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3 years ago

Translate the following into an inequality: k plus 4 is at most 6 See pic for answer choices

Mathematics

1 answer:

jarptica [38.1K]3 years ago

4 0

The answer is the third one

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A jar contains n nickels and d dimes. There is a total of 253 coins in the jar. The value of the coins is $15.95. How many nicke

defon

There are 187 nickels and 66 dimes in the jar.

Step-by-step explanation:

Given,

Total coins = 253

Value of coins = $15.95 = 15.95*100 = 1595 cents

Value of each nickel = 5 cents

Value of each dime = 10 cents

According to given statement;

x+y=253 Eqn 1

5x+10y=1595 Eqn 2

Multiplying Eqn 1 by 5

$5(x+y=253)\\5x+5y=1265\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(5x+10y)-(5x+5y)=1595-1265\\5x+10y-5x-5y=330\\5y=330$

Dividing both sides by 5

$\frac{5y}{5}=\frac{330}{5}\\y=66$

Putting y=66 in Eqn 1

$x+66=253\\x=253-66\\x=187$

There are 187 nickels and 66 dimes in the jar.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

5 0

4 years ago

Solve the formula V=h for r.

AnnyKZ [126]

Answer:

The chosen topic is not meant for use with this type of problem. Try the examples below.

cos

(

)

−

Step-by-step explanation:

5 0

4 years ago

SIMPLIFY and SHOW WORK THANKS 3∙[ 9 – 2∙ (7 – 8)]

Zepler [3.9K]

Answer:

Step-by-step explanation:

3∙[ 9 – 2∙ (7 – 8)]

PEMDAS,

Parentheses, start from the inside out

3∙[ 9 – 2∙ (-1)]

3∙[ 9 +2]

3* 11

8 0

4 years ago

Which expression is a cube root of -1+ i sqrt 3? (multiple choice)

lara31 [8.8K]

Answer:

see below

Step-by-step explanation:

Find the magnitude (-1)^2 + (sqrt3)^2 = m^2 m = 2

find the angle arctan (sqrt3/-1) = 120 degrees

the cube root would then be

$\sqrt[3]{2}$ (cos 40 + isin 40)

6 0

2 years ago

10. In markets, what is the signal that allocates goods and

dalvyx [7]

A) price is the answer

6 0

3 years ago