All categories

2 years ago

Simplify -2 1/9 -(-4 1/3)

Mathematics

2 answers:

ololo11 [35]2 years ago

8 0

The answer to this is 20/9

vesna_86 [32]2 years ago

3 0

Answer:

$\frac{20}{9}$ or $2 \frac{2}{9}$

You might be interested in

Snow Dome Ski Resort has 65 inches of snow. It is currently snowing there at a rate of 1 inch per hour. Mt. Winterpark Ski Resor

34kurt

Answer:

a) Equation for Snow Dome Ski Resort:

$I_s = 65+t$

Equation for Mt. Winterpark Ski Resort:

$I_m = 74+\frac{t}{2}$

b) After 19 hours, Snow dome will have more snow.

Step-by-step explanation:

Given that:

Initial snow at Snow Dome Ski Resort = 65 inches

Snowing rate at Snow Dome Ski Resort = 1 inch per hour

Initial snow at Mt. Winterpark Ski Resort = 74 inches

Initial snow at Mt. Winterpark Ski Resort = $\frac{1}{2}$ inch per hour

a) To write equations that show amount of snow at each resort.

Let the time in hours be represented by $t$ .

Snow increased in $t$ hours by snowing at Snow Dome Ski Resort = $1\times t = t$ inches per hour

Snow increased in $t$ hours by snowing at Mt. Winterpark Ski Resort = $\frac{1}{2}\times t = \frac{t}{2}$ inches per hour

Equation for Snow Dome Ski Resort:

$I_s = 65+t$

Equation for Mt. Winterpark Ski Resort:

$I_m = 74+\frac{t}{2}$

b) Time at which Snow Dome has more snow.

Using the above equations, we can write the following inequality:

$65+t>74+\dfrac{t}{2}\\\Rightarrow t-\dfrac{t}{2}>74-65\\\Rightarrow \dfrac{t}{2}>9\\\Rightarrow t>18\ hours$

After 18 hours have passed, they will have equal amount of snow.

After 19 hours, Snow dome will have more snow.

7 0

3 years ago

At a football match, there were 250 more men than women. The number of children was twice the number of women,and the number of

Lynna [10]

Answer:

A couple of hundreds

Step-by-step explanation:

In my brain

5 0

3 years ago

2. A rock is thrown upward from the edge of a 135 foot cliff overlooking Lake Superior, with an initial

Alex Ar [27]

Answer:

Step-by-step explanation:

6 0

2 years ago

8^2+4−12 how do I factor this out.

lara [203]

8^2=8x8=16 then you add 4 and subtract 12 which will get you 56. correct me if i’m wrong.

6 0

3 years ago

The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym.

velikii [3]

A) If you only sample people in a sports supply store, your sample will be biased. People in a sports supply store are more likely to be people that belong to a gym.
B) While it does not have necessarily the same amount of bias as sampling people in the sports supply store, people that go to a park are generally more likely to be people that exercise or have a gym membership.
C) Taking a random sample of people in town is a good way to get a non-biased sample. They are not necessarily predisposed to answer your question one way or another.
D) For the same reason as choice A, this is a biased sample.

C is the best choice.

4 0

3 years ago