3 years ago

Evaluate the expression for x = 3 and y = 5. 12x−3y4x−y12x−3y4x−y PLEASE HELP NEED THIS ASAP

Mathematics

1 answer:

Naddika [18.5K]3 years ago

4 0

-509 I plugged it into a calculator, so hopefully it's right

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When a number is added to 1/5 of itself, the result is 24. The equation that models this problem is n +1/5 n = 24. What is the v

Lady_Fox [76]

For this case we must find the value of n of the following equation:

$n + \frac {1} {5} n = 24$

Taking common factor "n" from the left side of the equation we have:

$n (1+ \frac {1} {5}) = 24\\n \frac {6} {5} = 24$

Multiplying by 5 on both sides of the equation:

$6n = 120$

Dividing between 6 on both sides of the equation:

$n = 20$

Thus, the value of n is 20.

Answer:

$n = 20$

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2. What is the total surface area of the figure below 5.2 cm 6 cm 9 cm 6 cm 6 cm

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Step-by-step explanation:

Area = 5.2 x 6 + 3 x 6 x 9

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= <u>193.2 cm²</u>

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Remember the distance formula

$S=\sqrt{(5+3)^{2}+(-1-2)^{2} }$

$S=\sqrt{8^{2}+(-3)^{2} }$

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$S=\sqrt{73}$

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joanna split three pitchers of water equally among her eight plants.what fraction of a pitcher did each plant get?

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plz help Pru, Piper, and Phoebe share spices in the ratio 5:3:4. If Pru has 24 more spices than Piper, how many spices does Phoe

disa [49]

Answer:

Step-by-step explanation:

Pru, Piper, Phoebe ratio 5:3:4vadded = 12

What this means is Pru has 5/12 of the total amount, Piper has 3/12 of the total amount, and Phoebe has 4/12 of the total amount of spices.

pru = piper + 24

5/12x = 3/12x + 24

5/12x - 3/12x = 24

2/12x = 24

x = 24 / (1/6)

x = 24 * 6

x = 144 spices in total

Pru has : 5/12(144) = 720/12 = 60 spices

Piper has : 3/12(144) = 432/12 = 36 spices

Phoebe has : 4/12(144) = 576/12 = 48 spices

I hope this can help.

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3 years ago

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