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zhenek [66]
3 years ago
10

15z-7=14z+12 What does Z equal​

Mathematics
1 answer:
Anika [276]3 years ago
8 0

Answer:

19

Step-by-step explanation:

15z-14z=12+7

z=19

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The drain in your 45-gallon bathtub is partially clogged, but you need to take a shower. The shower head had a flow rate of 2.25
Helen [10]

Answer:

Time = 1.978\ min

Step-by-step explanation:

Given

R_1 = 2.25\ gal/min --- Flow rate of the shower

R_2 = 20.5\ gal/min --- Drain rate of the bathtub

Size = 45gal -- Bathtub size

Required

Determine the maximum time of shower

First, we calculate the rate at which the bathtub fills.

R_3 = R_1 + R_2

R_3 = 2.25 + 20.5

R_3 = 22.75gal/min

The maximum time of shower is:

Time = \frac{Size}{R_3}

Time = \frac{45gal}{22.75gal/min}

Time = 1.978\ min  

6 0
3 years ago
I don't know this can someone help me?
Gemiola [76]

Answer:

513.247

Step-by-step explanation:

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3 years ago
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Mia surveyed a random sample of 20 students in class. Of those 20 students, 14 said they would vote for Dreyfus. What students i
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4 years ago
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a retiree invests $1240 for 3.5 years in a savings plan that pays a simple interest of 2.1% per year. How much interest will be
attashe74 [19]

Answer:



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I=Prt

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4 0
3 years ago
2y = x + 3
aksik [14]

Answer:

Solution:  { -29/3 , -10/3 }

Step-by-step explanation:

2y = x + 3  ---------> equ 1

5y = x - 7    equ 2

equ 1 - equ s  ====>     -3y = 10

                                         y =  -10/3

Put y = -10/3 in equ 1

        2 * (-10/3)   = x + 3

         -20/3         = x + 3

          (-20/3) - 3   = x

        (-20/3) - (9/3)  = x

         (-20 - 9) / 3    =x

                x = -29/3

Solution:  { -29/3 , -10/3 }

3 0
4 years ago
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