3 years ago

The Question

Mathematics

1 answer:

77julia77 [94]3 years ago

5 0

Answer:

Step-by-step explanation:

Divide 12 by .40 (the percentage) to figure out what the full number would be.

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6x-5y=17 solve the system

pantera1 [17]

6x-5y=17
-6x -6x
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-5y= -6x+17
______________
-5

y=
$\frac{6}{5 } x + \frac{17}{ - 5}$

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3 years ago

Find the 12th term of the arithmetic sequence given a3=116 and a7=180<br>

SOVA2 [1]

Answer:

Step-by-step explanation:

nth term = a +(n-1)d

a3 = 116 ; a + 2d = 116 ---------(i)

a7 = 180; a + 6d = 180 -------(ii)

multiply (ii) by -1. so a will be eliminated

a + 2d = 116 ---------(i)

(ii)*-1 <u>-a - 6d = -180</u> -------(ii) { Now add the two equations}

- 4d = -64

d = -64/-4

d = 16

Plug in the value of d in equation (i),

a + 2*16 = 116

a + 32 = 116

a = 116 - 32

a = 84

12th term = 84 + 11* 16 = 84 + 176 = 260

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3 years ago

On a math quiz, Tina scored 5 less points than Ben. Juan scored

kumpel [21]

Answer:

a) t=b-5 b) j=b+3+2

Step-by-step explanation:

t is tina, we don't know how much Ben scored so we use b, then subtract 5 because tina got 5 less. same thing for Juan but we add the 3 points he got more than Ben and the 2 extra credit points

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3 years ago

If the distance covered by an object in time t is given by s(t)=t^2+5t , where s(t) is in meters and t is in seconds, what is th

alisha [4.7K]

Answer:

E. 44 meters

Step-by-step explanation:

The function that models the distance covered by the object is

$s(t)=t^2+5t$

where s(t) is in meters and t is in seconds.

The distance covered by the object after 1 second is

$s(1)=1^2+5(1)=6m$

The distance covered by the object after 1 second is

$s(1)=5^2+5(5)=50m$

The distance covered between 1 second and 5 seconds is

50-6=44m

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3 years ago

In a school with 2,000 students, a random sample of 120 students were asked which fruit is their favorite. Their

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567 students would pick orange

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3 years ago

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