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Alik [6]
3 years ago
13

Someone help me please with this algebra problem

Mathematics
1 answer:
Ann [662]3 years ago
3 0

Answer:

7 in.

Step-by-step explanation:

2L + 2W = 16

Try L = 7

2(7) + 2W = 16

14 + 2W = 16

2W = 2

W = 1

If the length is 7 in., then the width is 1 in. That is perfectly acceptable, so L = 7 in. is a good value.

Try L = 8

2(8) + 2W = 16

16 + 2W = 16

2W = 0

W = 0

A length of 8 would make a width of 0. You can't have a rectangle with 0 width, so L = 8 does not work.

When L = 9 or L = 10, the width would be negative. The width of a rectangle cannot be a negative number, so these values doe not work.

Answer: 7 in.

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Percentage of the different pet people own:
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Answer:

The answer should be 120.

Step-by-step explanation:

30% of 400 = 120 cats

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3 years ago
which equation represents the line that passes through the point (-2,2) and is parallel to y=1/2x + 8
Nataliya [291]
The first thing is the slope
y = 1/2 x + b is the new line. Now we must solve for b
2 = 1/2 (-2) + b
2 = -1 + b
3 = b
The new line is 
y = 1/2 x +3
5 0
3 years ago
Find the surface area! Please I need it quick
zloy xaker [14]

Step-by-step explanation:

<h2>We first find the area of a trapezium and rectangular face</h2><h2>Fourmula to find the are of a trapezium is:</h2><h3>Area=1/2*(B+b)*h</h3><h3> =1/2*3.7*1.9</h3><h3> =3.515m²</h3><h2 /><h2>Since every rectangular face is different we gotta find each of them</h2>

<h3>Area1=4.8*2.1</h3><h3> =10.08 m²</h3><h3>Area2=4.8*1.4=6.72m²</h3><h3>Area3=4.8*2.3=11.05m²</h3><h3>Area4=4.8*1.9=9.12m²</h3>

<h3 /><h3>Now we find the area of the whole prism</h3><h3>Area=3.515*2+10.08+6.72+11.05+9.12</h3><h3>Area=44m²</h3>

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7 0
3 years ago
Whats the slope form?
Furkat [3]

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4 0
3 years ago
Read 2 more answers
“ write the equation of the line that goes through the point (6,3) and is parallel to y=-2/3x+5 “ ????
brilliants [131]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{2}{3} x + 5 ← is in slope- intercept form

with slope m = - \frac{2}{3}

Parallel lines have equal slopes, thus

y = - \frac{2}{3} x + c ← is the partial equation of the line

To find c substitute (6, 3) into the partial equation

3 = - 4 + c ⇒ c = 3 + 4 = 7

y = - \frac{2}{3} x + 7 ← equation of line

5 0
3 years ago
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