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3 years ago

5

HELP ME PLEASE !!!!!!!!

2 answers:

anzhelika [568]3 years ago

8 0

Answer:

the second one is the answer

grin007 [14]3 years ago

3 0

A and b
Can you maybe help me with my questions?

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Gi finds some dimes and quarters in her backpack. There are 5 fewer quarters than dimes. The total value of the coins is $1.20.

just olya [345]

G finds 7 Dimes and 2 Quarters.
Hope this helps!

3 0

3 years ago

Mom pays $84 for 42 TV channels. What is

damaskus [11]

Answer:

2

Step-by-step explanation:

The proportionality constant k is given by y/x

y/x = cost/ channels = 84/42 = 2

The constant is $2/ channel

4 0

3 years ago

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Solve for X.<br><br> 4x2 – 48x +144 = 0

Mnenie [13.5K]

Answer:

6

Step-by-step explanation:

Let's solve your equation step-by-step.

4x2−48x+144=0

Step 1: Factor left side of equation.

4(x−6)(x−6)=0

Step 2: Set factors equal to 0.

x−6=0 or x−6=0

x=6

Answer:

x=6

5 0

3 years ago

What is the length of the missing side? <br> (Will mark brainliest)

kiruha [24]

Answer: 9.7ft

Step-by-step explanation:

6 0

3 years ago

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Solve the system using substitution. Check your solution.<br> 2x - y= 65<br> 5y = x

lyudmila [28]

Answer:

The solutions to the system of equations are:

$x=\frac{325}{9},\:y=\frac{65}{9}$

Step-by-step explanation:

Given the system of the equations

$\begin{bmatrix}2x-y=65\\ 5y=x\end{bmatrix}$

isolate 'x' for 2x-y

$2x-y=65$

Add y to both sides

$2x-y+y=65+y$

$2x=65+y$

Divide both sides by 2

$\frac{2x}{2}=\frac{65}{2}+\frac{y}{2}$

$x=\frac{65+y}{2}$

$\mathrm{Subsititute\:}x=\frac{65+y}{2}$

isolate 'y' for $5y=\frac{65+y}{2}$

$5y=\frac{65+y}{2}$

$10y=65+y$

subtract y from both sides

$10y-y=65+y-y$

$9y=65$

Divide both sides by 9

$\frac{9y}{9}=\frac{65}{9}$

$y=\frac{65}{9}$

$\mathrm{For\:}x=\frac{65+y}{2}$

$\mathrm{Subsititute\:}y=\frac{65}{9}$

$x=\frac{65+\frac{65}{9}}{2}$

$x=\frac{325}{9}$

The solutions to the system of equations are:

$x=\frac{325}{9},\:y=\frac{65}{9}$

3 0

3 years ago