Please help please help me

navik [9.2K]

Answer:

The answer should be 1500g I think.

6 0

3 years ago

A metalworker has a metal alloy that is 15% copper and another alloy that is 75% copper. How many kilograms of each alloy shou

lisov135 [29]

48 kilograms of 15 % copper is combined with 72 kilograms of 75 % copper to create 120 kg of a 51% copper alloy

<em><u>Solution:</u></em>

Let "x" be the kilograms of 15 % copper

Then, (120 - x) be the kilograms of 75 % copper

Then, according to question,

"x" kilograms of 15 % copper is combined with (120 - x) kilograms of 75 % copper to create 120 kg of a 51% copper alloy

Thus we frame a equation as:

15 % of x + 75 % of (120 - x) = 51 % of 120

<em><u>Solve the equation for "x"</u></em>

$15 \% \times x + 75 \% \times (120-x) = 51 \% \times 120\\\\\frac{15}{100} \times x + \frac{75}{100} \times (120-x) = \frac{51}{100} \times 120\\\\0.15x + 0.75(120-x) = 0.51 \times 120\\\\0.15x + 90 - 0.75x = 61.2\\\\0.6x = 90 - 61.2\\\\0.6x = 28.8\\\\Divide\ both\ sides\ by\ 0.6\\\\x = 48$

Thus 48 kilograms of 15 % copper used

Then, (120 - x) = (120 - 48) = 72

Thus, 72 kilograms of 75 % copper is used

4 0

3 years ago

Roger makes 70 gallons of pink paint by mixing 21 gallons of white paint. what part of every gallon is from red paint?

forsale [732]

There are 49 gallons of red paint.
I figured it out by doing the following:

$70 \: - \: 21 \: = \: 49$
If you subtract the gallons of pink paint (21) from the total number of gallons (70), then you get the number of gallons of red paint (49) because 49 + 21 = 70. I hope that helps :)

8 0

3 years ago

I need help with geometry.<br> Find x.

I am Lyosha [343]

Answer:

Part 9) $x=5$

Part 10) $x=-9$

Step-by-step explanation:

we know that

The <u><em>Midpoint Theorem</em></u> states that: The segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side

Part 9) we know that

Point Q is the midpoint segment XY (QY=QX)

Point R is the midpoint segment XW (RW=RX)

Applying the Midpoint Theorem

RQ is parallel to WY

and

$RQ=\frac{1}{2}WY$

we have

$RQ=2x-3\\WY=x+9$

substitute

$2x-3=\frac{1}{2}(x+9)$

solve for x

$4x-6=(x+9)$

$4x-x=9+6$

$3x=15$

$x=5$

Part 10) we know that

Point B is the midpoint segment TS (BS=BT)

Point C is the midpoint segment RS (CS=CR)

Applying the Midpoint Theorem

BC is parallel to TR

and

$BC=\frac{1}{2}TR$

we have

$BC=x+19\\TR=x+29$

substitute

$x+19=\frac{1}{2}(x+29)$

solve for x

$2x+38=(x+29)$

$2x-x=29-38$

$x=-9$

5 0

3 years ago

Which title best completes the organizational chart of Maryland government

Misha Larkins [42]

A title which best completes the organizational chart of Maryland government is: A. Voters of Maryland Legislative branch.

<h3>What is an organizational structure?</h3>

An organizational structure can be defined as a strategic process that involves the division of a business firm or an organization into multiple functional units.

<h3>What is an organizational chart?</h3>

An organizational chart is also referred to as an organogram and it can be defined as a diagram that is used to graphically represent the hierarchical structure of a business firm or an organization and the relationships of all the jobs or positions within it.

<h3>The types of an organizational chart.</h3>

In Business management, there are four (4) main types of organizational chart and these include the following:

Functional top-down chart

Flat chart

Divisional chart

Matrix chart

In this scenario, we can infer and logically deduce that a title which best completes the organizational chart of Maryland government is "Voters of Maryland Legislative branch."

Read more on organizational chart here: brainly.com/question/1078082

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Complete Question:

Which title best completes the organizational chart of Maryland government?

A. Voters of Maryland Legislative branch

B. Voters of Maryland Judicial branch

C. Voters of Maryland Judges branch

D. Voters of Maryland Courts branch

7 0

2 years ago