of 120 minutes. 7 waffles takes you 105 minutes, and the remaining 15 minutes can be spent on 3 cookies.

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find how long it will take for an investment sum of $40000 to generate simple interest of $8000 at 5% per annum​
guapka [62]

Answer:

It will take 4 years

Step-by-step explanation:

The formula of the simple interest is <em>I = Prt</em>, where

  • <em>P</em> is the investment
  • <em>r</em> is the annual rate in decimal
  • <em>t</em> is the time

∵ The investment is $40000

∴ <em>P</em> = 40000

∵ The simple interest is $8000

∴ <em>I </em>= 8000

∵ The rate of interest is 5%

∴ r = 5%

→ Change it to decimal by divide it by 100

∴ <em>r</em> = 5 ÷ 100 = 0.05

→ Substitute them in the formula above

∵ 8000 = 40000 × 0.05 × t

∴ 8000 = 2000t

→ Divide both sides by 2000

∴ 4 = t

∵ t is the time of investment

∴ It will take 4 years

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3 years ago
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5 0
3 years ago
Read 2 more answers
Find the zeros for this polynomial function.
wlad13 [49]

well this is what the graph would look like i don't know how to help you with the first part sorry

6 0
3 years ago
A worker's salary is increased by 12%. If the worker's original salary is represented by s, which two expressions represent the
andreyandreev [35.5K]

Step-by-step explanation:

Given that

A worker's salary is increased by 12%.

Let the worker's original salary is represented by s. It means, the new salary of the person is given by :

New salary = 12% of s

So,

N=\dfrac{12}{100}\times s\\\\=0.12s

Hence, this is the required solution.

7 0
3 years ago
Which of the following is the solution to the compound inequality below
Vaselesa [24]

So starting with the first inequality:


Firstly, subtract 1/5 on each side. \frac{3}{2}x \geq -\frac{6}{5}


Next, multiply each side by 2/3, and your answer should be:

x \geq -\frac{12}{15}\\\\ x \geq-\frac{4}{5}



Second inequality:


Firstly, add 7/3 on each side -\frac{1}{2} x\geq \frac{22}{3}


Next, multiply by -2 on each side, and flip the less than or equal to sign because you are multiplying by a negative. Your answer will be x\leq -\frac{44}{3}


In short, the correct option is the first option.

8 0
3 years ago
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