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aleksandrvk [35]
3 years ago
7

The piggy bank contains 16 dimes, 8 nickels, and 12 quarters. This morning you removed 3 dimes and 5 nickels.Which expression co

rrectly shows the amount remaining in the piggy bank?
Mathematics
1 answer:
Bond [772]3 years ago
3 0
16•0.10= 1.60$
8•0.05= 0.40¢
12•0.25= 3.00$

1.60$+0.40¢+3.00$= 5.00$

3•0.10= 0.30¢
5•0.05= 0.25¢

0.30¢+0.25¢= 0.55¢

5.00$-0.55¢= 4.45$

4.45$ is left in the piggy bank.
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Answer:

31.5 acres

Step-by-step explanation:

7 0
3 years ago
write an equation for the line passing through the point (3,5) and perpendicular to the line y=-1/3x+5
jarptica [38.1K]

Answer:

y= 3x -4

Step-by-step explanation:

The equation of a line can be written in the form of y=mx +c, where m is the slope and c is the y-intercept. This is also known as the slope-intercept form.

y =  -  \frac{1}{3} x + 5

Since the given equation is in the slope-intercept form, we can identify its slope from the coefficient of x.

Slope= -⅓

The product of the slopes of perpendicular lines is -1.

Slope of perpendicular line

=  - 1 \div ( -  \frac{1}{3} )

=  -  1 \times ( -  \frac{3}{1} )

= 3

Thus, the equation of the perpendicular line is given by:

y= 3x +c

Substitute a pair of coordinates that the line passes through to find the value of c.

When x= 3, y= 5,

5= 3(3) +c

5= 9 +c

<em>Minus 9 on both sides:</em>

c= 5 -9

c= -4

Hence, the equation of the perpendicular line is y= 3x -4.

Additional:

For more questions on equation of perpendicular lines, do check out the following!

  • brainly.com/question/2141803

4 0
2 years ago
5x-2y=15<br> 2x+6y=-11<br> solve by substitution or equal values method
g100num [7]

Answer:

Point form -

(2-\frac{5}{2})

Equation form -

x=2, y=-\frac{5}{2}

Step-by-step explanation:

if you have any questions feel free to ask

5 0
3 years ago
What is 820 divided by 42
Dafna11 [192]
The correct answer to 820/42= 19.52 (rounded answer would be 20). I hope I helped :)
3 0
3 years ago
Read 2 more answers
How to solve this question
vichka [17]
#4 has the same y intercept
If you put the equations in y = mx + b you will see that it has a y intercept of -3
3 0
3 years ago
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