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Contact [7]
3 years ago
14

The sum of two numbers is 13 and there difference is 5 what are the 2 numbers?

Mathematics
2 answers:
melamori03 [73]3 years ago
8 0
X+y=13
x-y=5
we can addd these 2 equations to eliminate y

2x+0y=18
2x=18
divide both sides by 2
x=9

sub back
x+y=13
9+y=13
minus 9 both sides
y=4

the 2 numbers are 9 and 4
Zielflug [23.3K]3 years ago
4 0
X + y = 13
x - y = 5

x = (13 - y)

(13-y) - y = 5

13 - 2y = 5
-2y = -8
y = 4

x - 4 = 5
x = 9

x=9, y = 4
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Jacqueline practiced drums four times last week for sessions of 40 minutes, 35 minutes, 45 minutes, and 30 minutes. Cassie pract
Vedmedyk [2.9K]
What are the statement options? If I had to guess it would be Jacqueline practiced 150 minutes all week and Cassie practiced 110 minutes so Jacqueline practiced more minutes in fewer sessions than Cassie.
7 0
3 years ago
you take out a mortgage for 350,000$ at 4% compounded monthly your payment is 1671$ write a recursive formula
Ymorist [56]

Answer:

Not sure if this is right but it might be something like

350,000-4%+1671m

or

3500,000-4%y/1671m

Step-by-step explanation:

The numbers we know are 350,000 4% and 1671 per month

350,000 is the full mortgage

4% is the APR or annual percentage rate like interest

and we know the monthly for the mortgage is 1671 per month

4 0
2 years ago
Through:(2,2), parallel to y=x+4
Bumek [7]

Answer:

y = x

Step-by-step explanation:

Slope: m = 1

y = x + c

2 = 2 + c

c = 0

y = x

4 0
3 years ago
Read 2 more answers
Check my answer please
Aleksandr [31]
So it is an isosceles triangle that means that the bottom two angles are equal...
so 
40 = 5x 
divide both sides by 5 and you get 8

now the triangle angles add up to 180
we make an equation out of it...
(2y + 20 ) + ( 5(8)) + 40 = 180
2y + 20 + 40 + 40 = 180
combine like terms
2y + 100 = 180
so subtract 100 from both sides
2y = 80
divide by 2 to isolate the variable
y = 40

You are correct!!! :)
5 0
3 years ago
Simplify. 2³+4⋅8 please I beg you
dalvyx [7]
2^3=2*2*2
2*2*2+4*8
8+32
=> 40
8 0
3 years ago
Read 2 more answers
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