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Vlada [557]
3 years ago
12

Subtract. Express your answer in lowest form. 8 1/4 minus 5 2/3 a. 3 5/12 b. 3 7/12 c. 2 5/12 d. 2 7/12

Mathematics
2 answers:
valina [46]3 years ago
8 0

Answer:

D. 2 7/12

Step-by-step explanation:

8 1/4 - 5 2/3

Turn to improper fractions.

33/4 - 17/3

Make the denominators equal.

99/12 - 68/12

Subtract the fractions since denominators are equal.

31/12

= 2 7/12

Nady [450]3 years ago
8 0

Answer:

2 \frac{7}{12}

<em>Answer</em><em> </em><em>D</em><em> </em><em>is</em><em> </em><em>correct</em><em>.</em>

Step-by-step explanation:

8 \frac{1}{4}  - 5 \frac{2}{3}  \\  \frac{33}{4}  -  \frac{17}{3}  \\  \frac{99 - 68}{12}  \\  \frac{31}{12}  = 2 \frac{7}{12}

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A plane flies with a speed of 600 mph. What distance will it fly
Vera_Pavlovna [14]

Answer:

3/5=360 mph 11/12=550 4/15=160

Step-by-step explanation:

4 0
3 years ago
The height of a tennis ball tossed into the air is modeled by h(x) = 40x â€" 16x 2, where x is elapsed time in seconds. During w
egoroff_w [7]

The time interval x >0.5 and x > 2.04 will the tennis ball be at least 15 feet above the ground.

Given that,

The height of a tennis ball tossed into the air is modeled by,

\rm h(x) = 40x - 16x^2

Where x is elapsed time in seconds.

We have to determine,

During what time interval will the tennis ball be at least 15 feet above the ground?

According to the question,

The height of a tennis ball tossed into the air is modeled by,

\rm h(x) = 40x - 16x^2

Where x is elapsed time in seconds.

Then,

When the tennis ball be at least 15 feet above the ground,

h(x) = 15

Substitute the value of h(x) in the equation,

\rm h(x) = 40x - 16x^2\\\\ 15 = 40x - 16x^2\\\\ 16x^2-40x+15=0

Factorize the equation for finding the time interval will the tennis ball be at least 15 feet above the ground is,

\rm 16x^2-40x+15= 0\\\\x = \dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\x = \dfrac{-(-40)\pm \sqrt{(-40)^2-4 \times 16 \times 15}}{2 \times 16}\\\\x =  \dfrac{-(-40)\pm \sqrt{1600- 960}}{32}\\\\x =  \dfrac{40\pm \sqrt{640}}{32}\\\\x =  \dfrac{40 + 25.29}{32} \\\\x =  \dfrac{40 + 25.29}{32} \ and \ x =  \dfrac{40 - 25.29}{32}\\\\x = \dfrac{65.29}{32} \ and \ x = \dfrac{14.71}{32}\\\\x = 2.04 \ and \ x = 0.45

Hence, The time interval x >0.5 and x > 2.04 will the tennis ball be at least 15 feet above the ground.

For more details about Inequality refer to the link given below.

brainly.com/question/17177510

7 0
3 years ago
A subway train travels at a rate of 50 miles per hour. Write and solve an equation to find the number of minutes it take for the
AVprozaik [17]

Answer:

12 minutes

Step-by-step explanation:

 <u>50 miles</u>      =    <u>10 miles</u>                  << Equivalent

   1 hour        =          x                        <<   fraction

You divide 50 by 5 to get 10,

so to get the number of minutes for 10 miles,

divide 60 by 5.

(1 hour =  60 minutes, 60/5 = 12)

7 0
3 years ago
Estimate each product 1/6 of 17
sweet-ann [11.9K]
2 is the estimated product the exact answer is 2.83
3 0
3 years ago
Answer????? with steps​
Alchen [17]
6000 x 10% x 5

=600x5
=3000
4 0
2 years ago
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