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AleksandrR [38]

2 years ago

9

Justin earned $50 mowing yards and $19 washing cars. He wants to divide his money into 3 equal accounts.How much will he put in

each account? Complete the explanation.

1 answer:

ivanzaharov [21]2 years ago

8 0

Answer:

$23

Step-by-step explanation:

$50 + 19=69\\69/3=23\\Or -$23 in each account$

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Tasha has eight more fish than Oscar, who has twice as many fish as Cecilia. If altogether they have 148 fish, how many fish do

Viefleur [7K]

Answer:

They each have 64

Step-by-step explanation:

let C = number of fish that Cecilia has --- then, O = 2C, where O = number of fish that Oscar has --- and T = O + 8 = 2C + 8, where T = number of fish that Tasha has --- then, C + O + T = C + 2C + (2C + 8) = 148 --- or, 5C + 8 = 148 --- or, 5C = 140 --- or, C = 140/5 = 28 --- and, O = 2C = 2(28) = 56 --- and, T = O + 8 = 56 + 8 = 64

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cboxed%7B%5Ctext%7BSolve%20for%20%27x%27.%7D%7D%5C%5C%5C%5C%5Cfrac%7Bx%2B3%7D%7B6%7D%3D%5Cfr

evablogger [386]

Hi there!

»»————-　★　————-««

I believe your answer is:

$x = 1$

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

$\boxed{\text{Calculating the answer...}}\\\\\frac{x+3}{6}=\frac{2}{3}\\\----------\\\rightarrow (\frac{x+3}{6})6=(\frac{2}{3})6\\\\\rightarrow x + 3 = 4\\\\\rightarrow x + 3 - 3 = 4 - 3\\\\\rightarrow \boxed{x=1}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

7 0

3 years ago

Read 2 more answers

Guess the rule and add the next number in the sequence.<br> 1, 5, 13, 25, 41, ?

WINSTONCH [101]

Suspect: we start adding 4, later 8, 12, 16...

Therefore, the next number is 41 + 20 = 61.

Now, we try to guess the rule.

Note that, the numbers that we add are multiples of 4. Try to write the sequence in a different way like this:

1, 1 +4, (1+4) +8, ((1+4)+8)+12, (((1+4)+8)+12) +16, ...

1, 1+4, 1 + 4(1+2), 1 + 4(1+2+3), 1+ 4(1+2+3+4)...

You must to know that 1+2+3+...+ n = n(n+1)/2

Then, the nth numbers of the sequence must to be 1 + 4n(n+1)/2 = 1+2n(n+1) = a_n

Check the formula:

n = 0 then a_0 = 1+ 0

n=1 then a_1 = 1 +2(2) = 5

n=2 then a_2 = 1 +2(2)(3) = 13

n=3 then a_3 = 1 +2(3)(4) = 25

n=4 then a_4 = 1 +2(4)(5) = 41

n=5 then a_5 = 1 +2(5)(6) = 61

....

5 0

3 years ago

In the accompanying diagram, the legs of right triangle ABC are 5 and 12 and the hypotenuse is 13. What is the value of cos A? A

disa [49]

$\cos A=\frac{5}{13}$

answer: C

7 0

2 years ago

Which is a possible number of real roots for a cubic function? Select all that apply.

poizon [28]

A cubic equation has degree 3. That means that the highest exponent of x (or whatever variable is being used) is 3. This means the function can have 0, 1, 2 or 3 roots.

Whatever the highest exponent of the variable is tells us the highest number of roots it can have. It can have that many or fewer but no less than 0.

3 0

3 years ago

Read 2 more answers