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Genrish500 [490]
3 years ago
7

Parker has quarters and dimes in his piggy bank he has 4 more dimes than quarters and he has a total of $7.05 in his bank how ma

ny dimes and quarters does Parker have
Mathematics
2 answers:
den301095 [7]3 years ago
3 0
Parker has 23 dimes and 19 quarters.
garri49 [273]3 years ago
3 0

Answer:

No. of quarters=19

No. of dimes = 23

Step-by-step explanation:

1 quarter is  25  cents  and  1  dime is  10  cents .

Let the number of quarters  =  x. Then, the number of dimes  =  x + 4 . So

( x ⋅ 25 ) + ( x+ 4 )⋅ 10 = $ 7.05 = 705 cents.  25 x + 10 x + 40 = 705   35 x = 665  x =  665  

35 =  19

Parker has  19  quarters and  19 + 4 = 23  dimes in all.

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Solve the following:<br> a. 4x^2 + 5x + 3 = 2x^2 − 3x<br> b. c^2 − 14 = 5c
Jet001 [13]

Answer:

(a) x = -0.418 , -3.581

(B) c = 6.855, -1.855

Step-by-step explanation:

(A) We have given equation 4x^2+5x+3=2x^2-3x

2x^2+8x+3=0

On comparing with standard quadratic equation ax^2+bx+c

a = 2, b = 8 and c = 3

So roots of the equation will be x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-8\pm \sqrt{8^2-4\times 2\times 3}}{2\times 2}=\frac{-8\pm 6.324}{4}=-0.418,-3.581

(b) c^2-14=5c

c^2-5c-14=0

a = 1, b = -5 and c= -14

So c=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-(-5)\pm \sqrt{(-5)^2-4\times 1\times (-14)}}{2\times 1}=\frac{5\pm 8.71}{2}=6.855,-1.855

7 0
3 years ago
Where does the square root of 40 go on a 1-10 number line?​
kaheart [24]

Answer:

Step-by-step explanation:

36 < 40 < 49\\\\6 < \sqrt{40}  < 7\\

Here is the exact construction of √40 using Pythagorean 's theorem

8 0
2 years ago
Y=x-4 and -4x-6y=-16
denis-greek [22]

Answer:

x=4

y=0

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
877 to binary, octal, and hexadecimal
statuscvo [17]
Our number system is in base 10, which means that each digit has a value that is a multiple of 10.

For ex:
877 literally means
8  7  7   where each digit is multiplied by
10^ 2   10 ^1   10^0  respectively
which is 8 * 10^ 2 + 7 * 10^1 + 7 * 10^0 = 8 * 100 + 7 * 10 + 7 * 1 = 800 + 70 + 7 = 877

Binary is in base 2, so each of its digits (which can only be 0 or 1) are multiplied by multiples of 2 (2^0, 2^1, 2^2 ect.)

To find what 877 is in binary you can do the following:
the symbol : means divide and i'll write the quotient + the remainder

877 : 2 = 438 + 1  (438 is the quotient, 1 is the remainder)
438 : 2 = 219 + 0
219 : 2 = 109 + 1
109 : 2 = 54 + 1
54 : 2 = 27 + 0
27 : 2 = 13 + 1
13 : 2 = 6 + 1
6 : 2 = 3 + 0
3 : 2 = 1 + 1
1: 2 = 0 + 1

now write ALL off the remainders from BOTTOM to TOP:
1101101101

use a similar step for octal (use 8 instead of 2 as the divisor) and hexidecimal (use 16 instead of 2 as the divisor) 


6 0
3 years ago
Order these numbers from least to greatest. −14.2 , −14313 , 14110 , −202
Firlakuza [10]
-14313,-202,-14.2,14110
4 0
3 years ago
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