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andrew11 [14]
3 years ago
11

use the formula d=rt to find the distance traveled by a car driving at an average speed of 50 miles per hour for four and a half

hours
Mathematics
2 answers:
Mama L [17]3 years ago
7 0

As per problem, we have

Average speed of car =50 miles per hour.

Time =4\frac{1}{2} hr

Given formula to use is

d=rt

\text{where d=distance traveled, r=Average speed, t= time}\\

So, to find the distance traveled can be find by substituting the values in the above equation we get

d=50*4\frac{1}{2}\\\\d=50*\frac{9}{2}\\\\d=25*9\\\\d=225 \ miles\\

Hence distance traveled =225 miles.

Mumz [18]3 years ago
6 0
Since she goes 50 mph for 4 and a half hours, we multiply 50 by 4 1/2

50 * 4 1/2 = 225

She travels 225 miles. Hope this helps!
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The temperature is -2°C. If the temperature rises by 15°C, what is the new temperature?
Furkat [3]

Answer:

13 C

Step-by-step explanation:

15-2=13

8 0
3 years ago
Which expression is the factored form of x2 – 7x 10? (x 3)(x 4) (x – 3)(x – 4) (x – 2)(x – 5) (x 2)(x 5)
alexandr402 [8]

The expression x^2 -7x + 10 can be written in factored form as given by Option C: (x-2)(x-5)

<h3>How to find the factors of a quadratic expression?</h3>

If the given quadratic expression is of the form ax^2 + bx + c

then its factored form is obtained by two numbers alpha( α ) and beta( β) such that:

b = \alpha + \beta \\ ac =\alpha \times \beta

Then writing b in terms of alpha and beta would help us getting common factors out.

Sometimes, it is not possible to find factors easily, so using the quadratic equation formula can help out without any trial and error.

For this case, we're provided the expression:

x^2 -7x + 10

We can write 10 as multiple of -5 and -2 and

we can write -7 as sum of -5 and -2. Thus, we get:

x^2 -7x + 10 = x^2 -5x - 2x + 10 = x(x-5+ -2(x-5) = (x-2)(x-5)

Thus, the expression x^2 -7x + 10 can be written in factored form as given by Option C: (x-2)(x-5)

Learn more about factorization of quadratic expression here:

brainly.com/question/26675692

4 0
2 years ago
PLEASE HELP ME, I HAVE BEEN WAITING FOR A DAAYY!! How old am i if 400 reduced by 3 times my age is 244?
Vlad1618 [11]

Answer:

52 years

Step-by-step explanation:

Let

Your age = x

3 times your age = 3 * x

= 3x

The equation can be written as:

400 - 3x = 244

400 - 244 = 3x

156 = 3x

Divide both sides by 3

x = 156/3

x = 52

Therefore,

Your age is 52 years

4 0
2 years ago
Find AB, given that line AD is the perpendicular bisector of BC
astraxan [27]

Answer:

AB = 9

Step-by-step explanation:

The perpendicular bisector divides Δ ABC into 2 congruent triangles, that is

Δ ABD ≅ Δ ACD , then

AB = AC = 9

5 0
3 years ago
25% of what number is 1.4
Yuki888 [10]

Answer:

5.6

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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