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SpyIntel [72]
3 years ago
14

Gloria’s washing machine is broken. Since her machine is pretty old, she doesn’t want to spend more than $100 for repairs. A ser

vice call will cost $35 and the labor will be an additional $20 per hour. There are no other charges. What is the maximum number of hours that the repair person can work without the total cost exceeding $100?
Mathematics
1 answer:
jarptica [38.1K]3 years ago
5 0

Answer:

3 hours

Step-by-step explanation:

100- 35=65/20=3

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Question 3*
il63 [147K]
Please help me with the last question just write the equation in vertex form
I’ll mark as brainliest

8 0
3 years ago
Read 2 more answers
1. What is the solution of n² – 49 = 0? (1 point)
maks197457 [2]

Answer:

1. n=\pm7

2. x=\pm7i[tex]3.[tex]\pm 12x =a

4. 22

Step-by-step explanation:

1. n^2 - 49 = 0

n^2 =49

n= \sqrt{49}

n=\pm7

2. x^2+64 = 0

x^2 =-64

x= \sqrt{49}

x=\pm7i[tex]3. Area of square = [tex]a^{2}

Where a is the side

We are given an area o square = 144x^{2}

So, 144x^{2}=a^{2}

\sqrt{144x^{2}}=a

\pm 12x =a

4. We are given that the solution of quadratic equation -9 and 9

So, equation becomes:

(x+9)(x-9)=0

x^2- 81=0

So, in the given equation x^2 + z = 103

z should be the number from which if we subtract 103 so we get 81

Substitute z = 22

x^2 + 22 = 103

x^2 + 22 -103=0

x^2 -81=0

Thus the value of z is 22

8 0
3 years ago
Read 2 more answers
A bunny seller began their business with only 2 bunnies. The seller noticed that the number of bunnies the farm expanding after
12345 [234]

Step-by-step explanation:

A bunny seller began their business with only 2 bunnies. The seller noticed that the number of bunnies the farm expanding after t days can be modeled by the equation

P=2(3)^t

we know that the exponential equation is in the form of

y=a(b)^x

Where 'a' is the initial value

y is the final value

b is the rate factor

x is the time period

P=2(3)^t

3^3 represent the value of t is 3

we know that 't' represents the number of days

3^3 represent the farm expanding after 3 days

4 0
3 years ago
How to find the circumference of a circle that is 42m and has diameter
Nitella [24]

Answer:

Circumference of the circle is 131.88m

Step-by-step explanation:

we have to find the circumference of the given circle.

Given:

                     Diameter=42 m

          \\diameter=2*radius\\42 =2*radius\\radius=42/2\\radius=21 m

Circumference of a circle= 2\pi r

                          =2*\pi *21\\=2*3.14*21\\=42*3.14\\=131.88

So, the circumference of the circle is 131.88m

6 0
3 years ago
-5e + (-3) = 27 helppppp
erik [133]

Answer:

E=-6

Step-by-step explanation:

-5e+(-3)=27

Therefore,

-5e-3=27

Therefore,

-5e=27+3

Therefore,

-5e=30

Therefore,

e=30/-5

Therefore,

e=-6

4 0
3 years ago
Read 2 more answers
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