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Natalka [10]
2 years ago
9

In a​ company, ​55% of the workers are men . If 1800 people work for the company who​ aren't men ​, how many workers are there i

n​ all? Use pencil and paper. Show two different ways that you can solve this problem.
Mathematics
1 answer:
madreJ [45]2 years ago
3 0

Answer:

4000 people id.k any other method

Step-by-step explanation:

55% = men

100-55=45

45% = 1800 (not men)

divide both by 45

1% = 40

times both by 55

55% = 2200 men

2200 + 1800 = 4000

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Phyllis invested 51000 dollars, a portion earning a simple interest rate of 4 percent per year and the rest earning a rate of 7
Liono4ka [1.6K]

Answer:

Phyllis invested $11,000 at a simple interest rate of 7 percent per year and $40,000 at a simple interest rate of 4 percent per year.

Step-by-step explanation:

From the information provided, you can write the following equations:

x+y=51000 (1)

0.04x+0.07y=2370 (2), where

x is the portion earning a simple interest rate of 4 percent per year

y is the portion earning a simple interest rate of 7 percent per year

First, you can isolate x in (1):

x=51000-y (3)

Now, you can replace (3) in (2) and solve for y:

0.04(51000-y)+0.07y=2370

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y=330/0.03

y=11000

Then, you can replace the value of y in (3) to find the value of x:

x=51000-11000

x=40000

According to this, the answer is that Phyllis invested $11,000 at a simple interest rate of 7 percent per year and $40,000 at a simple interest rate of 4 percent per year.

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