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RSB [31]
3 years ago
13

3b +2f = 21.50 What is the Answer for B and F

Mathematics
1 answer:
Citrus2011 [14]3 years ago
5 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

b=7.1¯6−2f/3

Isolate the variable by dividing each side by factors that don't contain the variable.

f=10.75−3b/2

Step-by-step explanation:

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If i have 4 times the money of my brother. our totl is d dollars. how much money do each of us have?
mars1129 [50]
Answers 5x=d that’s the answer nothing else
5 0
3 years ago
Anyone know what these two questions are? the subject is scientific notation
tatiyna

Answer:

1. The negative sign on an exponent means the reciprocal. A negative exponent tells how many times to divide a base number.

2. A positive tells how many times to multiply a base number.

could you also give me a brainliest if I am correct.

thanks!

3 0
3 years ago
A pencil is `120` millimeters long.
leva [86]

Given the length of the pencil, the length of the marker is 130.8 millimeters.

<h3>What are percentages?</h3>

Percentage can be described as a fraction of an amount expressed as a number out of hundred. Percentages are represented %.

<h3>How long is the marker?</h3>

Length of the marker = (1 + percentage) x length of the pencil

(1.09) x 120 = 130.8 millimeters

To learn more about percentages, please check: brainly.com/question/25764815

6 0
2 years ago
What is the length of EF in the right triangle below?
Tema [17]

Answer:

A

Step-by-step explanation:

Since the triangle is right use Pythagoras' identity to find EF

The square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

EF² + DF² = DE² ← substitute values

EF² + 12² = 18², that is

EF² + 144 = 324 ( subtract 144 from both sides )

EF² = 180 ( take the square root of both sides )

EF = \sqrt{180} → A

3 0
3 years ago
Mr Garland writes this expression on the board 3/4÷ 2 1/2 expression he ask his students to write a word problem that could be s
ale4655 [162]

Answer:

Answer in explanation

Step-by-step explanation:

Here, we want to write a word problem that could be solved using the expression above.

An example is below;

How many 2 1/2 kg bag of cement can be found in a total of 3/4 kg bag of cement?

4 0
3 years ago
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