3 years ago

Solve for x. 3(x + 2) + 4(x - 5) = 10 x = 36/7 x = 24/7 x = 16/7 x = 9/7

Mathematics

1 answer:

IRISSAK [1]3 years ago

5 0

3(x + 2) + 4(x - 5) = 10

Use the distributive property:

3x + 6 + 4x - 20 = 10

Combine like terms:

7x -14 = 10

Add 14 to both sides:

7x = 24

Divide both sides by 7:

x = 24/7

You might be interested in

What is 2.26 (6 repeating) as a fraction?

Gekata [30.6K]

Answer:

34/15

Step-by-step explanation:

I recognized the form of this decimal as a number divided by 3. However, when I multiplied it by 3, I got 6.8. This means that the fraction was not fully simplified. Multiplying by 5, I got 34. Since I had to multiply by 3 and then by 5 to get there, I multiplied by a total of 15. Hope this helps!

3 0

3 years ago

A function passes through the points (2,9) and (7,34). What are its rate of change and initial value?

Bess [88]

Answer:

The rate of change: 1/5

Initial value: (0,-1)

Step-by-step explanation:

The rate of change is easily 5/25, we just have to simplify it to 1/5.

To get the intial value, just subtract (2,9) by the rate of change twice.

5 0

2 years ago

It takes 5 hours for a boat to travel 25 miles upstream. The same boat can travel 30 miles downstream in 2 hours. Find the speed

loris [4]

Answer:

so 5 miles upstream and 15 miles downstream

Step-by-step explanation:

25/5=5

30/2=15

3 0

1 year ago

Joey is 5 years less than three times the age of his son. Joey is 43 years old.

Vikki [24]

Answer:

amogus

Step-by-step explanation:

6 0

2 years ago

Tessa claims that a rotation of 90° clockwise about the center of some polygons will carry the polygon onto itself. Select two p

DochEvi [55]

It's square and rhombus

5 0

3 years ago

Read 2 more answers