2 years ago

Please help! 15 pts!

Mathematics

1 answer:

yulyashka [42]2 years ago

7 0

Answer:

6 years

their average age now is 15

so, in six years the average age will be 21

Step-by-step explanation:

If im wrong you have my regrets

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Cube root<br><img src="https://tex.z-dn.net/?f=%20-%204%20%5Csqrt%5B3x%5D%7Bx%20%2B%2025%20%3D%2035%7D%20" id="TexFormula1" titl

Taya2010 [7]

Answer:

$\large\boxed{x=-\dfrac{44,475}{64}}$

Step-by-step explanation:

$-4\sqrt[3]{x+25}=35\\\\\left(-4\sqrt[3]{x+25}\right)^3=35^3\\\\-4^3(x+25)=42,875\\\\-64(x+25)=42,875\qquad\text{use distributive property}\\\\-64x-1,600=42,875\qquad\text{add 1,600 to both sides}\\\\-64x=44,475\qquad\text{divide both sides by (-64)}\\\\x=-\dfrac{44,475}{64}$

8 0

2 years ago

A bus stops at a bus stop every 45 minutes. Once a person gets to the bus stio, what is the probability they will wait for no mo

sesenic [268]

Answer:

≈ $44.4%$ $%$ %

Step-by-step explanation:

The person will wait for no more than 20 minutes if they arrive when the bus is going to stop in 20 minutes, which means that they must arrive 25 minutes after the previous bus stops. So the probability that the person will not wait for more than 20 minutes will be $\frac{20}{45}$ which is about 44.4%.