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Amanda [17]
2 years ago
6

9^a-5 = 12 pls answer

Mathematics
1 answer:
xenn [34]2 years ago
5 0

Answer:

a=1.29 approx

Step-by-step explanation:

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I need to know how to solve this
Greeley [361]
Vertical angles are congruent, so
107=3x-4
3x=111
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8 0
3 years ago
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the ratio of pennies to quarters in a piggy bank is 14:3. if there are 51 quarters in the bank, how many pennies are there
malfutka [58]

The number of pennies in bank is 42

<em><u>Solution:</u></em>

Given that ratio of pennies to quarters in a piggy bank is 14 : 3

Let 14x be the number of pennies in piggy bank

Let 3x be the number of quarters in piggy bank

<em><u>To find: number of pennies</u></em>

Given that there are 51 quarters

number of pennies in piggy bank + number of quarters in piggy bank = 51

14x + 3x = 51

17x = 51

x = 3

number of pennies = 14x = 14(3) = 42

Thus the number of pennies in bank is 42

4 0
2 years ago
What is y=3/8x-5<br> in a table of values
iogann1982 [59]
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6 0
3 years ago
Use graphing to find the solution of the system of equations. -x^2+y=1, -x+y=2
vladimir2022 [97]

ANSWER


x=-0.62 or x=1.62




EXPLANATION


For -x^2+y=1



We make y the subject to obtain,



y=x^2+1


We can easily graph this function, because we just have to transform the graph of y=x^2 by shifting the intercept up to 1.



As for the straight line, -x+y=2,


We find the intercepts as follows,



When y=0,x=-2.


When x=0,y=2.


We plot the points (-2,0) and


(0,2).



We now draw the two graphs on the same graph sheet. The intersection of the two graphs gives the solution to be


x=-0.62 or x=1.62


See graph




5 0
3 years ago
Folders are on sale for $0.15 each. Notebooks are $4.25 each. There are 225 students in 7th grade. What is the total amount it w
Harrizon [31]

Answer:

$1023.75

Step-by-step explanation:

2*.15=.30 + 4.25= 4.55

4.55 * 225 = 1023.75

7 0
3 years ago
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