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Rudiy27
3 years ago
14

Using elimination, what is the solution to the following system? 2x+4y=16 -2x-3y=-13

Mathematics
1 answer:
VikaD [51]3 years ago
8 0

Answer:

x=2, y=3. (2, 3).

Step-by-step explanation:

2x+4y=16

-2x-3y=-13

-----------------

y=3

2x+4(3)=16

2x+12=16

2x=16-12

2x=4

x=4/2

x=2

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A bug completes one lap along the edge of a circular planter of radius 11.7 cm in 13.91 s. How fast was it traveling? 1. 10.8518
IrinaK [193]

Answer:

8.5.28492 cm/s

Step-by-step explanation:

We are given that

Radius of circular planter=11.7 cm

Time taken by bug =13.91 s

We have to find the speed of bug.

We know that

Speed =\frac{distance}{time}

Distance traveled by bug =2\pi r

Distance traveled by bug =2\times 3.14\times 11.7

Because \pi=3.14

Speed of bug=\frac{2\times 3.14\times 11.7}{13.91}=5.28224 cm/s

Hence, speed of bug=5.2822 4 cm/s

Answer:8.5.28492 cm/s

8 0
3 years ago
The Wonderful Widget Company's earnings have declined to the point where they need to reduce the number of employees from 1500 1
AleksandrR [38]

Answer:6%

Step-by-step explanation:

Decrease = 1500 - 1410= 90

% decrease = (90/1500)*100%

= 6%

7 0
3 years ago
An equation is shown. 2x^2 -5x-3=0<br> what values of x make rhe equation true?
olya-2409 [2.1K]
X= -1
Use trial and error method
When you substitute x=-1 you will get 0 as the answer..!
Enjoy your day
3 0
4 years ago
An epidemiologic survey of roller-skating injuries in Metroville, a city with a population of 100,000 (during the midpoint of th
Ahat [919]

Answer: c. \dfrac{90}{1800}\times100\%

Step-by-step explanation:

As per given , we have

Total number of residents injured from roller-skating =1,800

Total number of deaths from roller-skating = 90

Formula for Mortality rate : Mortaility\ rate= \dfrac{Deaths\ due \ to\ injury}{Tota\ injuries}

Then, the proportional mortality ratio (%) due to roller-skating was

=\dfrac{90}{1800}\times100\%

= 5%

Hence, the correct answer is c.\dfrac{90}{1800}\times100\%

8 0
4 years ago
I need u to show me work.about 4 divided by 1/4
KengaRu [80]
4 divided by 1/4
4 times 4/1
4 times 4 equals 16
4 0
3 years ago
Read 2 more answers
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