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3 years ago

What is the value of x in the equation below? 5(4x-10) + 10x = 4(2x-3) + 2(x-4)

Mathematics

1 answer:

Marina86 [1]3 years ago

5 0

Answer:

5/2 i think but i am not sure sorry if its wrong

Step-by-step explanation:

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Choose a number between 67 and 113 that is a multiple of 3, 9, and 12

Anestetic [448]

72 is multiples of 3,9, and 12

3 0

3 years ago

Complete 5^9/5^3=5^a

Goryan [66]

Answer:

6=a

Step-by-step explanation:

5^9/5^3=5^a

We know that b^c = b^d = b^(c-d)

5^9/5^3=5^a

5^(9-3) = 5^a

5^6 = 5^a

The bases are the same so the exponents are the same

6=a

7 0

3 years ago

Read 2 more answers

A map is laid out in the standard (x,y) coordinate plane. How long, in units, is an airplane's path on the map as the airplane f

xeze [42]

Answer:

Distance between the points A and B is 15.52 units.

Step-by-step explanation:

It has been given in the question that an airplane flies along a straight line from City A to City B.

Map has been laid out in the (x, y) coordinate plane and the coordinates of these cities are A(20, 14) and B(5, 10).

Distance between two points A'(x, y) and B'(x', y') is represented by the formula,

d = $\sqrt{(x-x')^{2}+(y-y')^{2}}$

So we plug in the values of (x, y) and (x', y') in the formula,

d = $\sqrt{(20-5)^{2}+(14-10)^{2}}$

d = $\sqrt{(15)^{2}+(4)^{2}}$

d = $\sqrt{225+16}$

d = 15.52

Therefore, distance between the points A and B is 15.52 units.

4 0

3 years ago

suppose x and y vary inversely and y=10 when x=4. write a function that models the variation then find y when x =90

ankoles [38]

X = k/y
4 = k/10
k = 4 x 10 = 40
Thus, x = 40 / y

90 = 40 / y
y = 40/90 = 4/9

4 0

3 years ago

Each week, Darin's Lawn Service mows 90 lawns in 45 hours at a housing c

sweet [91]

9514 1404 393

Answer:

6 h

Step-by-step explanation:

The bottom number in the table is half the top number. The missing value is 6 (hours).

I like to put the variable in the numerator of a proportion. Here, we can write it as ...

t/12 = 45/90

Multiplying by 12 gives ...

t = 12(45/90) = 12(1/2) = 6

It will take Darin 6 hours to mow 12 lawns.

4 0

3 years ago