All categories

1 year ago

2.5(10x - 16) = 5 What decimal represents the solution to the equation?

Mathematics

1 answer:

Pavlova-9 [17]1 year ago

4 0

2.5(10x - 16) = 5

2.5 is multiplying on the left, then it will divide on the right

10x - 16 = 5/2.5

10x - 16 = 2

16 is subtracting on the left, then it will add on the right

10x = 2 + 16

10x = 18

10 is multiplying on the left, then it will divide on the right

x = 18/10

x = 1.8

You might be interested in

I need the answer ASAP! Please help me!

masha68 [24]

Answer:

Please check the explanation.

Step-by-step explanation:

Determining the length of BC

From the diagram, it is clear that

The point B is located at (-8, 10) and point C is located at (8, 10)

Since points A and C are located on a horizontal straight line. Thus, the length of BC can be determined by counting the x-axis units from reaching x = -8 to x = 8. i.e. 8-(-8) = 8+8 = 16

Thus, the length of BC = 16 units

Determining the length of CD

Given

C (8, 10)

D (2, -2)

The distance between C(8, 10) and D(2, -2)

$\mathrm{Compute\:the\:distance\:between\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}$

$CD=\sqrt{\left(2-8\right)^2+\left(-2-10\right)^2}$

$=\sqrt{6^2+12^2}$

$=\sqrt{36+144}$

$=\sqrt{180}$

$=\sqrt{36\times 5}$

$=6\sqrt{5}$

Thus, the length of CD $=6\sqrt{5}$ units

Determining the length of ED

Given

E (-8, -4)

D (2, -2)

The distance between E(-8, -4) and D(2, -2)

$ED=\sqrt{\left(2-\left(-8\right)\right)^2+\left(-2-\left(-4\right)\right)^2}$

$=\sqrt{10^2+2^2}$

$=\sqrt{100+4}$

$=\sqrt{104}$

$=\sqrt{26\times \:4}$

$=2\sqrt{26}$

Thus, the length of ED $=2\sqrt{26}$ units

Determining the length of EB

From the diagram, it is clear that

The point E is located at (-8, -4) and the point B is located at (-8, 10)

Since points E and B are located on a vertical straight line. Thus, the length of EB can be determined by counting the y-axis units from reaching y = -4 to y = 10. i.e. 10-(-4) = 10+4 = 14

Thus, the length of EB = 14 units

4 0

3 years ago

-4x-3y=5 3x-2y=-8 Solve by substitution

Xelga [282]

Answer:

look at the picture ..........

5 0

3 years ago

Read 2 more answers

scientists determined that antarctica's average winter tempeture was -34.44c .the difference between this tempeture and antarcti

jekas [21]

Difference between average temperature and highest recorded = 49.44

Highest - Average = 49.44 Let it be H - A = 49.44

H - (-34.44) = 49.44

H + 34.44 = 49.44

H = 49.44 - 34.44 = 15

Highest recorded = 15°C.

5 0

3 years ago

Megan has 32 bottle caps. She wants to display the bottle caps in rows, with same number of bottle caps in each row. How many di

lisabon 2012 [21]

She can go by 5's or 7's

8 0

3 years ago

Please answer whats on the screenshot for brainliest

belka [17]

Answer:

the third

Step-by-step explanation:

3 0

3 years ago