2 years ago

1+4=5 2+5=12 3+6=21 8+11=

Mathematics

2 answers:

borishaifa [10]2 years ago

5 0

8+11=19 the answer is 19

RSB [31]2 years ago

5 0

Hey, DMC56!
8+11=19
A way you can do this is you have 8 cookies and your mom hands you 11 more. How many cookies do you have now?
I hope this helps;)

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2 years ago

X + y = 152, 8.5x + 12y = 1,656 How many hats were sold?

Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

$x+y = 152\\8.5x+12y=1656$

From equation 1:

$x = 152-y$

Putting the value of y in equation 2

$8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104$

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

$x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48$

Hence,

The solution of the system of equations is x = 48 and y = 104

The value of variable which was assumed for number of hats, is the total number of hats.

6 0

2 years ago

PLEASE HELP ASAP

dexar [7]

Answer:

A.-4x^2y^4

that the answer

3 0

2 years ago