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3 years ago

Kira can run 5 miles for every 30 minutes. how many minutes will it take her to run 8 miles?

Mathematics

2 answers:

Vanyuwa [196]3 years ago

8 0

Answer:

it would take her 48 minutes.

Step-by-step explanation:

if she runs 5 miles in 30 minutes and keeps that steady pace then she runs 1 mile in 6 minutes. 8 miles times 6 minutes is 48 minutes.

Xelga [282]3 years ago

7 0

nevermind its 48 I'm so sorry

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3x + ky = 8

sattari [20]

Answer:

(a): x is 3 and ky is -1

(b): k is -2

Step-by-step explanation:

Let: 3x + ky = 8 be equation (a)

x - 2 ky = 5 be equation (b)

Then multiply equation (a) by 2:

→ 6x + 2ky = 16, let it be equation (c)

Then equation (c) + equation (b):

${ \sf{(6 + 1)x + (2 - 2)ky = (16 + 5)}} \\ { \sf{7x = 21}} \\ { \sf{x = 3}}$

Then ky :

${ \sf{2ky = 3 - 5}} \\ { \sf{ky = - 1}}$

${ \bf{y = \frac{1}{2} }} \\ { \sf{ky = - 1}} \\ { \sf{k = - 2}}$

4 0

3 years ago

(b) If the sum of two consecutive odd numbers is 48, find the numbers.

Rudiy27

Answer:

23, 25

Step-by-step explanation:

let the first number be represented as A, since there are two odd numbers, the second number would be A + 2

A + A+2 = 48

2A + 2 = 48

2A = 48 - 2

2A = 46 ( divide both sides by 2)

A = 23

since we know the next number to be A + 2

= 23 + 2 = 25

the two numbers are 23 and 25

6 0

2 years ago

PLEASE NEED HELP ASAP WILL MARK BRAINLIEST Question 2 of 10

VikaD [51]

Answer:

Step-by-step explanation:

8 0

3 years ago

PLZ HELP MEEEEE!!! i suck at fractions umu

Reil [10]

Answer:

The area of the baseboard is $135\ m^2$

Step-by-step explanation:

We have,

Length of the bed, l = 15 m

Width of the bed, b = 9/10 m

It is required to find the area of the baseboard. It is a shape of rectangle. The area of a rectangular shape is given by :

$A=l\times b\\\\A=15\ m\times \dfrac{9}{10}\ m\\\\A=\dfrac{135}{10}\ m^2\\\\A=135\ m^2$

So, the area of the baseboard is $135\ m^2$

8 0

3 years ago

What integer represents √ 4

wariber [46]

Answer:

2 is the answer

Step-by-step explanation:

the square root of 4 is 2... right?

3 0

2 years ago