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Strike441 [17]
3 years ago
15

20 POINTS IF YOU ANSWER THE QUESTIONS !!

Mathematics
1 answer:
Ymorist [56]3 years ago
7 0

Answer:

Step-by-step explanation:

Minutes is the x axis, and Distance is the y axis.

At 1 minute it looks like Cassie ran much less than 20 yards and Hector ran much further than 20 yards, so Hector started running faster.

Looking at the y axis at 100yards, it looks like Cassie finished at exactly  5 minutes, but Hector only made it to 80 yards. So Cassie won because it was a 100-yrd race.

You can see Hector stopped and rested for 1 minute once he reached 60-yrds. He stopped after 2 minutes.

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A personal trainer designs exercise plans based on a combination of strength-training and aerobic exercise. A beginner plan has
Korvikt [17]
"Each plan utilizes a combination of 2 strength-training sessions and 2 aerobic exercise sessions per week." because. 
Let n be the number of aerobic and strength-training exercises per week.
Let x be the number of strength-training exercises per week on the beginner  

15x + 20n = 90 

Let y be the number of strength-training exercises for  week on the advanced plan.
20y + 30n = 130 

Multiply both sides by 1.5, to get:
22.5x + 30n = 135 
Subtracting equation 2 from 3 we get:
22.5x - 20y = 5 
5 0
3 years ago
Read 2 more answers
4:×=28:42 ( pls send me photo of this ans)​
PilotLPTM [1.2K]

Answer:

4:x = 28:42

x × 28 = 4 × 42

28x = 168

x = 168/28

x = 6

3 0
3 years ago
: Susan works as a hostess where she makes $8.75 per hour. She also babysits and earns $10.00 per hour. Last week she made $165.
Troyanec [42]

Answer:

She worked 12 hours as a babysitter and hours 6 as a hostess

Step-by-step explanation:

She woks 6 hours and gets 52.20 as a hostess so if she worked 6 hours as a babysitter then she would make 60 and 165-60=105 and since she worked 6 hours as a baby sitter than she has to work 12 hours as a hostess to make 105  we know that 105+60 =165. Forgive me if I'm wrong but I hope this helps! [creds: cosmicredstone1]

4 0
4 years ago
Help me people u r my only hope!
Y_Kistochka [10]

Answer:

D)1/3 ?

Step-by-step explanation:

Maybe 1/3

Do some research, I guess it's D).

I hope that helps (:

1. The entire fraction is negative if the numerator or denominator are negative.

if both parts of the fraction were negative, the entire fraction would be positive (- / - = +)

2. Of course, although most teachers ask you to put the negative sign in the fraction as a whole (before the fraction line) or in the numerator. never leave a fraction with two signs. in this case, if it has two signs and they are different, the whole fraction is NEGATIVE

3) No. the whole fraction is POSITIVE only if both the numerator and the denominator have the same sign, + + or - -

8 0
3 years ago
What is 5u+10u for math 8?
blsea [12.9K]

Answer:

(5+10)u

= 15u

is the solution

6 0
2 years ago
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