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3 years ago

7

Mara and Taylor need to rent a car for 6 days. If the cost of the car is $105 for each day, which of the following expressions c

ould they use to figure out the total cost?
a. 6(100)-6(5)
b. 6(110)+6(5)
c. 6(100)+6(5)

1 answer:

olga2289 [7]3 years ago

3 0

Answer:

c

Step-by-step explanation:

100+5 =105

105 per day

6(105)=6(100)+6(5)

They both have the same answer: 630 as the total cost.

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kvv77 [185]

Answer:

24 bracelets can be made from given beads.

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2 years ago

3. URGENT HELP!!

denis23 [38]

3a)
Equation of a line formula: y - y₁ = m(x - x₁)
x₁ and y₁ are coordinates of one point on the line
m is the gradient of the line
m = Δy/Δx = (y₂ - y₁)/(x₂ - x₁)
If we say:
(x₁, y₁) = (0, -1)
(x₂, y₂) = (2, 3)
then:
m = (3 - -1)/(2 - 0)
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So, the equation of the line is (using the formula):
y - -1 = 2(x - 0)
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3b)
Any two given lines will always intersect unless they have the same gradient, i.e. they are parallel;
So, to determine if the two lines will intersect all we have to do is work out the gradient of the second line and see if it is the same as the the gradient of the first (which we worked out to be 2) or not;
So, for the second line:
(x₁, y₁) = (-3, 3)
(x₂, y₂) = (-2, 4)
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The gradients of the two lines are not the same;
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4a)
|| Male || Female
0 ≤ x ≤ 1 || 66 || 2
2 ≤ x ≤ 7 || 583 || 160
8 ≤ x || 89 || 42
Total 738 204
x = number of times a day hand are washed

4b)
66/738 × 100 = 8.94..... ⇒ 9%
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On average, it appears that females tend to wash their hands more frequently;
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Step-by-step explanation:

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