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guapka [62]
3 years ago
5

3x - 4 = 2x - 10 x = -6 x = 14 x = -14 x = 6

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
8 0

Answer:

Step-by-step explanation:

3x - 4 = 2x - 10

x - 4 = -10

x = -6 the solution

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14 is what percent of 50?
4vir4ik [10]
We set up a proportion: 14/50= ?/100

Cross multiply: 50*?= 14*100
⇒ ?= 14*100/50= 28

14 is 28% of 50.
3 0
3 years ago
What is the value of x?<br><br> A. 142<br> B. 152<br> C. 76<br> D. 71
Nadusha1986 [10]

Answer:

x has a value of 71, making D the correct answer.

Step-by-step explanation:

Because this is an isosceles triangle, we know that the bottom two angles are equal.  We also know that the sum of the angles inside a triangle will always come to 180°.  With that in mind, we can simply subtract 38° from 180° and divide by two to get the correct answer.

x = (180 - 38) / 2\\= 142 / 2\\= 71

So the correct answer is D, 71 degrees.

8 0
2 years ago
Tiwa spent 1 1/2 hours setting up her computer. It took her 3 times as long to install the software. How long did it take Tiwa t
MrRissso [65]

Answer:

Total time spent by Tiwa to set up the computer and install software = 6 hours

Step-by-step explanation:

Given:

Time spent by Tiwa to set up  her computer = 1\frac{1}{2}\ hours

Time spent to install the software is 3 times the time she took to set up the computer.

To find the total time Tiwa took to set up her computer and install the software.

Solution:

Time spent by Tiwa to install the software can be given as:

⇒ 3\times 1\frac{1}{2} \ hours

<em>In order to multiply mixed numbers we first change them to fractions.</em>

We multiply the denominator to the whole number and add the numerator to it. Then we write the number as numerator of a fraction with the same denominator.

So, 1\frac{1}{2}=\frac{3}{2}

So, we have:

⇒ 3\times \frac{3}{2}\ hours

⇒ \frac{9}{2}\ hours

Total time spent by Tiwa to set up the computer and install software can be given as:

⇒ \frac{3}{2}\ hours+\frac{9}{2}\ hours

Since denominators are same, so we simply add the numerators.

⇒ \frac{3+9}{2}\ hours

⇒ \frac{12}{2}\ hours

⇒ 6\ hours

4 0
3 years ago
Find the length of the missing side. the triangle not drawn to scale. (Image attached)
3241004551 [841]

Answer: 8

Step-by-step explanation:

 The triangle shown in the image attached is a right triangle.

Therefore, to calculate the missing lenght of the triangle you can apply the Pythagorean Theorem, which is shown below:

a^2=b^2+c^2

Where <em>a</em> is the hypotenuse and <em>b</em> and <em>c</em> are the legs.

The problem gives you the value of the hypotenuse and the value of one leg. Therefore, you must solve for the other leg from a^2=b^2+c^2, as following:

17^2=15^2+c^2\\c=\sqrt{17^2-15^2}\\c=8

Therefore, the lenght of the missing side is: 8

6 0
3 years ago
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The 5 in the ten thousandths place is 10 times greater than the 5 in the thousandths place.
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3 years ago
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