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3 years ago

A plumber charges a $5 fee plus $12 per hour for labor. Which equation models the total cost

Mathematics

1 answer:

olchik [2.2K]3 years ago

7 0

Answer: y = 12x + 5

Step-by-step explanation:

Since the going rate is $12/hr, that will be the x coefficient. Since the starting fee is $5, that will be the y-intercept.

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Expand and simplify 3(2a+5)+5(a-2)

Wittaler [7]

Step 1 (3* (2a+5)) + 5 *(a-2)
Step 2 <span>3 • (2a + 5) + 5 • (a - 2)
</span>Step 3 final result and your anwser
11a+5
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3 0

3 years ago

Read 2 more answers

Leo's bank balances at the end of months 1, 2, and 3 are $1500, $1530, and $1560.60,

grandymaker [24]

Leo's balance after 9 months will be: $1757.49

Step-by-step explanation:

It is given that the balances follow a geometric sequence

First of all, we have to find the common ratio

Here

$a_1 = 1500\\a_2 = 1530\\a_3 = 1560.60$

Common ratio is:

$r = \frac{a_2}{a_1} = \frac{1530}{1500} = 1.02\\r = \frac{a_3}{a_2} = \frac{1560.60}{1530} = 1.02$

So r = 1.02

The general form for geometric sequence is:

$a_n = a_1r^{n-1}$

Putting the first term and r

$a_n = 1500 . (1.02)^{n-1}$

To find the 9th month's balance

Putting n=9

$a_9 = 1500 . (1.02)^{9-1}\\= 1500.(1.02)^8\\=1757.4890$

Rounding off to nearest hundredth

$1757.49

Hence,

Leo's balance after 9 months will be: $1757.49

Keywords: Geometric sequence, balance

Learn more about geometric sequence at:

#LearnwithBrainly

5 0

3 years ago

Jami covered the lateral faces the

IgorLugansk [536]

Answer:

304

Step-by-step explanation:

find the area of each side, then add together

top and bottom are 10*8= 80 80*2= 160

front and back are 10*4=40 40*2=80

left and right sides are 8*4=32 32*2=64

160+80+64=304

5 0

2 years ago

(Solve and write addition Equations) Zacarias and Paz together have $756.80. If Zacarias has $489.50, how much does Paz have? Wr

serious [3.7K]

$489.50+x=$756.80

x=amount paz has.

756.80-489.50 = 267.3

so Paz has $267.30

4 0

3 years ago

Read 2 more answers

Can someone please help with this maths !!!!!

ioda

Answer:

C) -3

Step-by-step explanation:

Rearrange your equation so that it is in slope-intercept form (y = mx + b). The m in the equation is the gradient.

y = 7 - 3x

y = -3x + 7

The m-value is -3. This means that the gradient is -3.

7 0

3 years ago

Read 2 more answers