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3 years ago

What is the value of x in 7(3x - 13)=224 ? Will mark brainliest!

Mathematics

1 answer:

coldgirl [10]3 years ago

3 0

7(3x-13)=224

21x-91 = 224

21x = 315

x = 315 / 21

x = 15

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2 years ago

Rudolph and the other reindeer are pulling Santa's sleigh that has a mass 1

finlep [7]

Answer:

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Step-by-step explanation:

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2 years ago

i am measurng two line segments the first line is 30centi meter long the second line segment is 500milli meter how long are the

Alexeev081 [22]

Answer

Find out the how long are the two line segments together answer in cm .

To prove

As given

i am measurng two line segments the first line is 30centimeter long.

The second line segment is 500 millimeter .

1 millimeter = 0.1 centimeter

Now convert 500 millimeter into centimeter .

500 millimeter = 500 × 0.1 centimeter

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3 years ago

I could really use your help , 25 POINTS!!

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since line AB and CD make all right angles (given) angles 6+7+8 will equal 90 degrees.

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3 years ago

Sheila, janice, and katen, working together at the same rate, can complete a job in 3 1/3 days. Working at the same rate, how mu

pychu [463]

Answer:

Janice and Karen could do in 1 day:

20% of the job.

Step-by-step explanation:

To identify how much of the job could janice and caren do in 1 day, first, we must find how much of the job make just 1 person at the same rate:

If three persons make a job in 3 1/3 days, 1 person make the job in x:

3 persons ⇒ 3 1/3 days or 10/3 days
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Then:

$x=\frac{1 person*\frac{10}{3}days }{3 persons}$ (we cancel the unit "persons")
$x=\frac{\frac{10}{3}days }{3}$
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Just a person would need 10 days to complete a job, now, we're gonna divide this value in 2 to obtain the time that need two persons to complete a job:

Time to complete a job between 2 persons = $\frac{10}{2}days$
Time to complete a job between 2 persons = 5 days

How two persons need 5 days to complete a job (in this case, the two persons are Janice and Karen), we can make a simple rule of three to obtain the percentage made in 1 day:

5 days ⇒ 100% of a job
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$x=\frac{1*100}{5}$ (you can use the % if you want, the result is the same)
$x=\frac{100}{5}$
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As you can see, Janice and Karen just in a day could do 20% of the job.

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2 years ago