Answer:
54 is anwer.
please mark me brainliest and follow me my friend.
because 54 is correct answer.
Given that,
Shelley's pet food store sold one customer 5 peanut butter biscuits for $3. She sold another customer 7 beef treats for $4.20.
For peanut, the cost is ratio is
![\dfrac{5}{3}](https://tex.z-dn.net/?f=%5Cdfrac%7B5%7D%7B3%7D)
For beef, the ratio is
![\dfrac{7}{4.2}](https://tex.z-dn.net/?f=%5Cdfrac%7B7%7D%7B4.2%7D)
If we take cross product of these items,
![\dfrac{5}{3}=\dfrac{7}{4.2}\\\\5\times 4.2=3\times 7\\\\21=21](https://tex.z-dn.net/?f=%5Cdfrac%7B5%7D%7B3%7D%3D%5Cdfrac%7B7%7D%7B4.2%7D%5C%5C%5C%5C5%5Ctimes%204.2%3D3%5Ctimes%207%5C%5C%5C%5C21%3D21)
It implies, that the sale is in true proportion. From the cross product, we find that it is equal.
The commutative property of addition means we can add two integers in any order. So yes, It would still apply to two negative integers (for example, -2 + -3 and -3 + -2 both equal five)
Answer:
<h3>11.8 feet</h3>
Step-by-step explanation:
Given
Length of the ladder = 12foot
angle of elevation = 80 degrees
Required
Height of the wall (opposite side)
The set up will form a right angled triangle where
length of the ladder is the hypotenuse
height of the wall is opposite;
Using SOH, CAH, TOA trig identity
According to SOH
sin 80 = opp/hyp
sin80 = opp/12
opp = 12sin80
opp = 11.82 feet
Hence the height of the wall is 11.8feet (to the nearest tenth)
Answer:
x= 1
/3
y+
−5
/3
y=3x+5
Step-by-step explanation:
brainliest?