All categories

3 years ago

Solve for b. -t = 9(t - 10) (WILL GIVE BRAINLIEST)

Mathematics

2 answers:

coldgirl [10]3 years ago

5 0

Answer:

Do you mean solve for t?

If you do, the answer is 9.

Step-by-step explanation:

If we expand the equation out, we get:

-t = 9t - 90

If we move the -90 over to the left side and the -t to the right side, we get:

90 = 10t

Dividing both sides by 9, we get:

t = 9

zavuch27 [327]3 years ago

3 0

T=9
The anser is this and its easy first multiply

You might be interested in

Why is this undefined

Burka [1]

Because you can’t divide something by zero!
Hope this helps!

7 0

3 years ago

Read 2 more answers

Can you use use the formula A = 1/2 x b x h to find the area of any triangle? Explain.

Morgarella [4.7K]

You can use it to find the area of a right triangle because a right triangle is basically a rectangle cut in half diagonally. However, this formula does not apply to all triangles because those that are not right triangles don't have a base or height, they're not really a rectangle. Because the formula for a rectangle's area is bxh, a right triangle is half of that. I hope this made sense and was helpful. :)

3 0

3 years ago

Read 2 more answers

A motorboat travels 168 kilometers in 4 hours going upstream. It travels 280 kilometers going downstream in the same amount of t

Grace [21]

Answer:

The speed of the boat is 56 km/hr

The rate of the current is 14 km/hr

Step-by-step explanation:

We are given the following;

Distance traveled upstream = 168 km
Time taken to travel upstream = 4 hours
Distance traveled down stream = 280 km
Time taken down stream = 4 hours

We are required to determine the speed of the boat in still water and the speed of the current.

We are going to take;

Speed of the boat as = x km/hr

Rate of flow of current = y km/hr

We can determine the speed of the boat upstream;

Speed = Distance ÷ time

= 168 km ÷ 4 hours

= 42 km/hr

But, the speed upstream is given by (x - y) km/hr

Therefore; ( x-y) km/hr = 42 km/hr ......................... Eqn 1

Speed of the boat down stream

speed = 280 km ÷ 4 hours

= 70 km/hr

But, the speed downstream is given by (x+y) km/hr

Therefore, x+y km/hr = 70 km/hr ........................... Eqn 2

Solving Eqn 1 and Eqn 2 simultaneously;

x - y = 42

x + y = 70

Eliminating x

-2y = - 28

y = 14 km/hr

Solving for x,

x = 42 + y

= 42 + 14

= 56 km/hr

Therefore, the speed of the boat is 56 km/hr while the rate of the current is 14 km/hr

8 0

4 years ago

What is 134.8 million in standard form?

kumpel [21]

First we shall convert those millions to complete number.

We know 1 million is 1,000,000

So 134.8 millions shall be

= 134.8 × 1,000,000

= 134,800,000

Now we shall convert this to the standard form.

As there are 8 digits after 1, we shall have 8 as the exponent of 10 in the standard form

134,800,000

= 1.348 × $10^{8}$

134.8 million in standard form is 1.348 × $10^8$

6 0

4 years ago

Why can any two opposite faces of a rectangular prism be called the bases

IrinaVladis [17]

Answer:

Step-by-step explanation:

The properties of prisms are similar for every kind of prism with each one defined by the shape that makes up the base of the prism. Any polygon can be the base of a prism.

A rectangular prism is a three-dimensional solid with several properties relating to its shape, volume and surface area. Rectangular prisms, in particular, are one of the most fundamental and common shapes in three-dimensional geometry and are also used in fields such as carpentry and graphic design.

Prism: Math Definition

A prism is a type of three dimensional polyhedron. It has two "bases" that are parallel to each other. These bases are the same type of polygon. The other faces (aka the "sides") of the prism are parallelograms (this is true no matter what shape the bases are).

Hope this helps ✌️

6 0

3 years ago