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Alina [70]
2 years ago
10

If Grayson has filled 4 more sketchbooks with drawings at home than he has filled at school, how many sketchbooks has he filled

altogether?
Mathematics
1 answer:
salantis [7]2 years ago
8 0

Answer:

2x + 4

Step-by-step explanation:

I'm guessing there are no exact numbers

home = x + 4

school = x

x + x + 4

2x + 4

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Simplifying fractions Sheet 2<br>​
raketka [301]

<u>Simplifying fractions:</u>

1) \frac{14}{20} =\frac{7}{10}                  2) \frac{4}{8} =\frac{1}{2}

3) \frac{9}{12} =\frac{3}{4}                  4) \frac{12}{15} =\frac{4}{5}

5) \frac{8}{18} =\frac{4}{9}                  6) \frac{14}{21} =\frac{2}{3}

7) \frac{12}{16} =\frac{3}{4}                  8) \frac{10}{24} =\frac{5}{12}

9) \frac{15}{35}=\frac{3}{7}                 10) \frac{13}{26} =\frac{1}{2}

11) \frac{11}{55}=\frac{1}{5}                12) \frac{9}{21} =\frac{3}{7}

13) \frac{16}{26} =\frac{8}{13}              14) \frac{20}{32} =\frac{5}{8}

15) \frac{18}{24} =\frac{3}{4}               16) \frac{21}{27} =\frac{7}{9}

17) \frac{4}{32} =\frac{1}{8}               18) \frac{25}{40} =\frac{5}{8}

<em>Hope this helps :)</em>

5 0
3 years ago
Find the distance between a point (– 2, 3 – 4) and its image on the plane x+y+z=3 measured parallel to a line
Ber [7]

Answer:

The distance is:  

\displaystyle\frac{3\sqrt{142}}{10}

Step-by-step explanation:

We re-write the equation of the line in the format:

\displaystyle\frac{x+2}{3}=\frac{y+\frac{3}{2}}{2}=\frac{z+\frac{4}{3}}{\frac{5}{3}}

Notice we divided the fraction of y by 2/2, and the fraction of z by 3/3.

In that equation, the director vector of the line is built with the denominators of the equation of the line, thus:

\displaystyle\vec{v}=\left< 3, 2, \frac{5}{3}\right>

Then the parametric equations of the line along that vector and passing through the point (-2, 3, -4) are:

x=-2+3t\\y=3+2t\\\displaystyle z=-4+\frac{5}{3}t

We plug them into the equation of the plane to get the intersection of that line and the plane, since that intersection is the image on the plane of the point (-2, 3, -4)  parallel to the given line:

\displaystyle x+y+z=3\to -2+3t+3+2t-4+\frac{5}{3}t=3

Then we solve that equation for t, to get:

\displaystyle \frac{20}{3}t-3=3\to t=\frac{9}{10}

Then plugging that value of t into the parametric equations of the line we get the coordinates of the intersection:

\displaystyle x=-2+3\left(\frac{9}{10}\right)=\frac{7}{10}\\\displaystyle y=3+2\left(\frac{9}{10}\right)=\frac{24}{5} \\\displaystyle z=-4+\frac{5}{3}\left(\frac{9}{10}\right)=-\frac{5}{2}

Then to find the distance we just use the distance formula:

\displaystyle d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2+(z_1-z_2)^2}

So we get:

\displaystyle d=\sqrt{\left(-2-\frac{7}{10}\right)^2+\left(3-\frac{24}{5}\right)^2+\left(-4 +\frac{5}{2}\right)^2}=\frac{3\sqrt{142}}{10}

3 0
3 years ago
Find the distance between the points C(−6, 5)<br> and D(−3, 1)<br> .
Vlad [161]
D(-3,1) is the right answer
8 0
3 years ago
Read 2 more answers
What is the length of a segment with endpoints (2, 5) and (10, 11) *
yuradex [85]

Answer: 14 Units

Step-by-step explanation: Subtract (10-2) and (11-5)

4 0
3 years ago
sara wants to buy a necklace. the necklace has a list pice of $41 and the saels tax is 6%what will be the cost of the necklace a
gladu [14]
41multiply by 0.06+24.6
41+24.6=43.46
7 0
3 years ago
Read 2 more answers
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