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Annette [7]
3 years ago
5

Cody notices that for every 2 evergreen trees on the school campus there are 7 other trees. If there are a total of 99 trees on

the campus how many of them are not evergreen
Mathematics
1 answer:
Levart [38]3 years ago
8 0

Answer:

77

Step-by-step explanation:

For each 2 evergreens there are 7 other trees.

Add 2 +7 = 9.

For each 7 non-evergreens there are 9 trees of all types.

The ratio of non-evergreens to total trees is 7/9.

Let x = number of non-evergreens.

7/9 = x/99

9x = 7 * 99

Divide both sides by 9.

x = 7 * 11

x = 77

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Answer:

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5 0
4 years ago
Write the equation of a line that is perpendicular to y=-0.3x+6 and that passes through the point (3,-8)
MariettaO [177]
Hey there!

First, let's look at what perpendicular means. Imagine a cross, where there's all 90 degree angles. That's exactly what we're talking about when we say perpendicular. The given equation is in slope-intercept form, where we have:

y = mx + b
where m is the slope and b is the y-intercept.

When we're writing an equation with a perpendicular slope, we use the negative reciprocal of the given slope. Thus, we can make 0.3 1/3, and take the reciprocal to make 3, and make it negative 3 as it's the negative reciprocal. Now, we know we have a line with the slope of -3 and goes through (-3, 8). We can use the x and y values in this set of points, along with the slope, to create an equation to solve for b. That gives us:

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5 0
3 years ago
Read 2 more answers
Factor: 2x^2-3x-20=0
Anon25 [30]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Can somebody pretty please help me please
Basile [38]

9514 1404 393

Answer:

  A.  $4006

Step-by-step explanation:

The total tax due is the sum of the amounts due in each applicable bracket.

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<em>Additional comment</em>

There are easier ways to compute the tax, but this is the way shown on many tax forms.

7 0
3 years ago
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iogann1982 [59]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
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