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2 years ago

Elli left home8:30 and returned at 1:25how long was she away from home?

Mathematics

2 answers:

Komok [63]2 years ago

8 0

Answer:

3 hours and 45 minutes assuming its from am to pm

Step-by-step explanation:

Hope This Helps

Ivenika [448]2 years ago

3 0

4 hours and 55 Minutes

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What is the following product 3/x^2 4/x^3??

Alborosie

9514 1404 393

Answer:

12/x^5

Step-by-step explanation:

The fractions are multiplied in the usual way. The applicable rule of exponents is ...

(x^a)(x^b) = x^(a+b)

$\dfrac{3}{x^2}\cdot\dfrac{4}{x^3}=\dfrac{3\cdot4}{x^2\cdot x^3}=\dfrac{12}{x^{2+3}}=\boxed{\dfrac{12}{x^5}}$

7 0

2 years ago

Which statements are true about the ordered pair (−1, 5) and the system of equations?

Rudiy27

An ordered pair (x,y) is a solution to a system of equations if it makes all the equations true.
Let's check whether (–1, 5) makes the equations true.
Plugging –1 in the first equation for x and 5 in for y, we get
–1 + 5 = 4: TRUE
Plugging –1 in the second equation for x and 5 in for y, we get
–1 – 5 = –6: TRUE

Since it makes both the equations true, it's a solution to the system of equations. So the answer choice is D, the 4th one.

7 0

3 years ago

Read 2 more answers

There are 450 students at a school. If each classroom holds 30 students , how many classrooms are needed at school?

Sati [7]

Answer:

15 classrooms

Step-by-step explanation:

3 0

3 years ago

What is the slope of this graph?

larisa [96]

Since the slope is falling, instead of rising, it would be negative.

Now, on the line, I plotted (0, 2) and (-2, 10).

You would now plug this into the rise/run formula.
The formula is $\frac{y2 - y1}{x2 - x1}$

The equation would become,
$\frac{10 - 2}{-2 - 0}$ = $\frac{8}{-2}$ = -4

I believe the answer would be -4.

I hope this helps!

6 0

2 years ago

Sterile fruit flies are used in an experiment where the proportion that survives at least days is given by . if the experiment b

Nana76 [90]

Answer:

Number of fruit flies after 14 days is equal to 1880.

Step-by-step explanation:

given,

fruit flies at the beginning of the experiment = 200 fruit flies

rate of increase of fruit flies = 5 per hour

to calculate the number of flies after 14 days.

time = 14 days = 14 × 24 = 336 hours

flies after 14 days = initial number of flies + rate of increase × time

= 200 + 5 × 336

= 1880 fruit flies.

hence,Number of fruit flies after 14 days is equal to 1880.

4 0

2 years ago