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d1i1m1o1n [39]
3 years ago
11

Vera

Mathematics
2 answers:
Maurinko [17]3 years ago
6 0
2/5 of 100 would be 40%
1/9 an hour would be 1/9 x 40 % = 4.44% every hour
Total hours left would be 40% / 4.44%= 9.0009 = 9 hours
lidiya [134]3 years ago
4 0

Answer:

18/5 hours

Step-by-step explanation:

If Vera's phone has a battery life of 2/5 and it drains 1/9 every hour we can determine how much per hour her battery drains.

f the battery drains 1/9 per hour we know how much it drains per hour. To get the time is takes for 2/5 battery life to drain we can say 2/5 divided by 1/9.

=(2/5)/(1/9)=(2/5)*(9/1)

We have 5 and 1 at the bottom of the line  and 9 and 2 at the top of the line. We can simplify:

=18/5

It takes 18/5 hours for Vera's battery to last

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Answer:

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Jenna starts with $50 and she sells her homemade cookies for $2 each. Elijah starts with $32 and he sells his homemade cookies f
GuDViN [60]

Answer:

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Step-by-step explanation:

Add 6 to 32

6 0
3 years ago
On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 3, negative 7) and (0, 2). Everyth
crimeas [40]

The inequality described can be written as:

y < 3x + 2.

<h3>How to get the inequality?</h3>

First, we know that we have a dashed line, and the region to the left of that line is shaded, then we will have:

y < line.

The linear equation is of the form:

y = a*x + b

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Remember that if a line passes through the points (x₁, y₁) and (x₂, y₂), then the slope is:

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Here we know that the line passes through (-3, -7) and (0, 2), so the slope is:

a = \frac{2 - (-7)}{0 - (-3)} = 9/3 = 3

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y < 3x + 2.

If you want to learn more about inequalities:

brainly.com/question/2516147

#SPJ1

8 0
2 years ago
A printer takes 5mins to print 90 copies of a repor. At this rate, how many copies of the same report can it print in 1/2 hours
just olya [345]
I think it could print 540???
4 0
3 years ago
What is the formula for the area of an oblique triangle?
miv72 [106K]

To find the area of an oblique triangle there are different formulae. The first formula to calculate the area of a triangle is area A = (1/2) * a * b * Sin(C), where a and b are the lengths of the two sides of the triangle and C is the value of the angle of the triangle that lies in between the two sides a, b.

4 0
3 years ago
Read 2 more answers
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