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3 years ago

Please help!!! A. 21890/990 B.21539/9990 C.215605/1010 D. 215605/1000

Mathematics

1 answer:

ollegr [7]3 years ago

5 0

Answer:

The answer I got was D 215605/1000

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The furniture store where Jada's sister works bought a table for $200 and sold it for $350. What percentage was the markup? I wa

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Step-by-step explanation:

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3 years ago

Mary throws her Grandma’s favorite crystal dish out the second floor window, which is 6 meters from the ground. She is really up

wlad13 [49]

we know that

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so, we get

$a(t)=9.8$

and acceleration will always be constant

we know that

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$\int \:a\left(t\right)dt=\int \:9.8dt$

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we know that

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$\int \:v\left(t\right)dt=\int \:\left(9.8t+35\right)dt$

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$s(t)=4.9t^2+35t+C$

now, we have

s(0)=6

we can use it and find C

$s(0)=4.9(0)^2+35(0)+C$

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and we get

$s(t)=4.9t^2+35t+6$ .............Answer

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3 years ago

Read 2 more answers

The difference of two numbers is 16 the greater number is five less than four times a small number find the two numbers

Elis [28]

Answer:

The numbers are 23 and 7

Step-by-step explanation:

1. Set up the equations

Let x = the greater number

and y = the smaller number. Then

(1) x - y = 16

4y = 4 times the smaller number and

4y - 5 = 5 less than 4 times the smaller number. Then

(2) x = 4y - 5

You have a system of two equations:

$\begin{cases}(1) & x - y = 16\\(2) & x = 4y - 5\end{cases}$

2. Solve the equations

$\begin{array}{lrcll}(3) & 4y - 5 - y & = & 16 &\text{Substituted (2) into (1)}\\& 3y - 5 & = & 16 &\text{Simplified}\\ & 3y & = & 21 &\text{Added 5 to each side}\\(4) &y & = & \mathbf{7} &\text{Divided each side by 3} \\& x - 7 & = & 16 & \text{Substituted (4) into (1)}\\& x& = & \mathbf{23} & \text{Added 7 to each side}\\\end{array}$