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3 years ago

8

Kevin and Randy Muise have a jar containing 36 coins, all of which are either quarters or nickels. The total value of the coins

in the jar is $4.80. How many of each type of coin do they have?

1 answer:

borishaifa [10]3 years ago

6 0

Answer:

Step-by-step explanation:

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I really need help with this question! Please help me!!!

Dafna11 [192]

Answer:

42°

Step-by-step explanation:

AD bisects ∠CAB, which means it splits ∠CAB into two equal parts. ∠CAB equals 84°. 84° ÷ 2 = 42°.

7 0

3 years ago

Let A be the area of a circle with radius r. If dr/dt=3, find dA/dt when r=2.

astraxan [27]

$\bf \textit{area of a circle}=A=\pi r^2
\\\\\\
\cfrac{dA}{dt}=\pi \cdot 2r^1\cdot \cfrac{dr}{dt}\implies \cfrac{dA}{dt}=\pi \cdot 2r\cdot \cfrac{dr}{dt}\quad 
\begin{cases}
r=2\\
\frac{dr}{dt}=3
\end{cases}
\\\\\\
\cfrac{dA}{dt}=\pi \cdot 2(2)(3)$

3 0

3 years ago

Read 2 more answers

PLEASE HELP ME OUT <br> EASY POINTS HERE :)

liubo4ka [24]

Answer: A

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If anyone can, please help me. I have to determine the value of x.

zzz [600]

Answer:

60 I think

Step-by-step explanation:

draw a straight line to make it a triangle then you know that angles in a triangle add up to 180.

so,

180-140=40

180-100=80

40+80=120

180-120=60

x=60

I think it's 60

6 0

3 years ago

Halla ei valor de x en cada exprecion<br>mai

In-s [12.5K]

Answer:

<h2>Your answer...!!</h2>

Hope it helps

8 0

2 years ago