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skelet666 [1.2K]
3 years ago
10

16 17 18 number plz answer righg

Mathematics
1 answer:
marta [7]3 years ago
7 0
What does this even mean
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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

2040-0.04y+0.07y=2370

0.03y=330

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.

3 0
3 years ago
A negative integer is greater than its opposite always true never true or sometimes true
babymother [125]

Answer:

False

Step-by-step explanation:

The bigger the negative number the less it is, so -11 is less than 11. -33 is less than 33.

8 0
2 years ago
Read 2 more answers
3^2 is an example of
mr_godi [17]

Answer:

B. A numerical expression

3 0
3 years ago
What is the value of f(7)
Lelu [443]

Answer:

7<em><u>f</u></em>

Step-by-step explanation:

You move 7 to the left of <em>f. </em>

This makes the exact value of <em>f</em>(7),  7<em>f</em>.

8 0
3 years ago
The edge of a cube was found to be 15 cm with a possible error in measurement of 0.1 cm. Use differentials to estimate the maxim
Artyom0805 [142]

Answer: wait up getting your answers

Step-by-step explanation:

3 0
3 years ago
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