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3 years ago

A circular running track is į mile long. Jackie runs on this track, completing each lap in as of

Mathematics

2 answers:

sukhopar [10]3 years ago

8 0

One mile per mile
Because she’s running for an hour

Alisiya [41]3 years ago

5 0

Answer: its 1 mile per hour

Step-by-step explanation:

she went around the mile long circle in one hour

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The school cafeteria is holding an election for students to vote on which items they would like to see on the lunch menu. The ch

d1i1m1o1n [39]

There are two choices to choose from:

a) Grilled chicken
b) Veggie Pizza

36% students voted for veggie pizza. This means the remaining votes will go to the Grilled chicken. Thus grilled chicken received 64% of the student votes.

Since more students voted for the Grilled chicken, it will be on the lunch menu.

3 0

3 years ago

3x + ky = 8

djyliett [7]

Answer:

a) 3x + ky = 8

ky = 8 - 3x

x – 2ky = 5

x - 2(8 - 3x) = 5

x - 16 + 6x = 5

7x = 21

x = 3 (shown)

b) x-2ky = 5

sub x = 3, y = 1/2

3-2k(1/2) = 5

-2k = 2

k = -1

3 0

3 years ago

Find the ratio 2 1/2 to 6 1/2

ivanzaharov [21]

Answer:

The ratio 2 1/2 to 6 1/2 is

$\frac{5}{13}\\or\\5:13$

Step-by-step explanation:

Ratio:

In mathematics, a ratio is a relationship between two numbers indicating how many times the first number contains the second.

It is also the Fraction

For example, if a bowl of fruit contains eight apples and six kiwis, then the ratio of apples to kiwis is eight to six.

i.e 8:6, which is equivalent to the ratio 4:3.

Now here,

$2\frac{1}{2}=\frac{4+1}{2}\\\\2\frac{1}{2}=\frac{5}{2}\\\\and\\\\6\frac{1}{2}=\frac{12+1}{2}\\\\6\frac{1}{2}=\frac{13}{2}$

Ratio of 2 1/2 to 6 1/2

$\frac{\frac{5}{2}}{\frac{13}{2}} = \frac{5}{13}\ \textrm{The number 2 will be cancelled from Numerator and Denominator} \\\\Hence,\\Final\ Ratio\ is\ 5 :13$

$\frac{5}{13}$

6 0

4 years ago

What is the surface area if the height is 30 and the diameter is 14

Scorpion4ik [409]

First you find out what the radius is, which is diameter divided by 2 (7 in this case). Then you use the formula
A=2πrh+2πr2. A=2πrh+2πr2=2·π·7·30+2·π·72≈1627.34499. Then you can round it to whatever it's asking.

5 0

3 years ago

If x = 15 and y = 4, what is the value of the following expression?

Mandarinka [93]

B is the answer. This is my work.

4 0

3 years ago