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2 years ago

Solve the equation pleasse someone please help will give brainliest pleeeasse

Mathematics

1 answer:

NISA [10]2 years ago

7 0

Answer:

45 it is 45 45 um yea I ben did thiss

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Phyllis invested 50000 dollars, a portion earning a simple interest rate of 5 percent per year and the rest earning a rate of 7

Elodia [21]

Answer:

The amount invested at 5% was $39,000 and the amount invested at 7% was $11,000

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

Let

x-----> the amount invested at 5%

50,000-x -----> the amount invested at 7%

$t=1\ year\\ I=\$2,720\\r_1=0.05\\r_2=0.07\\P_1=\$x\\P_2=\$(50,000-x)$

substitute in the formula above

$2,720=x(0.05*1)+(50,000-x)(0.07*1)$

solve for x

$2,720=0.05x+3,500-0.07x$

$0.07x-0.05x=3,500-2,720\\0.02x=780\\x=\$39,000$

$(50,000-x)=\$11,000$

therefore

The amount invested at 5% was $39,000 and the amount invested at 7% was $11,000

5 0

3 years ago

Increase 14187.13 by 14.5

katrin2010 [14]

Answer:

14201.63

Step-by-step explanation:

14187.63

+ 14.50

=14201.63

7 0

3 years ago

What is an equation for the line with slope 2/3 and 7-intercept 9? 30 points to whoever answers this correctly and gets brainlie

Annette [7]

The equation of the line is y = $\frac{2}{3}$ x + 9

Step-by-step explanation:

The equation of a line in slope-intercept form is y = m x + b, where

m is the slope of the line
b is the y-intercept ⇒ the value of y when x = 0

∵ The line has a slope $\frac{2}{3}$

∴ m = $\frac{2}{3}$

∵ The y-intercept is 9

∴ b = 9

- Substitute the values of m and b in the form of the equation below

∵ y = m x + b

∴ y = $\frac{2}{3}$ x + 9

The equation of the line is y = $\frac{2}{3}$ x + 9

Learn more:

You can learn more about the linear equations in brainly.com/question/12941985

#LearnwithBrainly

4 0

4 years ago

What value of p makes the equation true?<br> -3p+1/8=-1/4<br> P= ____

Dmitriy789 [7]

Answer:

1/8

Step-by-step explanation:

-3p+1/8=-1/4

subtract 1/8

-3p=-3/8

divide by -3

p=1/8

8 0

3 years ago

Determine whether quantities vary directly or inversely and find the constant of variation.

tatyana61 [14]

2,025 because 5 is 1/9 of 45 so you multiply 225 by 9

7 0

3 years ago

Read 2 more answers

Solve the equation pleasse someone please help will give brainliest pleeeasse ​

Solve the equation pleasse someone please help will give brainliest pleeeasse