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german
3 years ago
10

Carlos earns $11.80 per hour working after school. He needs at least $410 to buy a refurbished cell phone. Write and solve an in

equality to find the least amount of hours he must work to be able to buy the phone.
Mathematics
1 answer:
mart [117]3 years ago
6 0
Like 3 hours I think to make it 410
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During a volleyball training session, Keela drank twice as much water as Carol, and Xavier drank 100 mL more water than Keela. B
vladimir2022 [97]

Answer:

580ml

Step-by-step explanation:

Let The quantity of water drank by Carol be x

Now given that Keela drank twice as much water as Carol which means the quantity of water drank by Keela is 2x

Also given that Xavier drank 100 mL more water than Keela which means the quantity of water drank by Xavier is 2x+100

Total water consumed by all the three is 3 litres=3000 ml

Total water drank = Water drank by Keela + Water drank by Xavier +Water drank by carol

3000=x+2x+2x+100

5x=2900

x=580ml

Carol drank 580ml of water.

5 0
3 years ago
Find z such that 97.5% of the standard normal curve lies to the left of z. (Enter a number. Round your answer to two decimal pla
fomenos

Answer:

z=1.96

Step-by-step explanation:

Using normal distribution table or technology, 97.5% corresponds to z=1.959964, generally denoted z=1.96, or 1.96 standard deviations above the mean.

(above value obtained from R)

6 0
3 years ago
Jacob walks 1.5 miles north. He turns and walks 0.8 miles west. How far is he from his starting point?
Flura [38]

Answer:

1.7 miles

Step-by-step explanation:

Given that,

Jacob walks 1.5 miles north.

He turns and walks 0.8 miles west.

We need to find how far is he from his starting point. Let he is at a distance of x miles from the starting point. It can be calculated as follows :

x=\sqrt{1.5^2+0.8^2} \\\\x=1.7\ \text{miles}

Hence, he is 1.7 miles from his starting point.

7 0
2 years ago
Help me with this: How many residents were surveyed?
PtichkaEL [24]
22 you just count all of the dots
7 0
2 years ago
Jon sold 3/4 of his books and purchased 3 more. If Jon has 11 books now how many books did he have to begin with?
slava [35]
I hope this helps you



begin jons all book 4a


sold 4a.3/4=3a


remaining book 4a-3a=a

3 purcased book a+3=11

a=8


4a=4.8=32 jons all book
5 0
2 years ago
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