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3 years ago

Solve for x. 5+3(4x - 1) = 14 Enter your answer in the box. X=

Mathematics

2 answers:

prohojiy [21]3 years ago

5 0

Answer:

5+12x-3 = 14

12x = 14 -5+3

12x = 12

x = 1

Semmy [17]3 years ago

4 0

Answer:

X=1. I did mental math. I am sure.

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Anita purchased a couch that was priced at $700. She will also have to pay 6% sales tax. How much will she pay in total for the

Zolol [24]

Answer:

$742

Step-by-step explanation:

To solve this, you need to figure out what 6% of 700 dollars is and then add that to 700. The easiest way to find the percentage of a number is to set it up in the equation:

6/100 = x/700 where 6 is the percentage of 700 (out of 100 because you can only get up to 100 percent in this case) and x is 6 percent of 700. when you cross multiply, you get 100x = 4200. Then you divide both sides by 100 to get x by itself. This will give you x = 42 Add this to 700 for 742 as the total amount that will be paid. Sorry if this first half was a little confusing

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3 years ago

I need help knowing how to show the work and how to get the answer and the answer it self

Morgarella [4.7K]

Find the separate areas.

We have a triangle with base 5 cm and height 5 cm, calculate the area:

$\sf A=\dfrac{1}{2}bh$

Plug in what we know:

$\sf A=\dfrac{1}{2}(5)(5)$

Multiply:

$\sf A=12.5~cm^2$

Now for the two quarter circles, we know that if we put these two together we will end up with a semi-circle with radius 5 cm. The formula for the area of a circle is:

$\sf A=\pi r^2$

A semi-circle is half of a whole circle, so the formula for the area of it must be:

$\sf A=\dfrac{1}{2}\pi r^2$

Now plug in what we know(use 3.14 to approximate for pi):

$\sf A\approx\dfrac{1}{2}(3.14)(5)^2$

Simplify the exponent:

$\sf A\approx\dfrac{1}{2}(3.14)(25)$

Multiply:

$\sf A\approx 39.25~cm^2$

Now add this to the area of the triangle to find the approximate area of the entire figure(round to the nearest tenth):

$\sf 39.25+12.5=\boxed{\sf 51.8~cm^2}$

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3 years ago

Someone pls help +10 and brainliest if correct

sergey [27]

Answer:

Step-by-step explanation:

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2 years ago

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mariarad [96]

You can find the unit rate when given a rate by setting up a proportion of the rate equal to how many per one.

40 miles per 2 hours = 20 miles per one hour.

20 miles/hour is a unit rate. (How many per one?)

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3 years ago

Estimate a 5% tip on a bill of $81.24 by first rounding the bill amount to the nearest ten dollars.

Helga [31]

A five percent tip of 81.24 would be 85.30, and rounded to the nearest ten dollars, it would be 90 even.

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4 years ago

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