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3 years ago

15

Sixty percent of eighth graders at the new middle school ride a bus to school.If 228 8th graders ride the bus to school,how many

eighth graders are in the school?

2 answers:

qaws [65]3 years ago

7 0

136.8 eighth graders

natka813 [3]3 years ago

7 0

That is the way I learned it

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175,000<br> In Scientific notation

Nataly [62]

Answer:

1.75*10 to the power of 5

Step-by-step explanation:

start by moving the decimal over until only one number is in front of the decimal. this is because in scientific notation a number can't be higher than 9.

check how many places you move the decimal over (5). 1.75000 needs to be simplified (since that's the point of scientific notation) and can be simplified to 1.75.

the answer is 1.75 multiplied by ten to the power of digits the decimal moved (5) so the answer is 1.75*10 to the power of 5

4 0

3 years ago

Varia is studying abroad in Europe. She is required pay $3,500 (in US dollars) per year to the university, however, she must pay

sleet_krkn [62]

Answer:

213 euros per month

Step-by-step explanation:

1dollar = 0.7306euros

thus $3,500 dollars can be found by a rule of three

dollar euro

1 ⇒ 0.7306

3500 ⇒ x

we find x as follows:

$x=\frac{0.7306*3500}{1} = 2,557.1$ euros

She will pay 2,557.1 euros per year.

Dividing between the 12 months of the year:

$\frac{2,557.1}{12}=213.1$

Rounding to the nearest whole euro she will pay 213 euros per month.

7 0

3 years ago

A hyperbola in the form (x ^ 2)/(a ^ 2) - (y ^ 2)/(b ^ 2) = 1 has a center, vertices, and foci that fall along a horizontal. Ple

Lyrx [107]

Answer:

True

Step-by-step explanation:

<u><em>Explanation</em></u>:-

The equation of the standard hyperbola is

$\frac{x^{2} }{a^{2} } - \frac{y^{2} }{b^{2} } =1$

Center is (0,0)

Hyperbola is symmetric with respective to both the axes, since if (x, y) is a point on the hyperbola, then (-x, y), (-x,-y), (x,-y) are also lie on the parabola.
The relation of between focus and transverse and conjugate axes c²=a²+b²

The transverse axis is along x-axis

The conjugate axis is along y-axis
The length of transverse axis is 2 a
The length of conjugate axis is 2 b
The foci is (±c,0) and the equation of foci is x=±a e)

The length of Latus rectum is $\frac{2b^{2} }{a}$

6 0

3 years ago

= a fx The function f is defined by f (x) = 50-3^x. The function g is defined by g(x) = a · Here are graphs of f and g. y مه f Х

Margaret [11]

Answer:

Step-by-step explanation:

a, compares to 50 beacuse a means the staying point ; slope, so that’s why it starts at 50.

b, compares to 3 beacuse that is the y-intercept

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2 years ago

How to create an equation with infinitely many solutions.

AlekseyPX

Answer:

4 x + 5 = 2 x + 2 x + 5

Step-by-step explanation:

If we simplify the following equation it will be 4 x + 5 = 4 x + 5. This equation has infinitely many solutions because every value for x we substitute in, it will be the same on both sides, for example

Substitute x = 7 into 4 x + 5 = 4 x + 5

4 × ( 7 ) + 5 = 4 × ( 7 ) + 5

28 + 5 = 28 + 5

33 = 33

Every x value that we substitute in will result in the equation having the same result on both sides

6 0

3 years ago