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alexandr1967 [171]
2 years ago
5

Evaluate if k=39 and j=-10 what is the ansewer to K/3+J

Mathematics
1 answer:
luda_lava [24]2 years ago
4 0
The answer of this question is 3.
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Alfie sells flooring for playgrounds.
dexar [7]

area of playground= 9×15= 135m^2

area of lawn= 3×4=12m^2

total flooring area= 135-12= 123m^2

cost=36×123=$4428

6 0
3 years ago
Kelko will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $57 and cost an add
Delicious77 [7]

Questions (contd)

(a) For what amount of driving do the two plans cost the same?

(b) What is the cost when the two plans cost the same?

Answer:

(a) 100 miles

(b) $65

Step-by-step explanation:

Given

Plan 1:

Initial\ Fee = \$57

Additional = \$0.08 per mile

Plan 2:

Initial\ Fee = \$50

Additional = \$0.10 per mile

Solving (a): Number of miles when both plans are equal

Represent the distance with x and the cost with y

So:

Plan 1:

y = 57 + 0.08 * x

Plan 2:

y = 50 + 0.10 * x

To solve (a), we equate both plans together; i.e.

y = y

57 + 0.08x = 50 + 0.10x

Collect Like Terms

0.08x - 0.10x= 50 - 57

-0.02x= -2

Solve for x

x = -2/-0.02

x = 100

Hence, 100 mile would cost both plans the same

Solving (b): Cost when both plans are the same:

In this case, we simply substitute 100 for x in any of the y equation.

y = 57 + 0.08 * x

y = 57 + 0.08 * 100

y = 57 + 8

y = 65

<em>Hence, the amount is $65</em>

7 0
2 years ago
What is the value of K?<br> k =<br> 8<br> o<br> 4<br> k<br> N<br> 1<br> M
Vsevolod [243]

Answer:

m

Step-by-step explanation:

it should be

7 0
2 years ago
The Martins drove the 468 miles between Memphis, Tennessee and Cincinnati, Ohio in one day. If they left Memphis at 7 a.m. and a
saveliy_v [14]
52mph, depending what unit you need the answer in you may have to use conversions
4 0
3 years ago
What's the answer ????
gizmo_the_mogwai [7]
The mistake is line 4, she should have divided 42 by 5, not add 5 and 16
5 0
3 years ago
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