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3 years ago

Twice the sum of a number plus 4 is 26. Find the number

Mathematics

1 answer:

telo118 [61]3 years ago

8 0

2(x+4)=26
2x+8=26
2x=14
X=7

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Eva has borrowed 200 songs from her friend. She plans to download an equal number of songs on her music player each week for 5 w

Alenkasestr [34]

PART A)

The rate of change is -40 songs each week, because the amount of songs left to be downloaded decrease by 40 every week.

the initial value is 200 at 0 weeks, which means that there are 200 songs to be downloaded at the beginning

PART B)

calculate the slope:
 m = (y2- y1)/(x2 - x1) = (160 - 200)/(1 - 0)
m = -40
now use the line equation in form of point-slope
y - y1 = m(x - x1)
y - 200 = -40(x - 0)
y = -40x + 200

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3 years ago

Connie's dog fido weighs 35 pounds. Her vet placed fido on a diet. What inequality can you write to find the average number of p

lawyer [7]

Fido's dog must lose 1.17 pounds each month to reach healthier weight.

Step-by-step explanation:

Given,

Weight of fido's dog = 35 pounds

Time period = 6 months

Goal weight to reach = 28 or less pounds

Let,

m be the weight to be lose each month.

Weight of dog - Time period * Weight to lose each month ≤ Goal weight

$35-6m\leq 28\\-6m\leq 28-35\\-6m\leq -7$

Dividing both sides by -6

$\frac{-6m}{-6}\leq \frac{-7}{-6}\\\\m\leq 1.17$

Fido's dog must lose 1.17 pounds each month to reach healthier weight.

Keywords: division, subtraction

Learn more about division at:

#LearnwithBrainly

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4 years ago

What are the points of discontinuity for y=x^2+3/x^2+2

mr Goodwill [35]

I don;t think there area any points of discontinuity on this graph.

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3 years ago

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Eduardwww [97]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Does anyone know the answer

Alex_Xolod [135]

Answer:x = 12,5

using thales's theorem, we have:

$\frac{15}{15+36}=\frac{20}{6x-7}\\\\ 6x-7=\frac{20.(15+36)}{15}=68\\\\x = \frac{68+7}{6}=12.5$

Step-by-step explanation:

8 0

3 years ago