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3 years ago

Which proportion can be used to find X?

Mathematics

1 answer:

gtnhenbr [62]3 years ago

5 0

Answer:

Step-by-step explanation:

ehm- not sure what this is asking. any of these can be used to find X, they are different though. is there more to the question or am I just stupid..?.

a) 84

b) 84

c) 36

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2 people can make 2 bicycles in 2 hours.How many people are needed to make 12 bicycles in 6 hours.

Nikolay [14]

6
Explanation because you need 2 people for 2 bikes in 2 hours. You need to multiply by 2 and you get 6 for 12 hours

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4 years ago

-50 POINTS- (5/5) Which scatter plot represents the following data?

ryzh [129]

Answer:

B is plotted correctly

Step-by-step explanation:

A point (1,2) is plotted at (1,3)

B is plotted correctly

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3 years ago

Read 2 more answers

Solve the given system of equations utilizing either the substitution or addition method.

Nataly [62]

Answer:

Value of x=4 and y=-13/3

Step-by-step explanation:

We need to solve the systems of equations

$5x+3y=7 \ and \ \frac{3}{2}x-\frac{3}{4}y =9\frac{1}{4}$

Solving using substitution method:

Let:

$5x+3y=7---eq(1) \\ \frac{3}{2}x-\frac{3}{4}y =9\frac{1}{4}---eq(2)$

Find value of x from eq(1) and put in eq(2)

$5x+3y=7\\5x=7-3y\\x=\frac{7-3y}{5}$

Put value of x in eq(2)

$\frac{3}{2}(\frac{7-3y}{5}) -\frac{3}{4}y =\frac{37}{4}\\\frac{21-9y}{10} -\frac{3}{4}y =\frac{37}{4}\\Taking \ LCM\\\frac{21*2-9y*2-3y*5}{20} =\frac{37}{4}\\\frac{42-18y-15y}{20} =\frac{37}{4}\\42-33y=\frac{37}{4}*20\\42-33y=185\\-33y=185-42\\-33y=143\\y=\frac{143}{-33}\\y=-\frac{13}{3}$

Now, finding value of x by putting value of y in eq(1)

$x=\frac{7-3y}{5}\\x= \frac{7-3(-\frac{13}{3}) }{5}\\x=\frac{7+13}{5}\\x=\frac{20}{5}\\x=4$

So, Value of x=4 and y=-13/3

4 0

3 years ago

How do I do this again? please help

Mars2501 [29]

Answer:

six

Step-by-step explanation:

5 0

3 years ago

Which expressions are equal to 10 to the 5th power?

larisa [96]

Hey there!

10 to the fifth power is equivalent to the expression:

10 x 10 x 10 x 10 x 10 because you are multiplying 10 by 10 5 times.

Hope this helps you.
Have a great day!

4 0

4 years ago