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timurjin [86]
3 years ago
11

A carpenter estimates it will take 54 person-hours to build an addition on a house. How long will it take if 3 people work toget

her?​
Mathematics
1 answer:
user100 [1]3 years ago
7 0

Answer:

18 hours

Step-by-step explanation:

54hours divides by 3people equals 18hours

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Two players, Fredo and Karl, on different teams wanted to find out who scored the higher number of points when compared to the o
dalvyx [7]
A. Karl

Karl has an average of 104 and Fredo only has an average of 99.6
5 0
3 years ago
Margo can purchase tile at a store for $0.89 per tile and rent a tile saw for $45. At another store she can borrow the tile saw
umka21 [38]

Answer:

She must buy 90 tiles for the cost to be the same at both stores

Step-by-step explanation:

Let x be the no. of tiles bought for the cost to be the same at both stores

Margo can purchase tile at a store for $0.89 per tile at shop 1

Cost of x tiles =0.89x

She rent a tile saw for $45.

So, total cost at Store 1 = 0.89x+45

At another store she can borrow the tile saw for free if she buys tiles there for $1.39 per tile.

So, cost of 1 tile = 1.39

Cost of x tiles = 1.39x

ATQ

0.89x+45=1.39x

45=1.39x-0.89x

45=0.5x

\frac{45}{0.5}=x

90=x

Hence She must buy 90 tiles for the cost to be the same at both stores

3 0
3 years ago
Write a equation of a hyperbola given the foci and the asymptotes
professor190 [17]

Solution:

The standard equation of a hyperbola is expressed as

\begin{gathered} \frac{(x-h)^2}{a^2}-\frac{(y-k)^2}{b^2}=1\text{ \lparen parallel to the x-axis\rparen} \\ \frac{(y-k)^2}{a^2}-\frac{(x-h)^2}{b^2}=1\text{ \lparen parallel to the y-axis\rparen} \end{gathered}

Given that the hyperbola has its foci at (0,-15) and (0, 15), this implies that the hyperbola is parallel to the y-axis.

Thus, the equation will be expressed in the form:

\frac{(y-k)^2}{a^2}-\frac{(x-h)^2}{b^2}=1\text{ ----equation 1}

The asymptote of n hyperbola is expressed as

y=\pm\frac{a}{b}(x-h)+k

Given that the asymptotes are

y=\frac{3}{4}x\text{ and y=-}\frac{3}{4}x

This implies that

a=3,\text{ and b=4}

To evaluate the value of h and k,

undefined

3 0
1 year ago
Find the sum of interior angles of 13-sided polygon.
cupoosta [38]

Answer:

N=13

Step-by-step explanation:

For a pentagon, it's (5-2)180=(3)180=540 degrees. So plug in n=13 to see the sum of the angle measures for a 13-sided polygon.

4 0
3 years ago
TRUE or FALSE
kupik [55]

Answer:

True

Step-by-step explanation:

~Is SAA side-angle-angle

8 0
3 years ago
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