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Irina-Kira [14]
2 years ago
5

Janice and her dad are building a treehouse. Her dad bought a box of 155 nails for $3.10 and a box of 85 screws for $7.65. How m

uch more do screws cost per piece?
Mathematics
2 answers:
olga2289 [7]2 years ago
8 0
.07 cents more for screws
Degger [83]2 years ago
7 0
3.10/155= 0.02 } subtract = 0.07 more
7.65/85= 0.09 }
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Given p ≠ q ≠ 0, what is the equation of the line that passes through the points (–p, –q) and (p, q)?
liubo4ka [24]
Hey :))

(-p,-q)(p,q)slope = (q - (-q) / (p - (-p) = (q + q) / (p + p) = 2q / 2p = q/p
y = mx + b.....slope(m) = q/p(p,q)...x = p and y = qnow we sub and find b, the y intq = (q/p)(p) + bq = q + bq - q = b0 = b
so ur equation is : y = (q/p)x + 0...or just y = (q/p)x....its answer B
HOPE THIS HELPED!!!  :))
7 0
2 years ago
Read 2 more answers
Zach uses his car for business and must keep accurate driving records so that his company will reimburse him for car expenses. W
Phoenix [80]
His end mileage minus his starting mileage will give us the total number of miles he traveled.  28017-26645=1372 miles traveled.
We can divide that by his average mpg to figure out how many gallons of gas he bought:
1372/48 = 28.583 gallons.
Now divide the amount he paid by this to get the price per gallon:
62.28/28.583 = $2.179 per gallon of gas.
7 0
2 years ago
At the start of 2014, Mike's car is worth 12000. the car depreciates by 30 percent every year. how much is his car worth in 2017
Anarel [89]

Answer:

$4,116

Step-by-step explanation:

Worth of Mike's car at the start of 2014 = $12,000

If the car is said to depreciates every year by 30% = 30/100 = 0.3

The worth of the car at the start of 2017 is what we are to determine.

This means that the car depreciated by 30% (0.3) for 3 years since 2014 (2017 - 2014 = 3 yrs)

The worth at the start of 2017 would be calculated as follows:

12,000 × (1 - 0.3)³

= 12,000 × (0.7)³

= 12,000 × 0.343

= 4,116

Worth of the car at the start of 2017 would be $4,116

4 0
2 years ago
One catcher's mitt and 10 outfielder's gloves cost $239.50. How much does each item cost if 1 catcher's mitt and 5 outfielder's gl
seraphim [82]
Make an equation for each statement with x being catcher's mitts and y being outfielder's gloves.

x + 10y = 239.50       and        x + 5y = 134.50

Multiply the second equation through by -1 giving -x - 5y = -134.50

Combine the equations vertically

 x + 10y = 239.50
-x   - 5y = -134.50

giving

5y = 105
y = 21

Now substitute for y:
x + 10(21) = 239.50
x + 210 = 239.50
x = 29.50

Thus, Catchers mitts $29.50 and outfielder's gloves are $21
3 0
2 years ago
Elena is feeding her neighbor's dogs each dog gets two thirds cup of dog food and she uses three and one third cups of food how
MrRa [10]

Answer:

Total number of dogs is 5.

Step-by-step explanation:

Cups of food each dog gets=\frac{2}{3}

Here,each dog eats two-third cups of dog food.

Amount of dog food used=\frac{10}{3}

A total of three and one-third cups of food is used up.

Let the number of dogs be x.

To find the number of dogs,divide total dog food used by the amount of dog food eaten by each dog.

Hence,  x  =\frac{\frac{10}{3} }{\frac{2}{3} }

              x  =\frac{10}{2}

               x  =5

5 0
2 years ago
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