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inessss [21]
3 years ago
5

Solve each equation –7x = 63

Mathematics
2 answers:
ELEN [110]3 years ago
8 0
You have to dived 63 by -7 which is -9

x=-9
hram777 [196]3 years ago
5 0

-7x=63

-x=63/7

-x=9

-9x

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I Need Help thanks <br>:)?​
Feliz [49]

Answer:

6)  x = 40.5

8)  x = 16.5

Step-by-step explanation:

6) 45/x = 20/18

simplify and cross-multiply to get:

45/x = 10/9

10x = 405

x = 40.5

8) 22/8 = x/6

11/4 = x/6

4x = 66

x = 33/2

x = 16.5

8 0
3 years ago
How does finding the square root of a number compare to finding the cube root lf a number? Use the number 64 in your explainatio
xenn [34]

If you want to know the concept of square roots and cube roots ?

the square root of a number is that number which when multiplied by itself two times gives us that number

e.g.

√64 = x , so that (x)(x) = 64

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(8)(8) = 64 , so that

√64 = 8

the cube root of a number is that number which when multiplied by itself three times gives us that number

e.g.

∛64 = x , so that (x)(x)(x) = 64 , and thus x = 4 because 4x4x4 = 64

so ∛64 = 4

6 0
4 years ago
Trigonometry<br> Use trigonometry functions to find the area <br> In ΔABC, AB=21, AC=16, and m
KIM [24]

Answer:

154.6 units²

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½ × 21 × 16 × sin(67)

154.644815388

7 0
3 years ago
During the school year, a bus driver made 7 trips to the museum. The distance from the school to the museum is 36 miles. Write a
bagirrra123 [75]

Given:

Number of trips = 7

Distance from the school to the museum = 36 miles.

To find:

Write and solve equations to find how many miles the bus driver drove for the 7 trips.

Solution:

Let x be the number of trips and y be the total number of miles the bus driver drove.

Distance from the school to the museum = 36 miles.

1 trip means from the school to the museum and then from the museum to the school.

Distance covered in 1 trip = 2×36 = 72 miles.

Distance covered in x trips = 72x miles.

y=72x

Substitute x=7 in the above equation to find the total distance the bus driver drove for the 7 trips.

y=72(7)

y=504

Therefore, the bus driver drove 504 miles for the 7 trips.

7 0
3 years ago
A baseball field is in the shape of a square. The
lina2011 [118]
Since the distance in between each plate is 90ft. We know from home to 1st is 90ft. To get to 2nd from first is also 90ft. So 90 + 90 is 180ft.

Now this question is weird because it could be asking how far would a baseball player would have to run to get to 1st then 2nd

Or

Could be asking the distance from Home to 2nd without going to 1st. So just a straight line from home to 2nd.

If that’s the case we need to use the Pythagorean theorem

Our setup would be 90^2 + 90^2 = c^2
Adding A and B will get us 16200. Now we need to divide to get to the other side. But C is squared. So we need to Square root 16200. Which is 127.28ft.

4 0
3 years ago
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