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3 years ago

How many elements are in the set (a,b, c.?

Mathematics

1 answer:

diamong [38]3 years ago

5 0

There are three elements in that set.

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Write the verbal sentence as an equation. Then solve.

Juli2301 [7.4K]

Answer:

$\frac{x}{-8} = 7$

-12x = 60

Step-by-step explanation:

This is the type of problem that you just have to do a bunch of times until you get it right -- I don't think there's anything I can tell you that'll help you immediately. Ask for your teacher for more exercises of this sort or look it up online.

Good luck!

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3 years ago

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Thomas has $6.35 in dimes and quarters. The number of dimes is three more than three times the number of quarters. How many quar

Misha Larkins [42]

q = quarters

dimes is 3 plus 3times quarters

so 3q is 3 times quarters

so 3q+3 would be 3 times plus 3

equation is 3q+3

the value would be 10(3q+3)

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3 years ago

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The next three terms of the sequence 20, 40, 80, 160,… are 320, 640, and 1280.

hram777 [196]

Correct

Its a geometric sequence with common ratio 2.

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3 years ago

ASAP PLEASE ILL GIVE BRAINLIEST

Brilliant_brown [7]

Answer:just order them

Step-by-step explanation:

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3 years ago

Which figure has the same area as the parallelogram shown below? A. A triangle with a base of 4 mm and a height of 20 mm B. A tr

Arisa [49]

<h2>Answer: A trapezoid with bases of 6 mm and 14 mm and a height of 8 mm </h2>

The parallelogram in the figure has an area of $80mm^{2}$ , according to the following formula, which works for all rectangles and parallelograms:

$A_{parallelogram}=(b)(h)$ (1)

Where $b$ is the base and $h$ is the height

The<u> area of a triangle</u> is given by the following formula:

$A_{triangle}=\frac{1}{2}(b)(h)$ (2)

So, for option A:

$A_{triangle}=\frac{1}{2}(4mm)(20mm)=40mm^{2} \neq 80mm^{2}$

Now, the <u>area of a trapezoid </u>is:

$A_{trapezoid}=\frac{1}{2}(b_{1}+ b_{2})(h)$ (3)

For option B:

$A_{trapezoid}=\frac{1}{2}(15mm+25mm)(2 mm)=40mm^{2} \neq 80mm^{2}$

For option C:

$A_{trapezoid}=\frac{1}{2}(6mm+14mm)(8 mm)=80mm^{2}$ >>>>This is the correct option!

For option D:

$A_{rectangle}=(30mm)(8mm)=240mm^{2} \neq 80mm^{2}$

<h2>Therefore the correct option is C</h2>

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3 years ago