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3 years ago

In arithmetic what variables look like

2 answers:

7 0

Variables are used in algebra and other branches of mathematis.

They are represented by letters. Usually ( but not necesserally) the letters at the end of the alphabet like x,y and z.

ad-work [718]3 years ago

4 0

Answer:

Step-by-step explanation:

In Arithmetic Operations variables are used to represent a yet unknown value that is needed for the final result. Variables are used in countless situations and are represented by letters or symbols. These letters and symbols are usually taken from the English Alphabet or the Greek Alphabet and used as variables. Since they are unknown until they are replaced by a value any symbol can be used.

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Safiya deposited money into a bank account that earned 6.5% simple interest each year. After 312 years, she had earned $36.40 in

Svetllana [295]

Answer: If the time is 3 1/2 years (most reasonable assumption)

Her initial deposit was $160

Step-by-step explanation: The basic formula for simple interest is

i = prt i is interest, P is principal (deposit) r is the percentage (converted to a decimal) and t is time, the number of years.

For this question, you have to rearrange the equation to solve for p.

So divide both sides by rt and you have

p = i/rt

Substitute the values given

p = 36.40/(0.065)(3.5)

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3 years ago

Isaiah ran 100 meters on a 200 meter track. He started running on the 19 meter mark. On what Mark did he finish his run

guapka [62]

Answer:

119

Step-by-step explanation:

19+100=119

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3 years ago

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Name the property of multiplication illustrated 112 X 1 = 112

Nat2105 [25]

Answer:

Identity property

Step-by-step explanation: because the product of any number and one is that number

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2 years ago

Referring to the Fig. in Question #40, find the unknown length Y.

icang [17]

Answer:

tan30°=7/x

$\frac{1}{ \sqrt{3} } = \frac{7}{x } \\ x = 7 \sqrt{3}$

cos30°=x/y

$\frac{ \sqrt{3} }{2} = \frac{7 \sqrt{3} }{y} \\ \\ 7 \sqrt{3} \times 2 = \sqrt{3} \times y \\ \frac{7 \sqrt{3 } \times 2}{ \sqrt{3} } = y \\7 \times 2 = y \\ 14 = y$

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2 years ago

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Help me please (pythagorean theorem)

luda_lava [24]

Answer:

13 cm × 12 cm

Step-by-step explanation:

The diagonal of the top or bottom faces of the box is the hypotenuse of a triangle with legs 12 cm and 5 cm. The Pythagorean theorem tells you that diagonal length is ...

d = √(12² +5²) = √(144 +25) = √169 = 13 . . . cm

The width of the divider is 13 cm.

The height of the divider is shown as 12 cm.

The dimensions of the dividing rectangle are 13 cm by 12 cm.

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3 years ago