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expeople1 [14]
2 years ago
9

PLEASE HELP ME!

Mathematics
1 answer:
cestrela7 [59]2 years ago
4 0

Answer:

1) 45 minutes

2) they meet in 20 minutes

3) (12-6)/(20/60)=18kmh

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alexandr1967 [171]

Answer:

you multiply

Step-by-step explanation:

multiple all the sides

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3 years ago
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Describe the features of x ≥ (y – 3)2 – 2? Check all that apply.
vitfil [10]

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B and E

Step-by-step explanation:

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2 years ago
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Marcie bought a total of 20 used books and cds during a yard sale for a total of 54.50$. of books cost 1.50$ each and cds 5$ eac
melomori [17]
Let numbers of books be 'b' and numbers of CDs be 'c'

We can set up two equations:
Equation [1] ⇒ b+c=20
Equation [2] ⇒ 1.50b+5c=54.50

We are solving for the number of books and the number of CDs bought

When we have two equations in terms of two different variables; b and c, that we need to solve, then this becomes a simultaneous equation problem. 

First, rearrange Equation [1] to make either b or c the subject:
b+c=20
b=20-c

Then we substitute b=20-c into Equation [2]
1.50b+5c=54.50
1.50(20-c)+5c=54.50
30-1.50c+5c=54.50
5c-1.5c=54.50-30
3.5c=24.50
c=7

Now we know the value of c which is c=7, substitute this value into b=20-c we have b=20-7=13

Answer:
Numbers of books = 13
Numbers of CDs = 7
5 0
3 years ago
What is the value of the expression below when y=2 AND z=8?<br> 8y-z
Kisachek [45]

Answer:

Step-by-step explanation:

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2 years ago
Teddy uses 2.5 gallons of ice to fill 4 buckets. He needs to 30 buckets.how many gallons of ice will teddy need
Ghella [55]

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18.75 gallons of ice

Step-by-step explanation:

I divided the 2.5 gallons of ice by the number of buckets (4) it filled to determine how many gallons of ice are in each bucket.

2.5 / 4 = 0.625

I then multiplied the amount of ice it takes to fill a bucket (0.625) by 30 buckets to get 18.75 gallons of ice.

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3 years ago
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