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natka813 [3]
3 years ago
12

Pls help me with this. You need to graph the equation or smt

Mathematics
1 answer:
Sophie [7]3 years ago
6 0
Photo math will help stg
have a good day
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You bought a magazine for $5 and some notepads for $3 each. You spent a total of $26. How many notepads did you buy?
german

Answer:

7 notepads

Step-by-step explanation:

5 + 3x = 26

Subtract constant (5)

3x = 21

Divide by coefficient (3)

x=7

8 0
3 years ago
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What is the value of n<br><br> 2.3x10^9 = (1x10^3) (2.3x10^n)
n200080 [17]
Here's one shortcut:

2.3×10^9=1000(2.3×10^6) because your adding 3 more zeros to 2300000
6 0
3 years ago
57428799953 x 4635579813=???
nadya68 [22]

Answer:

2.66216x10^20

Step-by-step explanation:

4 0
3 years ago
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(20pts) the monthly average new york city temperature in fahrenheit are given below. Mont h jan feb mar apr may jun jul aug sep
HACTEHA [7]

Mean of the low is approximately 47.7  Median of the low is 45 and 50 or 47.5

3 0
3 years ago
Solve the simultaneous equations<br> x-6y=5<br> xy - 2y2 = 6<br> -<br> Show clear algebraic working.
mojhsa [17]

Answer:

(- 7, - 2 ) , (9.5, 0.75 )

Step-by-step explanation:

Given the equations

x - 6y = 5 ( add 6y to both sides )

x = 5 + 6y → (1)

xy - 2y² = 6 → (2)

Substitute x = 5 + 6y into (2)

(5 + 6y)y - 2y² = 6 ← distribute and rearrange left side

5y + 6y² - 2y² = 6

4y² + 5y = 6 ( subtract 6 from both sides )

4y² + 5y - 6 = 0 ← in standard form

(y + 2)(4y - 3) = 0 ← in factored form

Equate each factor to zero and solve for y

y + 2 = 0 ⇒ y = - 2

4y - 3 = 0 ⇒ 4y = 3 ⇒ y = \frac{3}{4} = 0.75

Substitute these values into (1) for corresponding values of x

y = - 2 : x = 5 + 6(- 2) = 5 - 12 = - 7 ⇒ (- 7, - 2 )

y = 0.75 : x = 5 + 6(0.75) = 5 + 4.5 = 9.5 ⇒ (9.5, 0.75 )

7 0
2 years ago
Read 2 more answers
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