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aev [14]
3 years ago
15

Noah and his friend Tyree are involved in a math challenge. Noah solves 115 problems in 2 min. Tyree solves 172.5 problems in 3

min. Who solves more problems per minute? Question 4 options: A) Noah solves more per minute B) Tyree solves more per minute C) They solve the same number of problems per minute D) Not enough information
Mathematics
2 answers:
Natasha2012 [34]3 years ago
6 0

C) They solve the same number of problems per minute

172.5 Divided by 2

115 divided by 2

= 57.5

bonufazy [111]3 years ago
6 0

Answer:

C) They solve the same number of problems per minute

because

115 / 2 = 57. 5

172.5 /2 = 57.5

Step-by-step explanation:

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given y>0 and dy/dx=(3x^2+4x)/yif the point (1,√10) is on the graph relating x and y, then what is y when x=0
jonny [76]
\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{3x^2+4x}y\iff y\,\mathrm dy=(3x^2+4x)\,\mathrm dx
\implies\displaystyle\int y\,\mathrm dy=\int(3x^2+4x)\,\mathrm dx
\implies \dfrac12y^2=x^3+2x^2+C

When x=1 you have y=\sqrt{10}, so

\dfrac12(\sqrt{10})^2=1^3+2(1)^2+C\implies 5=1+2+C\implies C=2

and so the particular solution to the ODE is

\dfrac12y^2=x^3+2x^2+2

Then when x=0, you get

\dfrac12y^2=0^3+2(0)^2+2=2
\implies y^2=4
\implies y=2

where we omitted the negative root because it's given that y>0.
4 0
3 years ago
Solve the system by the elimination method.
joja [24]

Answer: B

Step-by-step explanation:

YOU MINUS 4 -4 WHICH IS -8 SO ITS B

8 0
3 years ago
Read 2 more answers
Question 6
netineya [11]

Answer:

y= 84

Step-by-step explanation:

y = kx

where k is the constant

k = y/x = 91/13 = 7

the value of Y when x= 12

y = kx =7(12)

y =84

4 0
3 years ago
PLS HELP ME ILL GIVE YOU BRAINIEST!!!
kenny6666 [7]

The <em>total surface</em> area of the three figures are 702 square feet.

<h3>How to estimate the amount of metal needed to produce a given amount of figures</h3>

According to this problem, we are required to determine the amount of metal needed to build three pieces with the dimensions presented in the figure.

In this case, we need to estimate the <em>total</em> surface area (A_{T}), in square feet, required for the production of the three pieces, that is, the product of the number of pieces (<em>n</em>), no unit, and the surface area of each piece (<em>A</em>).

Now we proceed to calculate the total surface area:

A_{T} = n\cdot A

A_{T} = 3\cdot \left[(5\,ft)\cdot (8\,ft) + (2\,ft)\cdot (8\,ft)+(8\,ft)\cdot (7\,ft)+(3\,ft)\cdot (8\,ft) \\

+(5\,ft)\cdot (8\,ft)+2\cdot (3\,ft)\cdot (5\,ft) + 2\cdot (4\,ft)\cdot (2\,ft) + (3\,ft)\cdot (4\,ft) ]

A_{T} = 702\,ft^{2}

The <em>total surface</em> area of the three figures are 702 square feet. \blacksquare

To learn more on surface areas, we kindly invite to check this verified question: brainly.com/question/2835293

7 0
2 years ago
Read 2 more answers
23 POINTS HERE PEOPLE
SOVA2 [1]

Hello!  

<h2>Answer: </h2>

23. 138 people voted for Nyemi, 69 people voted for Luke, and 23 people voted for Natalie.

24. Reina did not ride 11/16 of the rides.

<h2>Explanation:</h2>

23:

3 ÷ 5 = 0.6

230 × 0.6 = 138

230 × 0.3 = 69

230 × 0.1 = 23

24:

We know that Alberto rode 5/8 of the rides at the park, and Reina rode half of this.

5/8 × 1/2 = 5/16

16 - 5 = 11

8 0
3 years ago
Read 2 more answers
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