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Liono4ka [1.6K]
3 years ago
9

A bottle is filled with 4oz of perfume. If 20% of the perfume evaporates, how many ounces remain?​

Mathematics
2 answers:
marusya05 [52]3 years ago
7 0
0.8 oz.
4x0.20=0.8
I hope this helps
andrey2020 [161]3 years ago
7 0

Answer:

The answer will be:-  ( 0.8 oz ).

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Please helpp mee huhu KABESJSBA
Bogdan [553]

Answer:

Can u show the whole question

8 0
3 years ago
Dylan delivers parcels.
vovikov84 [41]

Answer:

Dylan delivered 140 parcels on Wednesday.

Step-by-step explanation:

On Wednesday:

On Wednesday, he delivered x parcels.

Thursday:

10% more than Wednesday, so 100 + 10 = 110% of x = 1.1x

Friday:

50% pless than on Thursday, so 100 - 50 = 50% of 1.1x = 0.5*1.1*x.

THis is equals to 77. So

0.5*1.1x = 77

x = \frac{77}{0.5*1.1}

x = 140

Dylan delivered 140 parcels on Wednesday.

5 0
3 years ago
The sum of the circumference of two circles is 38π cm and the sum of their areas is 193π cm². Calculate the radii of the circles
sdas [7]

Answer:

The radii of the circles are 12 cm and 7cm.

Step-by-step explanation:

Let the radii of the circles be r_{1}\ and\ r_{2}

Given:

Sum of circumference of two circles= 38π cm

Formula for circumference of a circle with radius r = 2πr

2\pi r_{1}+2\pi r_{2}=38\pi \\r_{1}+r_{2}=19------------1

Sum of areas of two circles= 193π cm²

Area of circle with radius r = πr²

\pi r_{1}^{2}+\pi r_{2}^{2}=193\pi \\r_{1}^{2}+r_{2}^{2}=193-------2

Substituting r2 = 19 - r1 in equation 2 we get:

r_{1}^{2}+(19-r_{1})^{2}=193\\2r_{1}^{2}-38r_{1}+168=0\\r_{1}^{2}-19r_{1}+84=0\\(r_{1}-12)(r_{1}-7)=0\\r_{1}=12\ or\ 7

Then r2 = 19 - r1

r_{2}=12\ or\ 7

7 0
3 years ago
Jk/j+k when j = 6 and k = 12
arlik [135]

Answer: I'm pretty sure it's 15

Step-by-step explanation:

18/6+12

3+12

15

3 0
3 years ago
Luke’s age is 46, which is 26 less than 12 times Levi’s age. Find Levis age.
SOVA2 [1]

Answer:

Levi is 6

Step-by-step explanation:

46 + 26 = 72

72 / 12 = 6

8 0
3 years ago
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