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Oksanka [162]
3 years ago
5

Cars A and B leave the same place and travel in the same direction along a straight road. Car A travels at 60 km/h and car B tra

vels at 72 km/h. After how long will they be at 8km apart?
Mathematics
2 answers:
marissa [1.9K]3 years ago
5 0

Answer:

Car A: 8 minutes

Car B: 6.67 minutes

Step-by-step explanation:

Car A: 60km evrery hour so,

1 km every minute, so he will be in 8km in 8 minutes.

Car B: 72km per hour so,

72/60 = 1.2 = 1.2 km per minute.

8/1.2 = 6.6666666666667 which is about 6.67 to the nearest hundredth.

yaroslaw [1]3 years ago
5 0

Answer:

40 min

Step-by-step explanation:

Car A is traveling at 1 km/min (60/60)

Car B is traveling at 1.2 km/min (72/60)

Car B gains .2km on Car A for every minute they drive.

8km/.2 = 40

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(7^2)^x=1 solve for x
VashaNatasha [74]

Answer:

x=0

Step-by-step explanation:

You are asked what is the number to be use as the exponent of 7^{2}, in order to get as answer "1".

Use the property of exponents that sates that : a^0=1

In your case a=7^2=49 so the exponent "x"must be = 0 (zero)

7 0
4 years ago
Read 2 more answers
PLEASE HELP
arsen [322]
I think it is D. not sure tho
5 0
3 years ago
Read 2 more answers
Bed & Bath, a retailing company, has two departments—Hardware and Linens. The company's most recent monthly contribution for
kykrilka [37]

Answer:

By eliminating Linens department net operating income fell by $574,800.00

Step-by-step explanation:

The question requires that the monthly contribution income statement be prepared when the Linens is closed or eliminated,incorporating the unavoidable fixed costs of $373,000 as well as the fall in sales of Hardware by 15%.

             Monthly Contribution Income Statement:

Sales($3,110,000)*(1-15%)                               $2,643,500.00  

Variable expenses($858,000)*(1-15%)          ($729,300.00)

Contribution margin                                        $1,914,200.00  

Fixed expenses($1,480,000+$373,000)      ($1,853,000.00)

Net operating income                                        $61,200.00  

Reduction in net operating=$636,000-$61,200.00=$574,800  

Alternatively:

Lost contribution from closing Linens department    $674,000.00

Lost contribution from Hardware(15%*$2,252,000)   $ 337,800.00  

Total lost contribution                                                   $1,011,800.00  

Less avoidable fixed costs($810,000-$373,000)         ($437,000.00)

Reduction in profits company-wide                                $574,800.00  

8 0
3 years ago
Factor completely. y2 - xy - 56x2
aliina [53]
For this case we have the following expression:
 y2 - xy - 56x2
 Rewriting we have the factored expression, which is given by:
 (7x + y) (y-8x)
 Checking we have:
 7xy - 56x ^ 2 + y ^ 2 - 8xy
 y ^ 2 - xy - 56x ^ 2 (OK)
 Answer:
 
The factored expression is given by:
 
y2 - xy - 56x2 = (7x + y) (y-8x)
5 0
3 years ago
Please help and show work!!
leva [86]

-3x+9y =18

add 3x to each side

9y = 3x+18

divide by 9

y = 3/9 x +18/9

y = 1/3 x+2

the slope is 1/3

the y intercept  is 2

-3x+9y =18  

let y=0 to find the x intercept

-3x=18

divide by -3

x=-6

the x intercept is -6

4 0
3 years ago
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