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3 years ago

A) miles per hour b) It will take her hours to go 4.5 miles

Mathematics

2 answers:

stealth61 [152]3 years ago

7 0

Answer: If she is going 1 mile per hour she will drive 4.5 miles in 4 hours and 30 minutes

weeeeeb [17]3 years ago

3 0

Answer:

divide 3.75 by 0.3 for your number in mph. If I drive 60 miles in 4 hours, I was driving 60/4 = 15 mph.

Step-by-step explanation:

if its wrong im sorry i got it from my friend

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Mamont248 [21]

Answer:

Step-by-step explanation:

4y - 2x

= 4(7) - 2(8)

= 28 - 16

= 12

4 0

3 years ago

PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST

AysviL [449]

Answer:

Step-by-step explanation:

The first choice is correct

The rate is 20 per dog, thus we get the equation:

c= 20d

However the first dog is free, so the equation becomes

c = 20(d - 1)

And he also has a walking fee of 85 dollars and thus the equation becomes

c= 85 + 20(d-1)

5 0

2 years ago

School a has 450 seniors, and 432 of them go to college. School B has 380 seniors, and 361 of them plan to go to college. In whi

Natasha_Volkova [10]

Answer:

School A.

Step-by-step explanation:

School A: % who plan to go to college = (432/450) * 100

= 96%.

School B: % who plan to go to college = (361/380) * 100

= 95%.

5 0

3 years ago

In the set of scores: 14, 17, 10, 22, 19, 24, 8, 12, and 19, the Q2 is?

NNADVOKAT [17]

Answer:

Step 1: rerrange the data

8 , 10, 12, 14, 17, 19, 19, 22, 24

Q2 is the median
see that the middle number is 17

8 0

2 years ago

In a certain year, brand A of heart-rate watch cost $39.99 and brand B cost $59.99. A nonprofit community health organizatio

Oksi-84 [34.3K]

Answer:

Brand A = 21 heart-rate watches.

Brand B = 13 heart-rate watches.

Step-by-step explanation:

Let A be the number of Brand A heart watches and B be the number of Brand B heart watches.

We have been given that a nonprofit community health organization purchased 34 heart-rate watches for use at a wellness center.

We can represent this information in an equation as:

$A+B=34...(1)$

We have been given that in a certain year, brand A of heart-rate watch cost $39.99 and brand B cost $59.99 and the organization spent $1619.66 for the watches.

We can represent this information in an equation as:

$39.99*A+59.99*B=1619.66...(2)$

We will use substitution method to solve our system of equations.

From equation (1) we will get,

$A=34-B$

Substituting $A=34-B$ in equation(2) we will get,

$39.99*(34-B)+59.99*B=1619.66$

$1359.66-39.99*B+59.99*B=1619.66$

$-39.99*B+59.99*B=1619.66-1359.66$

$20*B=260$

$B=\frac{260}{20}$

$B=13$

Therefore, the organisation purchased 13 heart-rate watches of brand B.

Now let us substitute B=13 in equation (1).

$A+13=34$

$A+13-13=34-13$

$A=21$

Therefore, the organisation purchased 21 heart-rate watches of brand A.

8 0

3 years ago

A)______ miles per hour b) It will take her______ hours to go 4.5 miles

A) miles per hour b) It will take her hours to go 4.5 miles