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4 years ago

What's 0.7 multiplied by 9 Estimate Tell me estimation and answer in comments

Mathematics

2 answers:

kirill [66]4 years ago

8 0

Estimate:6
Answer:6.3

olga55 [171]4 years ago

8 0

Answer 6.3 estimate 6

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Santos went on a bike ride of 90 miles. He realized that if he had gone 24 mph faster, he would have

Gnoma [55]

<h3>Answer: 6 mph</h3>

========================================

Explanation:

distance = rate*time

90 = r*t

where r is the slower speed and t is the time it takes when going that slower speed.

If r is bumped up 24 mph faster, to r+24, then Santos takes t-12 hours to get there. The second equation is

90 = (r+24)(t-12)

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

We can solve the first equation for r to get r = 90/t

Then plug this into the second equation and do a bit of algebra

90 = (r+24)(t-12)

90 = (90/t+24)*(t-12)

90 = 90 - 1080/t + 24t - 288

90t = 90t - 1080 + 24t^2 - 288t

0 = 90t - 1080 + 24t^2 - 288t-90t

0 = 24t^2 - 288t - 1080

24t^2 - 288t - 1080 = 0

If you apply the quadratic formula, then you should get the two solutions t = -3 and t = 15. Due to time constraints, I'll skip these steps.

We'll ignore the negative t value. It makes no sense to have a negative time.

So we focus on t = 15 as the only solution.

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

If t = 15, then,

r = 90/t

r = 90/15

r = 6

Santos rode his bike at <u>6 mph</u> at first. Going this speed means he takes 15 hours.

If he rode 24 mph faster, at 6+24 = 30 mph, then he would ride for 15-12 = 3 hours instead. Note that 90/30 = 3.

5 0

3 years ago

Please Answer ASAP! Answer MUST include an explanation in order to receive points and the Brainliest. Thank you.

kicyunya [14]

Okay, So What We Need To Do Is Make A Fraction. 1/4 Is The Fraction. So, Now We Must Multiply It.
1/4*1/4*1/4.
1/4*1/4 = 1/16.
1/16*1/4 = 1/64.
That Means That It Is A 1/64 Chance That It Will Always Be A One Three Times In A Row.

4 0

4 years ago

What type of transformation takes the graph of f(x)=|x| to the graph of g(x)=−3+|x|?

crimeas [40]

Answer:

vertical translation of 3 units down

Step-by-step explanation:

we have

$f\left(x\right)=\left|x\right|$ ----> the parent function

The vertex of f(x) is the point (0,0)

$g\left(x\right)=-3+\left|x\right|$ ----> the transformed function

The vertex of g(x) is the point (0,-3)

The rule of the translation is

f(x) -----> g(x)

(0,0) ----> (0,-3)

(x,y) ----> (x,y-3)

That means ---> The translation is 3 units down

see the attached figure to better understand the problem

7 0

3 years ago

HELP PLEASE CAN’T FIGURE THIS OUT NEED HELP

Ivanshal [37]

Answer:

LN= 68°

Step-by-step explanation:

6 0

3 years ago

You purchase 26 "parking hours" that you can use over the next month to park

Nadusha1986 [10]

Answer:

The number of weekday hours are 5.

Step-by-step explanation:

<em>Let the number of weekday hours be "x".</em>

<em>The total week hours are 26, then number of weekend hours is (26-x) .</em>

<em>The charges for weekdays are $2 per hour and for weekends $10 per hour.</em>

The total money spent is $220.

$(2)(x) + (26-x)(10) = 220$

$8x = 40$

x = 5.

Thus weekday hours utilized are 5 hours, and weekend are (26-5) 21 hours.

4 0

3 years ago