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2 years ago

1. Milania makes $17 per hour and works 30 hours per week. She loses 20% of her check to taxes.

Mathematics

2 answers:

ollegr [7]2 years ago

6 0

Answer:

please give my answer first

Fofino [41]2 years ago

5 0

Answer:

408 is correct

0.8 x 510 = 408

Step-by-step explanation:

When we get a sale value or reduced value to find

This is a short cut of workings in bold to find correct value.

10% of 510 = 51

20% of 510 = 102

510-102 =408

17 x 30 = 510 Not correct as calculated before taxes.

100-80/ 100 = 0.8

0.8 x 510 = 408

408/510 = 0.8 Is correct

0(17) (30) = 510 Not correct as calculated before tax

510 - 2(17)(30) = 510 i Not correct as calculated before tax.

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In the last school election, 88% of the student body voted. If the school has an enrollment of 350 students, how many students v

Brums [2.3K]

88% = 88/100 = 22/25

22/25 x 350 = 7700/25 = 308

Therefore 308 students voted

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2 years ago

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Write an equation of a line in slope-intercept form that passes through the point (8, 9) and has a slope of 3.

Komok [63]

Answer:

y=3x-15

Step-by-step explanation:

y-y1=m(x-x1)

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2 years ago

⦁ Find the sum of the series . 15 sigma n=1, (2n-1) Show your work

sergejj [24]

Answer:

225

Step-by-step explanation:

The sum of this series is given by the formula:

$S_n=\frac{n}{2}[2a+(n-1)d]$

Where

S_n is the sum

a is the first term (we get this by plugging in n = 1 into "2n-1", we have 2(1) - 1 = 1)

n is the number of terms (the sum is defined for n = 1 to n = 15, so 15 terms)

d is the common different (the difference is successive terms. Here, 2nd term would be 2(2) - 1 = 3, and first term was 1, so d = 3 -1 = 2)

plugging in the info, we will get the sum:

$S_n=\frac{n}{2}[2a+(n-1)d]\\S_{15}=\frac{15}{2}[2(1)+(15-1)(2)]\\=225$

The sum is 225

4 0

2 years ago

Find the value of 7v-6 given that -8v-9=7 Simplify your answer as much as possible 7v-6=

evablogger [386]

Answer:

-20

Step-by-step explanation:

-8v-9=7

Add 9 to each side

-8v-9+9=7+9

-8v = 16

Divide by -8

-8v /-8 = 16/-8

v = -2

Now find

7v -6

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-14 -6

-20

4 0

3 years ago

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30 POINTS!!! NEED HELP!!!!

Kaylis [27]

Answer:

b) 16 + 9 + 4 + 1 + 0 + 1 + 4 + 9 + 16 + 25 + 36 + 49 + 64 + 81 + 100 + 121

Step-by-step explanation:

$\Sigma_{k=1}^{16} (k - 5)^2 \\= (1- 5)^2 + (2- 5)^2 + (3- 5)^2 + \\ (4- 5)^2 + (5- 5)^2 + (6- 5)^2 \\+ (7- 5)^2 + (8- 5)^2 + (9- 5)^2 \\+ (10- 5)^2 + (11- 5)^2 + (12- 5)^2 \\+ (13- 5)^2 + (14- 5)^2 + (15- 5)^2\\ + (16- 5)^2 \\\\=(-4)^2 + (-3)^2 + (-2)^2 + (-1)^2 + (0)^2 \\+ (1)^2 + (2)^2 + (3)^2 + (4)^2 + (5)^2 \\+ (6)^2 + (7)^2 + (8)^2 + (9)^2 + (10)^2 + \\ (11)^2 \\\\=16 + 9 + 4 + 1 + 0 + 1 + 4 + 9 + 16 + 25 \\+ 36 + 49+ 64 + 81 + 100 + 121$

6 0

3 years ago