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sladkih [1.3K]
3 years ago
10

A plumber charges an initial amount,x, to make a house call plus an hourly rate,y, for the time he is working.A 1-hour job costs

$90 and a 3-hour job cost $210
Mathematics
1 answer:
Inessa05 [86]3 years ago
5 0
X=$30
y=$60

1 hour job- 60x1=60+30=90
3 hour job-60x3=180+30=210
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One gallon is equal to about 3.785 liters. What is this amount rounded to the nearest tenth? To the nearest hundredth? Show your
Leokris [45]

Answer:

3.8 ; 3.79 ; 3

Step-by-step explanation:

Given that:

1 gallon is equal to about 3.785 litres

3.785 to the nearest tenth :

Tenth digit = 7 ; round up 8 to 1 and add to 7

Hence,

3.785 = 3.8 (nearest tenth)

3.785 to the nearest hundredth :

Hundredth digit = 8 ; round up next digit 5 to 1 and add to 8

3.785 = 3.79 ( nearest hundredth)

What is the greatest number of whole liters of water you could pour into a one-gallon container without it overflowing?

The greatest Number of whole liters of water that could be poured into a 1 gallon container without it overflowing is 3 liters because, rounding up 3.785 to the nearest integer of 4 means we will exceed the maximum litres by about 0.215 gallons and hence, cause the container to overflow.

3 0
3 years ago
X+6y=28, solve for y
m_a_m_a [10]

Answer:

y = -\frac{x}{6} + \frac{14}{3}

Step-by-step explanation:

So when you're solving for y you want to get y by it self meaning there should be nothing with y, including any coefficients. The first step is to usually move any terms to the other side and then divide by the coefficient of y so y "technically doesn't" have a coefficient, while it does, but that coefficient 1, so it doesn't really mean much.

Subtract x from both sides

6y = -x+28

Divide both sides by 6

y = -\frac{x}{6} + \frac{14}{3}

5 0
2 years ago
Read 2 more answers
Does anyone know how to do this ?
erastovalidia [21]

Answer:

130 is not measure of the triangle .

Step-by-step explanation:

because angles are 65० ,75०,40० .

and 130 is not possible sum of any adjacent sides of triangle

4 0
3 years ago
ILL GIVE BRAINIEST find the solption for each system of equations using substitution. check ur solution in both original equatio
Verizon [17]

Answer:

X= 2

y = 2

Step-by-step explanation:

y=-2x+6............... equation 1

y=3x-4................... equation 2

from equation 2

y=3x-4

substitute y=3x-4 in equation 1

3x-4=-2x+6

collect like terms

3x+2x=6+4

5x=10

divide both sides by 5

X=2

substitute X=2 in equation 1

y=-2x+6

y=-2(2)+6

y=-4+6

y=2

hope it helps

4 0
3 years ago
Find the area of the following shape. You must show all work to receive credit.
djverab [1.8K]

Answer:

54

Step-by-step explanation:

This can be divided into triangle ABF and trapezoid BCDE.

A = A₁ + A₂

A = ½ (10) (3) + ½ (6 + 7) (6)

A = 15 + 39

A = 54

The area is 54 square units.

8 0
3 years ago
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