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Ghella [55]
3 years ago
6

Jenn swam ⅕ mile in ¼ hour. What is her unit rate in miles per hour?

Mathematics
2 answers:
Paladinen [302]3 years ago
4 0

Answer:

1/2 mile/1/5 hour = 5/2 mph = 2 1/2 mph

Step-by-step explanation:

raketka [301]3 years ago
4 0

Answer:

0.80mph

Step-by-step explanation:

If 1/5 = 1/4, then:

she swims 1/5 miles for every 1/4 (fourth) of an hour

per hour means 1 hour

we must covert 1/4 to 4/4 (one mile)

1/4 × 4/1 = 4/4

if we multiply by 4/1 to get to 4/4, then we must also multiply by 4/1 for 1/5 miles

1/5 × 4/1 = 4/5

Her unit rate in miles per hour is 4/5 per 1 miles, or 0.80mph

*0.80 = 4/5 because 4 × 20 = 80 and 5 × 20 = 100; 80/100 = 0.80*

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dalvyx [7]

Answer:

q=24

Step-by-step explanation:

the opposite of division is multiplication so 4x6=24. then you check this by of course imputing your answer into the equation. 24 ÷ 6 =4

4 0
3 years ago
Helppp this is my math test <br><br> Which model is 85% shaded?
Anettt [7]

Answer:

Model 1 represents 85% shaded area.

Step-by-step explanation:

Here, each model consists of equal sized rectangles.

Please refer to attached figure to know the model number.

Model 2 (on top right of question figure) contains a total of 20 such rectangles out of which 13 are shaded. As per formula of percentage:

\text{Percentage of shaded area} = \dfrac{\text{Number of shaded rectangles}}{\text{Total number of rectangles}} \times 100\\\Rightarrow \dfrac{13}{20}\times 100 = 65\%

Model 3 (on bottom left of question figure) contains a total of 16 such rectangles out of which 10 are shaded. As per formula of percentage:

\text{Percentage of shaded area} = \dfrac{10}{16}\times 100 = 62.5\%

Model 4 (on bottom right of question figure) contains a total of 16 such rectangles out of which 13 are shaded. As per formula of percentage:

\text{Percentage of shaded area} = \dfrac{13}{16}\times 100 = 81.25\%

Model 1 (on top left of question figure) contains a total of 20 such rectangles out of which 17 are shaded. As per formula of percentage:

\text{Percentage of shaded area} = \dfrac{17}{20}\times 100 = 85\%

Hence, model 1 is the correct answer.

3 0
3 years ago
Use the given conditions to write an equation in slope-intercept form. passing through (-2, 0) &amp; (0, 2)
Crazy boy [7]

Answer:

Step-by-step explanation:

(2 - 0)/(0 + 2)= 2/2= 1

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6 0
3 years ago
P^3×q^2(p^4×q^n×r^3/r^-4)=p^7q^5r^7 <br><br> What does n=
Juli2301 [7.4K]

Answer:

n = 3

Step-by-step explanation:

Given:

The equation given is:

p^3q^2(p^4q^n\times \frac{r^3}{r^{-4}})=p^7q^5r^7

We simplify the given equation using the following law of indices:

a^m\times a^n=a^{m+n}\\\frac{a^m}{a^n}=a^{m-n}

Therefore,

p^{3+4}q^{n+2}\times r^{3-(-4)})=p^7q^5r^7\\p^7q^{n+2}r^7=p^7q^5r^7\\q^{n+2}=q^5

Since the base on both the sides is same, therefore, their exponents must also be same. This gives,

n+2=5\\n=5-2\\n=3

Therefore, the value of 'n' is 3.

5 0
3 years ago
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SOVA2 [1]

Answer: C

Step-by-step explanation:

4 0
3 years ago
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