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viva [34]
3 years ago
15

Witch statment describes a unit rate 1 sara ate 1 cookie 2 sara is driving 16 miles 3 sara is driving 30miles per hour 4 sara at

e three crackers and 1 apple
Mathematics
1 answer:
nydimaria [60]3 years ago
4 0

Answer:

3; Sara is driving 30 miles per hour

Step-by-step explanation:

Here in this question, we want to select which of the options represent what a unit rate is.

When we talk of rate, we are referring to how a particular measured entity is changing in relation to another measured entity. Hence, we are simply looking at how there is a change between two measurable quantities.

Option 1 is not rate, it only tells us Sara ate 1 cookie. How Sara did this, we do not know, whether fast or slow

Option 2 is just measuring distance. We only know that Sara traveled a particular distance. We do not know how fast, or slow this has occurred

Option 3 is our answer. It clearly tells us how the distance Sara is traveling is measured against time

Option 4 is not correct, we only know the number of crackers and apples are, the rate at which this is done, we do not know

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Lera25 [3.4K]

Answer:

1

Step-by-step explanation:

PEMDAS

6/ 2(1+2)

6 divided by 2 (3)

multiply 2(3) =6

6/6 =1

6 0
3 years ago
Read 2 more answers
The Sahara Desert has an area of approximately 9 400 000 km^2. While estimates of its average depth vary, they center around 150
Andrew [12]

Answer:

a). 1.128\times 10^{25} grains

b). \frac{1}{8000}

c). 6.54305\times 10^{7} years

Step-by-step explanation:

a). Given Sahara desert has an area of approximately = 9400000 km²

= 9400000×(10000000000) cm²

= 9.4\times 10^{16} cm²

Depth of the desert = 150 m

= 15000 cm

Volume of desert = Area × Depth

= 9.4\times 10^{16}\times 15000

= 1.41\times 10^{21} cm³

Since 1 cm³ holds sand grains = 8000

Therefore, Grains in Sahara Desert = 1.41\times 10^{21}\times 8000

= 1.128\times 10^{25}

b). Since 1 cm³ = 8000 grains

1 grain = \frac{1}{8000} cm³

c). A truck can carry sand = 20.5 m³ Or 20.5\times (10^{2})^{3} cm^{3}

= 2.05\times 10^{7} cm³

Now time taken to recreate Sahara Desert = \frac{\text{Total amount of sand}}{\text{Sand in one truck}}\times 30 seconds

=  \frac{1.41\times 10^{21}}{2.05\times 10^{7}}\times 30

= 20.6341463\times 10^{14} seconds

= \frac{20.6341463\times 10^{14} }{365\times \times 24\times 3600} years

= 6.54305\times 10^{7} years

6 0
3 years ago
Pls help me with this…
Paladinen [302]
3
The answer is 3
The answer is 3
5 0
3 years ago
The probability that the bus is late on Monday is 20%, and the probability that the bus is late on Tuesday is 10%. What is the p
Aleks [24]
Add 20% and 10% (30%). Then, because it is two days combined, it would be 30% of 200. Divide each by 2, and there is your answer. 

<span>The probability that the bus will be late on both days is: 15%.</span>
7 0
3 years ago
I need help please <br> (Geometry)
oee [108]

The surface area formula for any sphere is 4(pi)(radius)^2

The radius is half of the diameter.

18.6 / 2 = 9.3

So, plug into the formula and solve.

4(3.14)(9.3)^2 = 1086.3 mm^2

4 0
4 years ago
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