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Anika [276]
4 years ago
12

"Find the point of intersection for each system of linear equations. Which method did you use & why?"

Mathematics
1 answer:
lisabon 2012 [21]4 years ago
8 0
Set each equation to get Y by its self
Then set the equations equal to each other and solve for X
Easy(:
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WILL GIVE BRAINLIEST<br>What is the value of a in the problem 4a-3=D<br>explain answer
mixas84 [53]
In this case, you aren't going to get an integer for the value of a, but you can rearrange the equation to equal a.

4a-3=D       add 3 to both sides
4a=D+3      divide both sides by 4
a=(D+3)/4   here's your answer
4 0
3 years ago
16 The perimeter of the pentagon is equal to the perimeter of the square.
STatiana [176]

7x+2

Step-by-step explanation:

add all the sides of the pentagon and make it equal to the perimeter of the square which is 4y

sides of the pentagon are

5x+3

2x+3

7x+4

9x-10

5x+8

28x+8=4y

7x+2 = y

7x+2 = answer

gathmath

gathmathier6961

another way :

in a standardized test you may want to use real numbers

make x equal a prime number like 3

so then the sides are

18

9

25

17

23

=

92

then divide by 4

23

then divide by 3

which is 7 remainder of 2

which is

7x+2

8 0
2 years ago
Find the z-score such that the area under the standard normal curve to the left is 0.79.
Varvara68 [4.7K]

Answer:

1

Step-by-step explanation:

hope this helps

8 0
3 years ago
You deposit $2200 into three separate bank accounts that each pay 3% annual interest. How much interest does each account earn a
Keith_Richards [23]
This can be solve using the formula:
F = P ( 1 + i)^n
where F is the money after n years
P is the initial amount of money
i is the annual interest rate
n is the time in years
since you deposit in 3 accounts P = 2200/3
F = ( 2200 / 3) ( 1 + 0.03)^6
F = $ 875.64 is the money each account earned after 6 years
7 0
3 years ago
What is the percent of change to 125 centimeteres 87.5 centimeters?
MrRa [10]
I hope this helps you

125-87,5=37,5

125 37,5

100 ?

?.125=100.37,5

?=3750/125

?=30


30%
5 0
3 years ago
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