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prisoha [69]
3 years ago
6

BILL CAN HAMMER 20 NAILS IN 6 MINUTES. JEFF CAN DO THE SAME JOB IN ONLY 5 MINUTES. HOW LONG WILL IT TAKE THEM TO FINNISH IF BILL

HAMMERS THE FIRST 5 NAILS, THEN JEFF HAMMERS FOR 3 MINUTES, THEN BILL FINISHES THE JOB?
Mathematics
1 answer:
uysha [10]3 years ago
4 0
It would take 4:30 minutes
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Cara has $25 to buy dry pet food and treats for the animal shelter. A pound of dog food cost $2 and treats are $1 apiece. If she
nordsb [41]
<span>If dog food costs $2 a pound and Cara buys 9 pounds, her expenditure on dog food is 9 x 2. This makes $18. If she has a total budget of $25 and spends $18 on dog food, she has $7 left over for treats (25 - 18 = 7). At $1 each, she can buy up to 7 treats.</span>
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3 years ago
Find the slope of the line that passes through (4,2) and (9,1)?
pshichka [43]

Answer:

The slope of the line is \displaystyle -\frac{1}{5}.

Step-by-step explanation:

We are given two coordinate points:

  • (4, 2)
  • (9, 1)

We are asked to find the slope of the line.

We can use the rise-over-run formula to solve for the slope of the line.

\displaystyle \text{slope} = \frac{\text{rise}}{\text{run}}\\\\\text{slope} = \frac{y_2-y_1}{x_2-x_1}

However, we firstly need to name our coordinate points.

In math, we can label our coordinates using the following label system:

(x_1, y_1), (x_2, y_2)

Therefore, we can also label our coordinates as such:

  • x_1 = 4
  • y_1 = 2
  • x_2 = 9
  • y_2 = 1

Now, we can supply these values into the formula and solve for our slope, or a better known variable, <em>m</em>.

\displaystyle m = \frac{1 - 2}{9 - 4}\\\\m = \frac{-1}{5}\\\\m = -\frac{1}{5}

Therefore, our slope is \displaystyle -\frac{1}{5}.

8 0
3 years ago
Read 2 more answers
Can someone help me on this
Keith_Richards [23]

Answer:

39V3 Sq.units of that will help you

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110$ for 16ft find the unit rate ​
Neporo4naja [7]

Answer:

6.875 dollars per feet

Step-by-step explanation:

110/16

6.875

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3 years ago
Write the sum in standard form <br><br> B) f(x)-h(x)
VLD [36.1K]

Answer:

Step-by-step explanation:

f(x) -h(x) = x³ + 2x² -7x - 8 - [4x² - x - 15 ]

             = x³ + 2x² - 7x - 8 - 4x² + x + 15

              = x³ + 2x² - 4x² - 7x + x - 8 + 15

              = x³ - 2x² - 6x + 7

8 0
3 years ago
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