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3 years ago

Please help me!!!!!!!! :)

Mathematics

1 answer:

nirvana33 [79]3 years ago

3 0

Answer:

Step-by-step explanation:

the 30 year olds are more likely to pick chocolate as their favorite ice cream because the fraction of people who like chocolate is 14/20 where the other 3 are 4/20 and 2/20. this can be converted into percentages as well by multipling by 5. 70% of people who are in their 30s like chocolate opposed to the 20% and 10%.

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2x - 1 = 7 solved using algebra steps

prisoha [69]

First add like terms in this case 1+7=8. Then then divide. 2x/8= 4. X=4

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3 years ago

10 (2y + 2) - y = 2 (8y - 8)

Ede4ka [16]

Answer:

10(2y+2)= 10.2y+10.2

20y+20-y

2(8y-8)=2.8y-2.8

20y+20-y=16y-16

20y-16y-y=-20-16

3y=-36

36/3y=?

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Step-by-step explanation:

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3 years ago

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Patrick is keeping track of how far he jogs each morning.

katrin2010 [14]

Answer:

21:50

Step-by-step explanation:

We need to find the ratio of 420 m to 1 km.

We know that,

1 km = 1000 m

So,

The ratio becomes,

$\dfrac{420\ m}{1\ km}=\dfrac{420\ m}{1000\ m}\\\\=\dfrac{42\ m}{100\ m}\\\\=\dfrac{21}{50}$

So, the required ratio is 21:50.

5 0

3 years ago

What is the value of n?<br> A.81<br> B.85<br> C.38<br> D.47

Liula [17]

Answer:

Step-by-step explanation:

∠ABC= 180° -142° (adj. ∠s on a str. line)

∠ABC= 38°

∠BAC= 180° -133° (adj. ∠s on a str. line)

∠BAC= 47°

∠ACB= 180° -38° -47° (∠ sum of △)

∠ACB= 95°

n°= 180° -95° (adj. ∠s on a str. line)

n°= 85°

n= 85

6 0

3 years ago

The coordinates of the vertices of triangle QRS are Q (1,-2), R (1,9),

Darina [25.2K]

I think 1700000000000000000

5 0

2 years ago

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Please help me!!!!!!!! :)​

Please help me!!!!!!!! :)