Answer:
8
Step-by-step explanation:
5 + 7 = 12
48 / 12 = 4
5 x 4 = 20
7 x 4 = 28
There are 8 girls more than boys
Let
x-------> one number
y--------> another number
we know that
x=6y--------> equation 1
(1/x)+(1/y)=14/3-----> (x+y)/xy=14/3-----> 3*(x+y)=14xy-----> equation 2
<span>I substitute 1 in 2
</span>3*(6y+y)=14(6y)y------> 21y=84y²-----> y=0.25
x=6y-----> x=6*0.25-----> x=1.5
the answer is
the numbers are 1.5 and 0.25
<span>9x+8y=-3
5x-2y=-21
multiply 2nd equation by 4
</span><span>9x + 8y = -3
20x - 8y = -84
-----------------add
29x = -87
x = -3
</span><span>9x+8y=-3
</span><span>9(-3)+8y=-3
-27 + 8y = -3
8y = -3 +27
8y = 24
y = 3
answer
(-3,3)</span>
Since the price of the cantaloupes is unknown, it will have to represented by a variable. Let's use x.
If Jackson starts with $25 and buys 5 cantaloupes of an unknown price, this subtracts 5 times the amount of 1 cantaloupe (which is x) from that $25.
This is shown as 25 - 5x.
After spending that money, he has $2.50 left over.
This means 25 - 5x = 2.50.
Now you just need to solve this by first isolating the variable.
First, subtract 25 from both sides.
25 - 5x - 25 = -5x
2.50 - 25 = -22.5
Then, divide both sides by -5. It's -5 since 5 is the coefficient and it's negative, so -5.
-5x / -5 = x
-22.5 / -5 = 4.5
This means x = 4.5.
And if x is 4.5, then that means the cost of 1 cantaloupe is $4.50.
I "believe" its 0.67 or 0.667
I might be wrong so just wait for other answers.
