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stiv31 [10]
3 years ago
6

Solve each equation. check your solution. -1/2x-7=-11

Mathematics
2 answers:
boyakko [2]3 years ago
6 0
- \frac{1}{2} x-7=-11\

- \frac{1}{2} x=-11+7          |adding 7 on both sides

- \frac{1}{2} x*2=-4*2         |multiplying by -2 on both sides

-x = -8                                |dividing by -1 on both sides

x = 8

So, the solution is x =8
cupoosta [38]3 years ago
4 0
I'll offer you a deal in return for your 5 points:  I'll solve it . . . . You check it.

<u>-1/2x - 7  = -11</u>

Add  7  to each side:            -1/2 x  =  -4

Multiply each side by  2 :      - x  =  -8

Multiply each side by  -1 :     <em> x  =  8</em>

Take it Allalala !

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Aidan is participating in an 8 mile walk for his favorite charity. The organizers used a coordinate grid to plot the course. The
Travka [436]

Answer:

Aidan is 2 miles far from the ending point when he reaches the water station.

Step-by-step explanation:

The locations of the starting point, water station and ending point are (3, 1), (3, 7) and (3, 9), all expressed in miles. First we determine the distances between starting and ending points and between starting point and water station by the Pythagorean Theorem:

From starting point to ending point:

D = \sqrt{(3-3)^{2}+(9-1)^{2}} (Eq. 1)

D = 8\,mi

From starting point to water station:

d = \sqrt{(3-3)^{2}+(7-1)^{2}} (Eq. 2)

d = 6\,mi

The distance between the water station and the ending point is:

s = D-d (Eq. 3)

s = 8\,mi-6\,mi

s = 2\,mi

Hence, Aidan is 2 miles far from the ending point when he reaches the water station.

3 0
3 years ago
John has a rectangular-shaped field whose length is 62.5 yards and width is 45.3 yards. The area of the field is ________ square
oee [108]
Area = 2831.25 square yards

Perimeter =215.6 yards

EXPLANATION

The area and perimeter of a rectangular field are found using the formula for finding the area and perimeter of a rectangle respectively.

That means, area of the rectangular field is given by the formula,

A= l\times w

We just have to substitute
l=62.5 and w= 45.3 into the given formula and evaluate.

This implies that;

A= 62.5\times 45.3

This gives the area of the rectangular-shaped field to be;

A= 2831.25 square yards.

Now for the perimeter, we use the formula

P=2w +2l

Or

P=2(w +l)

Substituting the values for the length and width gives,

P=2(62.5+45.3)

\Rightarrow P=2(107.8)

\Rightarrow P=215.6

Hence the perimeter of the rectangular shaped field is 215.6 yards.
8 0
3 years ago
-5/8 multiplied by 7/1
astraxan [27]

Answer:

-4.375

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What am I supposed to do
Nostrana [21]

Answer:

answer is b

Step-by-step explanation:

I'm smart bro

4 0
3 years ago
Read 2 more answers
What’s the correct answer for this question?
g100num [7]

Answer:

A.

Step-by-step explanation:

Volume of cone = 1/3πr²h

= (1/3)(3.14)(1.5)²(5)

= (1/3)(3.14)(2.25)(5)

= (1/3)(35.3)

= 11.78

≈ 11.8 cubic inches

4 0
3 years ago
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