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hodyreva [135]
3 years ago
6

FIRST ANSWER IS BRAINLIEST IF CORRECT!!!A new clothing store had expenses of $60,000 for designing and building the shelves and

counters and $140,000 for the first year's inventory. So far this year, the store has sales of $80,000. What do the sales for the rest of the year have to be for the store to break even? A. $60,000 B. $200,000 C. $120,000 D. $140,000
Mathematics
1 answer:
Mandarinka [93]3 years ago
4 0
I Believe the answer is C. $ 120,000
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Zero pairs are basically 2 numbers that add up to zero like -1 +1 = 0 they cancel each other out. By assigning tiles to represent each number, you can cancel out the zero pairs and the remaining tiles will represent the sum or difference of the numbers.

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3 years ago
Which is steeper: a road with a 12% grade or a road with a pitch of 1 in 8?
11Alexandr11 [23.1K]

Answer:

A road with a pitch of 1 in 8 is steeper.

Step-by-step explanation:

Let us convert these to the same units so that we can better compare them.

\frac{1}{8} = 0.125

0.125=12.5 %

As 12.5% is greater than 12%, the road with a pitch of 1 in 8 will be steeper.

7 0
4 years ago
Find the measure of angle x in the figure below: A triangle is shown. At the top vertex of the triangle is a horizontal line ali
vaieri [72.5K]
Okay, I think I understand.

Straight lines have a measure of 180°, so
52° + 59° + y = 180°
y = 69°

The measure of the inner angles of a polygon = (n - 2)180° where n is the number of sides. The shape is a triangle, so n = 3.
(3 - 2)180° = 63° + y + x
180° - 63° - (69°) = x

x = 48°
6 0
3 years ago
Read 2 more answers
30 children are going on a trip it cost £5 including lunch some children take their own packed lunch they pay only £3 the 30 chi
nikitadnepr [17]
No enough info
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7 0
4 years ago
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The height, h, in feet of the tip of the hour hand of a wall clock varies from 9 feet to 10 feet. Which of the following equatio
AnnZ [28]

The motion of the hour hand of a clock is a periodic motion that repeats every 12 hours.

  • The equation that can be used to models the height as a function of time, based on the given options, is presented as follows; \displaystyle \underline{ H = 0.5 \cdot cos \left(\frac{\pi}{6} \cdot t \right) + 9.5}

Reasons:

The given parameters are;

The variation of the height of the tip of the hour hand = 9 feet to 10 feet

At t = 0, the time = 12.00 a.m.

Required: The equation that can be used to model the height as a function of time.

Solution:

The general form of the cosine function is presented as follows;

y = a·cos(b·x - c) + d

The amplitude = a

\displaystyle a  = \mathbf{ \frac{Maximum \ value -Minimum \ value}{2}}

Therefore;

\displaystyle a  = \frac{10 -9}{2} = 0.5

b = The cycle speed

The period, T, is given as follows;

\displaystyle T = \mathbf{ \frac{2 \cdot \pi}{b}}

The period of a block, T = 12 hours

Therefore;

\displaystyle b = \frac{2 \cdot \pi}{T}

\displaystyle b = \frac{2 \cdot \pi}{12} = \mathbf{ \frac{ \pi}{6}}

\displaystyle d  = \mathbf{ \frac{Maximum \ value +Minimum \ value}{2} = \frac{10 + 9 }{2}} = 9.5

At t = 0, H = The highest point = 10 ft.

Which gives;

\displaystyle H = \mathbf{0.5 \cdot cos \left(\frac{\pi}{6} \times 0  -c\right) + 9.5} = 10

\displaystyle  cos \left( -c\right)  = \frac{0.5}{0.5}  = 1

-c = arcos(1) = 0

-c = 0

c = 0

The equation is therefore;

\displaystyle H = \mathbf{0.5 \cdot cos \left(\frac{\pi}{6} \cdot t \right) + 9.5}

The above equation is the same as; <u>H = 0.5cosine (StartFraction pi Over 6 EndFraction t) + 9.5</u>

Learn more about the cosine function here:

brainly.com/question/4458343

brainly.com/question/24368105

4 0
3 years ago
Read 2 more answers
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