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3 years ago

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Mathematics

1 answer:

irinina [24]3 years ago

7 0

Answer His grandmother gave him 48 blocks.

Step-by-step explanation:

112 + 125 = 237

285 - 237 = 48

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The mean of 5 scores is 75, four of the numbers are 60, 70, 80, & 85. What is the 5th score?

Ainat [17]

Answer:

Step-by-step explanation:

Your 4 given numbers equal 295. 5x75 is 375. So take 375-295 and you get 80, your 5th number.

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3 years ago

After a party, Brendan had left over pizza. Brendan had one half of a cheese pizza, 3/4 of a sausage pizza, and 2/6 of a peppero

muminat

3/4+2/6+1/2 = 9/12+4/12+6/12 = 19/12 Brendan has 1 7/12 leftover pizzas. THis is achieved by multiplying for a common denominator and adding

19/12-2/3 = 19/12-8/12 = 11/12 Brendan has 11/12 more pizzas than Steve.

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4 years ago

Find the volume. 12 m 6 m 8 m

Simora [160]

Answer:576

Step-by-step explanation:

Volume is all the sides multiplied together. 12 x 6 x 8=576

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3 years ago

Read 2 more answers

Solve the following rational equation plz help!!

Yuri [45]

Answer:

x = $\frac{9}{4}$

Step-by-step explanation:

Given

$\frac{4x}{x+1}$ - $\frac{5}{x}$ = $\frac{4}{x^2+x}$ ← factor denominator

$\frac{4x}{x+1}$ - $\frac{5}{x}$ = $\frac{4}{x(x+1)}$

[ x ≠ 0, x ≠ - 1 as these would make the terms undefined ]

Multiply through by x(x + 1)

4x² - 5(x + 1) = 4

4x² - 5x - 4 = 4 ( subtract 4 from both sides )

4x² - 5x - 9 = 0 ← in standard form

(x + 1)(4x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

4x - 9 = 0 ⇒ 4x = 9 ⇒ x = $\frac{9}{4}$

However, x ≠ - 1 for reason given above, then

solution is x = $\frac{9}{4}$

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3 years ago

Solve the system using elimination. 4x-7y =6 x-7y = 9 The solution is ??

Zigmanuir [339]

Answer:

{x,y} = {-1,-10/7}

Step-by-step explanation:

4 0

3 years ago