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Len [333]
3 years ago
11

Tim has already earned $30 mowing lawns. He earns $10 per lawn. Write and solve an inequality to determine how many more lawns h

e will have to mow to have at least $75 for a new lawnmower. Interpret the solution.
Mathematics
1 answer:
Fantom [35]3 years ago
5 0

Answer:

Tim needs to mow 5 more lawns in order to buy his new lawnmower

Step-by-step explanation:

1) Tim has already mowed $30 worth of lawns

2) Tim makes $10 per mow

4) Tim needs to make $75 total for his new mower

5) $75 - $30 = $45

6) Tim needs to make $45 in order to get his new mower

7) 5 x 10 = 50

8) Tim needs to mow 5 lawns in order to make over $45

9) If Tim only mowed 4 lawns he would make $40 and still be $5 short

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If 12 pens cost 3.48 how much do 20 cost
VARVARA [1.3K]

Step-by-step explanation:

12/3.48= cost of 1 book

cost of 20 books = 12/3.48×20 =68.95

7 0
3 years ago
Please please please please please please help me if u can tysmm
faltersainse [42]
Q55.
UTA+ATS=UTS
x+18+120=12x+17
x+138=12x+17
12x-x=138-17
11x=121
x=121/11
x=11

mUTA=x+18
put the value of x
11+18
mUTA=29

Q57.
AQP+RQA=RQP
9x+2+75=1+28x
9x+77=1+28x
28x-9x=77-1
19x=76
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x=4

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1+28(4)
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4 0
2 years ago
Which equation models the data in the table?
Zinaida [17]
I think it’s direct variation y= 12/x i’m note 100% sure tho
3 0
3 years ago
Suppose customers in a hardware store are willing to buy​ N(p) boxes of nails at p dollars per​ box, as given by the following f
AleksAgata [21]

Answer:

a) -15 unites per dollar

b) -12 units per dollar

c) -18 units per dollar

Step-by-step explanation:

We are given the following in the question:

N(p) = 100-3p^2, 1\leq p \leq 4

where N(p) is the number of boxes of nails at p dollars per​ box.

a) average rate of change of demand for a change in price from ​$2 to ​$3.

Average rate of change =

\displaystyle\frac{N(3) -N(2)}{3-2}\\\\=\frac{100-3(3)^2-(100 - 3(2)^2)}{1}\\\\= -15\text{ units per dollar}

b) instantaneous rate of change of demand when the price is ​$2

Instantaneous rate =

N'(p) = \displaystyle\frac{d(N(p))}{dp} = -6p

N'(2) = -6(2) = -12

The instantaneous rate of change of demand when the price is ​$2 is decreasing at 12 units per dollar.

c) instantaneous rate of change of demand when the price is ​$3

Instantaneous rate =

N'(3) = -6(8) = -18

The instantaneous rate of change of demand when the price is ​$3 is decreasing at 18 units per dollar.

4 0
3 years ago
What is the domain of the function graphed below?
Lana71 [14]

Answer:

A: X < 7

Step-by-step explanation:

8 0
2 years ago
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