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marissa [1.9K]
2 years ago
8

What is X when y= 9 and the equation is -3x+45

Mathematics
1 answer:
Harrizon [31]2 years ago
6 0

Answer:

12

Step-by-step explanation:

I think I haven't learned this yet If I did I forgot but sorry if wrong

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Marlene rides her bicycle to her friend​ jon's house and returns home by the same route. marlene rides her bike at constant spee
riadik2000 [5.3K]

To solve the problem:

<span>Let f = distance one way distance on level ground</span>

<span>
Let h = distance rode on the hill</span>

<span>
Write a time equation; where Time = distance/speed:</span>

<span>

level time + uphill time + downhill time + level time = 1hr</span>

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<span>f/9 + h/6 + h/18 + f/9 = 1 hr</span>

<span>

Multiply equation by 18 to get rid of the denominators</span>

<span>
</span>

 

2f + 3h + h + 2f = 18


4f + 4h = 18


Simplify by dividing this by 4


<span>f + h = 4.5 miles is took her to get to Jon’s house.</span>

6 0
2 years ago
Are These Graphs Functions?<br><br>​
chubhunter [2.5K]
Number one is but number two is not

of more than 1 dot is on an “up and down” line then it’s not a function
4 0
3 years ago
71.700 rounded to the nearest hundredth
Anna35 [415]

Answer:

71.70

Step-by-step explanation:

4 0
2 years ago
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David has 10 yd. Of material that he wiil cut into 15in. Thick mats. How many mats can David make?
Marysya12 [62]
<h2>Answer: He can make <u><em>24</em></u> mats.</h2>

Step-by-step explanation:

10 yards is equal to 360 inches. If you divided 360 inches by 15 inches, the answer will be 24. So the answer is 24 mats.

4 0
1 year ago
Can someone please help me with this?
mr_godi [17]
G = 2 inches


The first shape is 6 and 12. The two shapes are similar to each other, so the other shape must be 1 and 2. 6 divided by 6 is 1 so 12 divided by 6 is 2.
3 0
3 years ago
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