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3 years ago

Which number line represents the solution to 2.5-1.2x<6.5 - 3.2x?

Mathematics

1 answer:

jarptica [38.1K]3 years ago

8 0

Answer:

Step-by-step explanation:

subtract 2.5 and add 3.2x to both sides

2.0x < 4.0

x < 2

Not sure which of your choices reflects that solution. They're kinda hard to read

mooch

3 years ago

answer c

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It takes Harland 15 minutes to rake all leaves in the front yard. If Trudy scatters the leaves while Harland rakes, it takes him

Alinara [238K]

If T were to scatters the leaves faster than H rakes them, H would Neve finish raking. So must be over 20 minutes

1/15-1/T=1/20
4/60-1/T=3/60
T=60 mins

So it would take Trudy 60 minutes to scatter all of the leaves

4 0

3 years ago

Read 2 more answers

In the accompanying diagram, what is sin E? A. B. E C. D. 4 G A B С OD

IRINA_888 [86]

Answer:

Sin(E) = $\frac{4}{5}$

Step-by-step explanation:

The full question is as follows :

To find - In the accompanying diagram, what is sin E?

Proof -

We know that,

Sin(theta) = (opposite side) / (hypotenuse)

From the diagram, we can see that,

Base = 3

Perpendicular = 5

Hypotenuse = 5

So,

For angle E,

Opposite side = 4

Hypotenuse = 4

∴ we get

Sin(E) = $\frac{4}{5}$

5 0

3 years ago

A recipe calls for 2 tsp of butter. Melinda wants to make 40% more servings than the recipe makes. Which expression represents h

zubka84 [21]

The answer is D. 1.4=140% She needs the necessary amount + 40% .

4 0

3 years ago

Why would using a net and needing to know how to calculate surface area be an important part of designing a three-dimensional ob

son4ous [18]

Answer:

A net is a pattern made when the surface of a three-dimensional figure or solid is laid out flat showing each face of the figure. It is then possible to use the net to calculate the surface area of the solid. Surface Area of a Cube using Nets. A cube is a three-dimensional figure with six matching square faces.

Step-by-step explanation:

hope it helps

4 0

4 years ago

A jar has 2 red marbles and 3 blue marbles. Two marbles are drawn at random without replacement from the jar.

ruslelena [56]

Answer: The required answers are

(a) 0.4.

(b) 0.3.

Step-by-step explanation: Given that a jar has 2 red marbles and 3 blue marbles and two marbles are drawn at random without replacement from the jar.

We are to find the probability that

(a) the second marble is red.

(b) the second marble is red, given that the first is blue.

(a) Here, we need to find the probability that the second ball drawn is red. That is, the first ball may be red or blue.

If first ball is red, then the probability that the second ball is red is given by

$p_1=\dfrac{2}{5}\times\dfrac{1}{4}=\dfrac{1}{10}.$

If first ball is blue, then the probability that the second ball is red is given by

$p_2=\dfrac{3}{5}\times\dfrac{2}{4}=\dfrac{3}{10}.$

Therefore, the probability that the second ball drawn is red is

$p=p_1+p_2=\dfrac{1}{10}+\dfrac{3}{10}=\dfrac{4}{10}=\dfrac{2}{5}=0.4.$

(b) Here, we need to find the probability that the second marble is red, given that the first is blue.

From part (a), we get that

the probability that the second ball is red, given that the first marble drawn is blue is

$p=\dfrac{3}{10}=0.3.$

Thus, the required answers are

(a) 0.4

(b) 0.3.

3 0

4 years ago