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3 years ago

Darnell has $1.20 in quarters and nickels. He has 8 coins altogether. How many coins of each kind does he have?

Mathematics

2 answers:

dexar [7]3 years ago

8 0

Answer:

4 quarters

4 nickels

Step-by-step explanation:

Romashka [77]3 years ago

5 0

4 quarters 4 nickels

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Given f(x)=5-3x, if f(x)=-19, find x

Dafna1 [17]

X would equal 8

Step-by-step explanation:

5-3(8) = -19

5 multiplied by negative 3 times 8 equals negative 19

negative 3 times 8 equals negative 24 plus 5 equals 19

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3 years ago

Math quiz with angles again

ss7ja [257]

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2 years ago

Raoul has to finish a 473-page book in a week. He decides to read the same number of pages each weekday and 30 extra pages on Sa

hodyreva [135]

Answer:

$59$ pages

Step-by-step explanation:

Variable:

x = number of pages he has to read on a weekday

x + 30 = The number of pages read on Saturday and Sunday

$5x+2(x+30) = 473$

$==> 5x + 2x + 60 = 473$

$==> 7x =413$

$==> x = 59$

Meaning that Raoul has to read 59 pages on Wednesday

6 0

3 years ago

I need help before 10:00pm tonight please help

Mama L [17]

Answer: she is thinking the line might go through the dots on the graph

Step-by-step explanation:

Because when you put the line through the dots on the graph it looks more efishiant. Sorry bad spelling.

8 0

2 years ago

What is the slope of a perpendicular line 2x + y = 6<br><br> is answer -2

Firdavs [7]

Answer:

The slope that is perpendicular to the line will be:

$m_2=+\frac{1}{2}$

Step-by-step explanation:

Given the equation

$2x\:+\:y\:=\:6\:$

We know that

$y=mx+b$ is the slope-intercept form of a line where m is the slope and b is the y-intercept.

So, writing the equation in the slope-intercept form

$2x\:+\:y\:=\:6\:$

$\:y=-2x+6$

here

$m=-2$ ∵ $y=mx+b$

As we know that for perpendicular lines, one slope is the negative reciprocal of the other.

Therefore, the slope that is perpendicular to the line will be:

$m_2=+\frac{1}{2}$

3 0

2 years ago