Answer:
The solution is b = -1.5
Step-by-step explanation:
* To solve any proportion, we used the cross multiplication
Ex: If a/ b = c/d
- We will multiply the numerator of L.H.S with the denominator
of the R.H.S and equate it with the product of the denominator
of the L.H.S with the numerator of the R.H.S
∴ ad = bc
* Lets do that with our problem
∵
∴ 7 × 5 = 10 × (b + 5) ⇒ multiply
∴ 35 = 10(b) + (10)(5) ⇒ simplify
∴ 35 = 10b + 50 ⇒ subtract 50 from both sides
∴ -15 = 10b ⇒ divide both side by 10
∴ b = -1.5
* The solution is b = -1.5
Answer:
6. float, because the density is less than the density of water
7. sink, because the density is greater than the density of water
Step-by-step explanation:
Answer:
1/13
Step-by-step explanation:
There is a 3 in each suit of the deck so there are 4 number 3s in the deck. 4/52 simplifies to 1/13
Answer:
The interquartile range (IQR) for town A, 15° is less than the IQR for town B, 20°.
Step-by-step explanation:
From the boxplot Given ;
Town A :
The first quartile, Q1 = 15
Third quartile, Q3 = 30
The interquartile range, IQR = Q3 - Q1 = 30 - 15 = 15°
TOWN B :
The first quartile, Q1 = 20
Third quartile, Q3 = 40
The interquartile range, IQR = Q3 - Q1 = 40 - 20 = 20°
The interquartile range (IQR) for town A, 15° is less than the IQR for town B, 20°.
Answer:
3/4 times 18= 13.5
31.5-13.5=18
It cost 18 dollars for the skirt with a discount.
It cost 13.5 for the blouse as opposed to the original price of 18 dollars.
18(skirt)+13.5(blouse)=31.5
If you set up a proportion to find the original price of the skirt you will get the answer.
18/x=75/100
75x=18 times 100
75x=1800
75x/75=1800/75
x=24
The original price of the skirt is 24 dollars.
Step-by-step explanation: