Can someone help me with this and explain me how to do it please :) ^
Answers
Answer:
4
Step-by-step explanation:
2√x, √x + 1, 2√x + 1 sides of triangle
√x= y
2y, y+1, 2y+1
(2y)²+(y+1)²= (2y+1)²
4y²+y²+2y+1= 4y²+4y+1
y²-2y=0
y=0 (discarded as side can't be zero) or y= 2
so √x=2 ⇒ x= 4
Answer:
x= 4
According to the Pythagoras Theoram,
p²+b²= h²
=>x+2√x+1+4x = 4x +4√x +1
=> x = 4x - 4x +4√x- 2√x+ 1- 1
=>x= 2√x
=> x/√x = 2
=> √x = 2
Therefore, x= (√x)² = (2)² = 4
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Answers
so since we have "$2.10 in all"...
0.05n + 0.25q = 2.10
and we are told that there are "four times as many quarters as nickels"
this translates to
q = 4n
0.05n + 0.25q = 2.10
and
q = 4n
are your two equations that could be used to solve this problem
if you would like to know how many nickels and how many quarters there are, plug in q = 4n into the first equation and get
0.05n + 0.25(4n) = 2.10
multiply
0.05n + 1n = 2.10
add like terms
1.05n = 2.10
divide both sides by 1.05
n = 2.10/1.05 = 2
then plug that back into
q = 4n
so
q = 4(2) = 8
therefore you have
2 nickels
and
8 quarters
of a yard in
Answers
Answer:
Jeniffer can mow 3 lawns in an hour.
Step-by-step explanation:
If It takes Jennifer 20 minutes to mow the lawn. We are also given the time she spends mowing lawns. This is 1 hour.
For our solution to be correct, we will have to first of all convert 1 hour to minutes.
1 hour = 60 minutes.
Jeniffer should be able to mow 60 / 20 lawns in an hour. This will be 3 lawns in an hour.
A.) {-2, 2, 5, 7}
B.) {4,6,8,11}
C.) {(2,8),(5,6),(7,4),(-2,11)
D.) {-2,2,4,5,6,7,8,11}
Answers
Answer:
A.) {-2, 2, 5, 7}
Step-by-step explanation:
The range of a set of ordered pairs is the set of second numbers in the pairs.
Here, the second numbers are 2, 5, 7, -2. When written as a set, it is convenient (though not required) that they be written in numerical order:
{-2, 2, 5, 7} . . . . matches choice A
Answer:
A.) {-2, 2, 5, 7}
Step-by-step explanation:
Answers
4x +13 +6x+ 2 = 14x-13 ( exterior angle property )
10x +15=14x-13
10x-14x=-13-15
-4x=-28
=> x = 7
Hope it helps
:)
Answers
Answer:
$1200
Step-by-step explanation:
78 = 6.5%
This means that if you divide 78 by 6.5, you get the equivalent of 1% of the price:
78 ÷ 6.5 = 12
So 1% = 12
Now simply multiply this by 100 to get the full answer:
12 x 100 = 1200
So the camera cost $1200!
Hope this helps!
Final answer:
To find the cost of the camera, subtract the sales tax from the total amount paid. The cost of the camera was approximately $1200.
Explanation:
To find the cost of the camera, we need to subtract the sales tax from the total amount paid. Let's denote the cost of the camera as 'x'. Since the sales tax rate is 6.5%, we can calculate the sales tax as 6.5% of 'x'. Therefore, the equation becomes:
0.065x = 78
To solve for 'x', we divide both sides of the equation by 0.065:
x = 78 ÷ 0.065
Using a calculator, we find that x ≈ 1200. So, the cost of the camera was approximately $1200.
Learn more about Sales tax here:
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