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4 years ago

3x+1/5y=7 solve for y.

1 answer:

5 0

Greetings!

"Solve for y: $3x+1/5y=7$ "...

Add -1/5y to both sides.
$(3x+1/5y)+(-1/5y)=(7)+(-1/5y)$
Simplify.
$3x=7-1/5y$
Divide both sides by 3.
$(3x)/3=(7-1/5y)/3$
Simplify.
$x=(7-1/5y)*1/3$
$x=7/3-1/15y$

Hope this helps.
-Benjamin

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The length of a rectangular garden is 7 feet longer than its width. If the garden’s perimeter is 178 feet what is the area of th

andrey2020 [161]

Answer:1968ft^2

Step-by-step explanation:

Perimeter(p)=178feet

P=2L+2w

178=2L+2w

178=2(L+w)

L+w=178 ➗ 2

L+w=89.............(1)

W+7=L

L-w=7...................(11)

L+w=89... ..........(1)

L-w=7...................(11)

Subtract (11) from (1)

2w=89-7

2w=82

w=82 ➗ 2

w=41 width=41feet

Substitute w=41 in (11)

L-w=7

L-41=7

L=7+41

L=48feet

Area= length x width

Area=48 x 41

Area=1968ft^2

8 0

3 years ago

What is the measure of angle F?

ololo11 [35]

Answer:

Answer = 140

Step-by-step explanation:

360 = 9x + 14x + 4x + 90

360 - 90 = 27x
270 = 27x
x = 270 / 27
x = 10
14 x 10 Angle F

Measure of angle F = 140

6 0

2 years ago

Read 2 more answers

If you have 2 millionaire dollars and 5 Million and you give your whole family how much is that.

Andrej [43]

So it depend's how much if you have 2million dollars and 5million dollars you have 7 million dollars.

So if you have 7 family member divde 7 million by 7 then you'll get 1 million so everyone get's 1 million

6 0

3 years ago

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HELP ASAP will give brainliest

Natalka [10]

Average rate of change is 0

Interpretation: The crop yield did not change from year 5 to year 15

Solution:

The function that models the yield is:

$f(x) = -x^2 + 20x + 75$

The average rate of change of f(x) from x = a to x = b is given by the formula:

$\text{ average rate of change }=\frac{f(b)-f(a)}{b-a}$

Find and interpret the average rate of change from year 5 to year 15

$f(5) = -(5)^2 + 20(5) + 75\\\\f(5) = -25 + 100 + 75\\\\f(5) = 150$

$f(15) = - (15)^2 + 20(15) + 75\\\\f(15) = -225 + 300 + 75\\\\f(15) = 150$

Thus average rate of change:

$\text {average rate of change}=\frac{f(15)-f(5)}{15-5}$

$\text {average rate of change}=\frac{150-150}{10}=0$

Thus Average rate of change is 0

Interpretation: The crop yield did not change from year 5 to year 15.

7 0

3 years ago

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10pts and I’ll mark brainliest! (Also EXPLAIN the reasoning you used to write the expression)

Veseljchak [2.6K]

9514 1404 393

Answer:

area = x(3x +10)

Step-by-step explanation:

The lengths of the unmarked sides are found as the difference between the lengths of the parallel marked sides.

horizontal unmarked = (2x+15) -x = x +15

vertical unmarked = (2x -5) -(x -5) = x

The area of the figure is the sum of the areas of parts of the figure. The area can be divided several ways. One is shown in the attachment, along with the areas of the parts and of the whole.

The whole area is ...

x(2x -5) +x(x +15) = x((2x -5) +(x +15)) = x(2x -5 +x +15) = x(3x +10)

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3 years ago