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babymother [125]
3 years ago
14

I need help writing an equation for this problem. please help me

Mathematics
2 answers:
kkurt [141]3 years ago
3 0
X = hours of renting
30x = 20x + 40
10x = 40
    x = 4

answer
4 hours, both plans have same cost of renting
Lena [83]3 years ago
3 0
The first plan 1 hour and the second plan 2 hours which would make both answer 60 so...
30 x 2 = 60
20 + 40 = 60
You might be interested in
Aaaaaa help I’m stuck at F I really need to do this so I could get a D please with explanation
Fed [463]

Answer:

$1.51

Step-by-step explanation:

1.25 lb. of dried fruit  :  \frac{\$1.84}{lb.}*\frac{1.25\ lb.}{1}=\$2.30

0.5 lb. of cereal  :  \frac{\$2.38}{lb.}*\frac{0.5\ lb.}{1}= \$1.19

Cost = $2.30 + $1.19 = 3.49

Money = $5

$5 - $3.49 = $1.51 in change

5 0
3 years ago
Cell Phone Company A charges $20 each month plus $0.03 per text. Cell Phone Company B charges $5 each month plus $0.07 per text.
Ymorist [56]
Cost of company A=monthlyfee+text=20+0.03t where t=number of texts
A=20+0.03t

company b is monthlyfee+texts=5+0.07t
B=5+0.07t



1.
c=20+0.03t
c=5+0.07t
using c for cost is confusing because we can't tell which is for which company



2.

equal, means the costs are equal so
20+0.03t=5+0.07t
minus 5 from both sides
15+0.03t=0.07t
minus 0.03t from both sides
15=0.04t
divide both sides by 0.04
375=t
the answer is 375 texts
4 0
3 years ago
Read 2 more answers
What is the y-coordinate of the solution for the system of equations?
8_murik_8 [283]
First equation is: x - y = 12
x = 12 + y

Now, substitute this in 2nd equation, 
2x - 3y = 27
2(12+y) - 3y = 27
24 + 2y - 3y = 27
-y = 27 - 24
y = -3

In short, Your Answer would be -3

Hope this helps!
5 0
3 years ago
Emily bought some ice cream cones which cost $24. she paid $m and got back $6 of change. Find m​
maria [59]

Answer:

m = 30

Step-by-step explanation:

total = 24

m = amount paid

change = 6

m - 6 = 24

<u>      +6    +6</u>

m = 30

<em><u>Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!!</u></em>

<em><u>-Lil G</u></em>

7 0
3 years ago
Can somebody help me with this?
icang [17]

We are given polynomial: 5x^3+8x^2-7x-6.

We need to explain why the binomial (x + 2) IS a factor of this polynomial expression and  why the binomial (x + 1) IS NOT a factor of this polynomial expression.

Let us set first factor equal to 0 and solve for x.

x+2=0

x=-2.

Plugging x=-2 in given polynomial, we get

5(-2)^3+8(-2)^2-7(-2)-6 = 5(-8) +8(4)+14-6

= -40 +32+14-6

=0

<em>Because x=-2 gives 0 on plugging in given polynomial, so it's factor of given polynomial expression.</em>

Now, let us check second factor x+1=0

x=-1.

Plugging x=-1 in given polynomial, we get

5(-1)^3+8(-1)^2-7(-1)-6 = 5(-1) +8(1)+7-6

=-5+8+7-6.

= -4.

<em>Because x=-1 doesn't gives 0 on plugging in given polynomial, so it's not a factor of given polynomial expression.</em>

7 0
3 years ago
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