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gogolik [260]
3 years ago
6

You buy five books that are equal in

Mathematics
1 answer:
Vinil7 [7]3 years ago
7 0

Answer:

$3.50

Step-by-step explanation:

$17.50/5 = $3.50. This means the cost of one book is $3.50.

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a rectangular container measuring 20 cm by 15 cm by 12 cm is 2/3 filled with water . Find the volume of the water in liters.
Free_Kalibri [48]

Answer:

2.4 litres

Step-by-step explanation:

volume of a rectangular container = length x breadth x height/depth

volume of the rectangular container = 20cm x 12cm x 15cm

= 3600 cm³

volume filled with water = 2/3 x 3600 =2,400cm³

1000cm³ = 1 litre

therefore 2,400cm³ = 2400/1000 = 2.4 litres

6 0
4 years ago
Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
frosja888 [35]

Answer:

7x + 2y = 1

Step-by-step explanation:

1. Find the slope of the line.

(y2-y1)/(x2-x1) ---->  (11 - (-3))/((-3) -1) ----> (11+3)/ (-3 -1) ----> 14/-4

*lets simplify into (7/-2)*

2. Write into slope intercept form.

y=mx+b (m is the slope) (b is the y intercept)

y = (7/-2)x + b

We now need to find the value of b, this can be done by plugging in values of x and y, and using algebra to solve.

11 = (7/-2)(-3) + b

11 = 10.5 + b

b = 0.5 or 1/2

slope intercept form y = (7/-2)x + 1/2

Now we convert to standard form: ax+by=c

*In this form we our a term cannot be a fraction nor can it be negative*

1. Get x and y on the same side, and since our x term is negative right now, we can make it positive by adding it on both sides.

(7/2)x + y = 1/2

2. We now want to get rid of the fraction in term a, so we multiply the entire function by two, so the denominator cancels out.

2(7/2)x + 2y = 2(1/2)

Simplify and you get

7x + 2y = 1

6 0
3 years ago
Help me thanks<br> Xxxxxxxxx
Vilka [71]

Answer:

The answer is C.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
How many 3/5's are in 4?
creativ13 [48]

Answer:

6.6

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
the half-life of a new experimental drug in your bloodstream is 15 hours how long will it take for the drug to Decay to 60% of t
Ierofanga [76]

4 hours? i may be wrong

i did - 60 * 15

seems about right, since 50% would be 7.5 hours?

7 0
3 years ago
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