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Rudiy27
3 years ago
13

Jason is removing weeds from his garden. He estimates that there are 150 weeds in his garden at the moment, and he can remove we

eds at a rate of 3 per minute. At this rate how many minutes (m) will it take Jason to only have 30 weeds remaining in the garden?
Mathematics
2 answers:
Vlada [557]3 years ago
6 0
40 minutes! 150-30 = 120. Then 120/3 = 40
oee [108]3 years ago
4 0

Answer:

40 minutes

Step-by-step explanation:

→ Take the total away from the amount he wants left

150 - 30 = 120

→ Divide this by his rate

120 ÷ 3 = 40 minutes

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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
Find the unknown measure of the rectangle.<br> Area =28 square centimeters <br>Height =?
taurus [48]
Area of rectangle = Length*width
A = 28  so 28 = 4 * height
height  = 28/4 = 7
6 0
3 years ago
Read 2 more answers
4, 16, 64, 256, 1024, ... what is the exponential function ​
muminat

Answer:

y=x^4

Step-by-step explanation:

the equation is multiplying by 4 for every x value

5 0
3 years ago
The wind blew away 24 of your muffins. That was 3/4 of them! How many are left?
forsale [732]
Set up a proportion:

3/4/24 = 1/x

Cross multiply:

3/4x = 24

Divide 3/4 to both sides or multiply by its reciprocal, 4/3:

x = 24 * 4/3

x = 96/3

x = 32

So you had a total of 32 muffins, now subtract this from the amount that blew away to find out how many you have left:

32 - 24 = 8

So you have 8 muffins left.
3 0
3 years ago
Please answer this correctly
kvv77 [185]

Answer:

New mean will be( 8 + 3 + 4 + 2 + 8) / 2

= 25/5 = 5 (old was 6)

New median will be 4 (old was 8)

3 0
3 years ago
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