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2 years ago

6

Write the equation in standard form. 3x−9=7y

1 answer:

Karo-lina-s [1.5K]2 years ago

5 0

3x-7y = 9
Standard form is Ax+By = C

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Please help me with this question :)

just olya [345]

Answer:

3rd option.

Step-by-step explanation:

$\frac{2|k|}{5}$ = 4

move 5 to the other side of the equation.

2|k| = 5(4)

2|k| = 20

move 2 to the other side of the equation.

|k| = $\frac{20}{2}$

k = 10

8 0

2 years ago

Stephen and Diana are traveling towards each other from points that are 276 miles apart. If Diana is traveling 4 mph faster than

Allisa [31]

Answer:

Step-by-step explanation:

let speed of Stephen=x mph

speed of Diana=x+4

then

6x+6(x+4)=276

divide by 6

x+x+4=276/6=46

2x=46-4=42

x=42/2=21

Stephen is traveling at 21 mph.

Diana is traveling at 21+4=25 mph.

6 0

2 years ago

If i read 60 pages in 1 5/12 hours how long will it take me to read 120 pages

zysi [14]

Answer:

Step-by-step explanation:

Direct proportion

60: 1 5 /12 = 120 : x

60: 17/12 = 120:x

Product of extremes = product of mean

60*x = (17/2)*120

$60*x=\frac{17}{12}*120\\\\60*x=17*10\\\\x=\frac{17*10}{60}\\\\x=\frac{17}{6}\\\\x=2\frac{5}{6}$

It will take 2 5/6 hours to read 120 pages

8 0

2 years ago

The table shows the number of pages a student reads and how many

dolphi86 [110]

Answer:

the unit rate is 2.25

Step-by-step explanation:

4×2.25=9.0

6×2.25=13.5

8×2.25=18.0

5 0

2 years ago

:what does this problem solve as<br> 1/2(4x−5)+52=10

sashaice [31]

I'm pretty sure its x=<span><span>−79/</span><span>4

</span></span>

6 0

2 years ago