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kumpel [21]
3 years ago
7

Sue can run 18 miles in 2 hours and can bike 60 miles in 3 hours. What percent of Sue's average biking speed is her average runn

ing speed? A. 25% B. 30% C. 45% D. 55%
Mathematics
2 answers:
natka813 [3]3 years ago
6 0
18/60 X 100 = 30%. So the correct answer is B.
Shkiper50 [21]3 years ago
3 0

Answer:

45


Step-by-step explanation:

is the answer


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Slope Intercept form can someone please help me I am so confused
Andreyy89
You want to get familiar with what the slope-intercept form equation means. even though the discussion board covers some of this... slope-intercept is y = mx + b, and in it, x and y are a point on your graph (x, y), m is the slope, and b is your y-intercept. in word problems, any constant will typically be b.

but, really, to answer this word problem, you don't have to think so hard about y = mx + b. just read the problem and bring your information together:

"the venue will cost $1500 to rent for an evening"
"$25 per person"

so they only gave you two bits of information, and you just have to decide where they fit. if the venue costs $1500 for an evening, that's a fixed cost--the 1500 isn't going to go up or down depending on the number of people at the charity event. it stays. you're paying 1500 regardless, even if 2 people show up. because the discussion board states that b should represent your starting amount, you're automatically $1500 in the hole, because you have to spend that much to get the venue. you will, however, write it as a positive integer, because the question wants you to calculate the total cost, by my understanding--you're adding the cost of the people with the cost of the venue.

$25 is not a fixed amount. if it's $25 per person, then if 2 people come, it costs $50, if 3 people arrive, it costs $75. this cost is dependent upon the number of people, which you can call "x"

with that information, write any other equation you would for a word problem:

y = 25x + 1500

that's your equation, and it just so happens that this equation is in y = mx + b format. the x-value represents the number of people who show up for the charity; the y-value represents the overall cost.

and you need three solutions for this equation--which, luckily, is a quick and easy process!! choose an x-value and solve for y.

y = 25x + 1500

when x = 1...
y = 25(1) + 1500
y = 25 + 1500
y = 1525
ordered pair: (1, 1525)

when x = 2...
y = 25(2) + 1500
y = 50 + 1500
y = 1550
ordered pair: (2, 1550)

when x = 3...
y = 25(3) + 1500
y = 75 + 1500
y = 1575
ordered pair: (3, 1575)

i hope that helped!!
6 0
3 years ago
What’s the ratio for 40 and 64
NARA [144]

Answer:

5/8, 5:8, or 5 to 8

Step-by-step explanation:

you have to simplify the ratio so you have to figure out what 40 and 64 have in common. tho right away you can assume that they both have 2 in common bcz they are both even so you can divide them both by two and get 20/32, and then you can do it again bcz they are both even again and get 10/16, and then you can do it again bcz they are also both even and get 5/8. now 5 is a prime number so you cant divide it any further so you stop it there. and i put three answers bcz there are three ways to write a ratio

6 0
3 years ago
The scores on a test are normally distributed with a mean of 110 and a standard deviation of 22. What is the score that is 3 sta
Alborosie

Answer:

Step-by-step explanation:

If the mean is 110, and the standard devaition is 22,

1 standard dev. below the mean is 110-22

2  standard dev below the mean is 110-22-22

3 standard dev below the mean is 110-22-22-22

Hope that helps!

7 0
3 years ago
Please solve with explanation
leva [86]

Answer:

i pray you get it right lol

Step-by-step explanation:

just ask a teacher

8 0
2 years ago
Solve for x ~<br><img src="https://tex.z-dn.net/?f=6x%20-%2036%20%3D%2012" id="TexFormula1" title="6x - 36 = 12" alt="6x - 36 =
Shtirlitz [24]

\large \tt \:  \:  \:  \:  \:  \: ⇝ \: 6x - 36 = 12

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\large \tt \:  \:  \:  \:  \:  \: ⇝ 6x = 12 + 36

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\large \tt \:  \:  \:  \:  \:  \: ⇝ 6x = 48

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\large \tt \:  \:  \:  \:  \:  \: ⇝ \:x =   \cancel\frac{48}{6}

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\boxed{ \large \bf \color{purple}  \:  \:  \:  \:  \: ⇝ \:x = 8}

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-_- Hope Helps!¡!¡!¡!¡!

7 0
2 years ago
Read 2 more answers
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