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Nesterboy [21]
3 years ago
11

John walks dogs to earn extra money. He earns $5 per dog he walks. Using the following equation y = 5x, where x =the number of d

ogs John walks
and y = the number of dollars John earns.
What is the number of dollars John earns if he walks 8 dogs?

A. $3

B. $13

C. $25

D. $40
Mathematics
2 answers:
Ivanshal [37]3 years ago
5 0

8 dogs so 5*8= 40

so it's D

Goshia [24]3 years ago
3 0
40$ i believe if it’s wrong I’m sorry but I pretty sure it’s 40$
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Last Saturday, Kevin walked his dog 1 2/7 miles. Sam walked his dog 7 times as far. How many miles total did both guys walk thei
Annette [7]

Answer:

10\dfrac{2}{7}\ miles

Step-by-step explanation:

If Kevin walked his dog 1 2/7 miles and Sam walked his dog 7 times as far, then Sam walked his dog

1\dfrac{2}{7}\cdot 7=\dfrac{1\cdot 7+2}{7}\cdot 7=\dfrac{9}{7}\cdot \dfrac{7}{1}=9\ miles.

Together they walked

1\dfrac{2}{7}+9=10\dfrac{2}{7}\ miles.


7 0
4 years ago
An equation of the line that contains the origin and the point (1,2) is
Semmy [17]
(0,0)(1,2)......(0,0) is the origin
slope = (2-0) / (1-0) = 2/1 or just 2

y = mx + b
slope(m) = 2
(1,2)...x = 1 and y = 2
now we sub, we r looking for b, the y intercept
2 = 2(1) + b
2 = 2 + b
2 - 2 = b
0 = b

ur equation is : y = 2x + 0...or just y = 2x
3 0
4 years ago
Three small circles C1, C2, and C3, each with radius 0.1 and centered at the origin are in the xy-, yz-, and xz-planes, respecti
den301095 [7]

Curl is defined as:

\bigtriangledown \times F=\frac{ \int F.dr}{Area}

Which can be rewritten as:

\frac{ \int F.dr}{Area}=\frac{ \int_{C_1} Fdr}{Area}\widehat{k}+\frac{ \int_{C_2} Fdr}{Area}\widehat{i}+\frac{ \int_{C_3} Fdr}{Area}\widehat{j}

This is because C1 lies on the xy plane and thus it's unit vector will be \widehat{k}.

By similar arguments the rest will follow too.

Now, area of each circle will be: \pi \times (0.1)^2=0.01 \pi

Therefore, Curl, as per our definition will be:

\frac{\int F.dr}{Area}=\frac{0.01\pi}{0.01\pi}\widehat{k}+\frac{0.4\pi}{0.01\pi}\widehat{i}+\frac{5 \pi}{0.01\pi}\widehat{j}

Thus, Curl=40\pi \widehat{i}+500\pi \widehat{j} +\widehat{k}

Which is the required answer.

7 0
4 years ago
Order the fraction to least to greatest 7\9 13\18 5\6 2\3
Olegator [25]
First, you need to have a common denominator for all of them, in this case, they can all go in 18 so that will be the common denominator. 

\frac{7}{9} x \frac{2}{2} = \frac{14}{18}
\frac{5}{6} x \frac{3}{3} =  \frac{15}{18}
\frac{2}{3} x \frac{6}{6} = \frac{12}{18}
\frac{13}{18}

Now you can tell which ones are the biggest or smallest. So from least to greatest you would have this.

\frac{2}{3} , \frac{13}{18} , \frac{7}{9} , \frac{5}{6}

7 0
3 years ago
PLEASE ANSWER ASAP!!!
yaroslaw [1]

Answer:

-6 is the x-coordinate value

Step-by-step explanation:

Mathematically, slope can be calculated as;

m = (y2-y1)/(x2-x1)

For the value of the slope to be undefined, it means that we are actually dividing by zero

For us to be dividing by zero, it actually means that there is no change in the x-value

The unchanging x-value is what has caused us to have an undefined slope value

Since line k and line g are parallel, their slopes are equal and the slope of k is undefined too

So the x-coordinates of the other points that lie on the line that we used in calculating the slope is -6

3 0
3 years ago
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