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3 years ago

Write your own story problem using mixed numbers. show the solution

2 answers:

6 0

Brian brought cookies to school one day for class. He brought two dozen. His class ate 1 1/2 dozen. How many where left? A: 6 cookies

slega [8]3 years ago

3 0

Answer:

Bryan weighed two pieces of metal for an experiment. The piece of copper weighed $2\frac{4}{5}$ pounds and the piece of zinc weighed $4\frac{3}{5}$ pounds. Calculate the total metal in pounds he used.

Solution:- Weight of copper metal= $2\frac{4}{5}$ pounds

Weight of zinc metal= $4\frac{3}{5}$ pounds

The total weight of the metal he used= $2\frac{4}{5}+4\frac{3}{5}$ pounds

To solve the sum first convert them into like improper fractions

$2\frac{4}{5}\rightarrow\frac{2\times5+4}{5}=\frac{14}{5}$

$4\frac{3}{5}\rightarrow\frac{5\times4+3}{5}=\frac{23}{5}$

Now, The total weight of the metal he used= $\frac{14}{5}+\frac{23}{5}=\frac{37}{5}$ pounds

Ans:- Bryan used $\frac{37}{5}$ pounds of metal.

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2 years ago

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2 years ago

35% is 7 out of what number?

o-na [289]

Answer:

The number is <u>20</u>.

Step-by-step explanation:

In this question, it is said that 35% of a number is equal to 7, then what is that number?

So, let the number be <em>x</em>.

Now, according to the question :

$\begin{gathered} \begin{array}{l} \quad{\dashrightarrow{\sf{35 \% \: of \: x = 7}}}\\\\\quad{\dashrightarrow{\sf{\dfrac{35}{100} \: of \: x = 7}}}\\\\\quad{\dashrightarrow{\sf{\dfrac{35}{100} \times x = 7}}}\\\\\quad{\dashrightarrow{\sf{\dfrac{35 \times x}{100} = 7}}}\\\\\quad{\dashrightarrow{\sf{\dfrac{35x}{100} = 7}}}\\\\\quad{\dashrightarrow{\sf{x = 7 \times \dfrac{100}{35}}}}\\\\\quad{\dashrightarrow{\sf{x =\dfrac{700}{35}}}}\\\\ \quad{\dashrightarrow{\sf{x = \cancel{\dfrac{700}{35}}}}}\\\\ \quad{\dashrightarrow{\sf{x =20}}}\\\\ \quad{\star{\underline{\boxed{\tt{\red{x =20}}}}}} \end{array}\end{gathered}$

Hence, the number is 20.

$\rule{300}{2.5}$

3 0

2 years ago

Read 2 more answers

What are the coordinates of the vertex of the graph of the absolute value function h(x) = 3|x + 5| + 2? A) (5,-2) B) (-5,2) C) (

saw5 [17]

Answer:

B) Vertex = (-5, 2)

Step-by-step explanation:

Vertex can be defined as defined as the point where two lines meet and form a particular angle with each other. It can also be described as the point where a line changes its direction

We can find vertex by two methods:

<h3>1) GRAPH</h3>

We can see in the graph attached below that the line changes its direction at point (-5, 2). So the vertex is (-5,2)

<h3>2) FORMULA</h3>

General form of equation of mod function is given by

y = a |x - h| + k

where Vertex = (h, k)

The given equation is

h(x) = 3 |x + 5| + 2

h(x) = 3 |x - (-5)| + 2

where h = -5 and k = 2

So the vertex is: