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Alexxx [7]
3 years ago
11

Can somebody help this is due in an hour

Mathematics
2 answers:
STALIN [3.7K]3 years ago
5 0
18x-16y=5
Subtract 18x from each side
-16y=-18x+5
Divide by -16
y=18/16x-5/16

y=9/8x-5/16 this one is with improper fractions
Nana76 [90]3 years ago
3 0

Answer:

\large\boxed{y=\dfrac{9}{8}x-\dfrac{5}{16}}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept</em>

<em />

We have the equation of a line in the standard form (Ax + By = C).

Convert it to the slope-intercept form:

18x-16y=5          <em>subtract 18x from both sides</em>

[tex[18x-18x-16y=-18x+5[/tex]

-16y=-18x+5          <em>divide both sides by (-16)</em>

\dfrac{-16y}{-16}=\dfrac{-18x}{-16}+\dfrac{5}{-16}\\\\y=\dfrac{18:2}{16:2}x-\dfrac{5}{16}\\\\y=\dfrac{9}{8}x-\dfrac{5}{16}

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This year’s school population in Waterloo is 135 percent of last year’s school population. This year’s student population is 756
sp2606 [1]

Answer:560

Step-by-step explanation:

Let a be the number of students the school have last year

135% of a=756

135/100 x a=756

135a/100=756

Cross multiplying we get

135a=756 x100

135a=75600

Divide both sides by 135

135a/135=75600/135

a=560

6 0
2 years ago
Solve the system of equations 3x = 84 - 2y 9x = 8y - 24
Eduardwww [97]

Answer:

3x = 84 - 2y -  -  - (i) \\ 9x = 8y - 24 -  -  -  - (ii) \\ from \: (ii) \\ 3(3x) = 8y - 24 \\ but \: from \: (i) \:  \: 3x = 84 - 2y \\ hence \: put \: (i) \: in \: (ii) \\ 3(84 - 2y) = 8y - 24 \\ 252 - 6y = 8y - 24 \\ 276 = 14y \\ y =  \frac{138}{7}  \\ x =  \frac{104}{7}

8 0
2 years ago
May someone help me out with this question please
mario62 [17]

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8 0
3 years ago
2 trains leave the station at the same time. Train A is traveling 16 miles slower than train B. The two trains are 720 miles apa
Ber [7]

Answer: the rate of speed for train A is 66 miles per hour.

Step-by-step explanation:

Let x represent the speed of train B.

2 trains leave the station at the same time. Train A is traveling 16 miles per hour slower than train B. This means that the speed of train A would be x - 16 miles per hour.

The two trains are 720 miles apart after 4 hours. It means that both trains traveled a total distance of 720 miles in 4 hours.

Distance = speed × time

Distance travelled by train A after 4 hours is

4(x - 16) = 4x - 64

Distance travelled by train B after 4 hours is

4 × x = 4x

Since the total distance travelled by both trains is 720 miles, then

4x - 64 + 4x = 720

8x = 720 - 64 = 656

x = 656/8 = 82 miles per hour

The speed of train A would be

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6 0
2 years ago
Select the letter that correctly identifies the base of the prism.
Radda [10]

Answer:

I think it's C, I may be wrong though

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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