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mamaluj [8]
3 years ago
10

Formulate a system of equations to represent this situation, with f = the amount of money that Frank spent and r = the amount of

money that Rachel spent. Frank and Rachel spent a total of $15.75. If Rachel spends twice as much money as Frank, how much money did they each spend?
A)
B)
C)
D)
Mathematics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

A

Step-by-step explanation:

I just did it

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Last week Rachel power walked 2 miles per day on each of the 7 days. During the
Nady [450]

Answer: 34 miles

Step-by-step explanation:

First multiply the 2 miles she power walked by the 7 days. (14 miles)

Next, multiply the 5 miles by the 4 days. (20)

Add both numbers, 20+14=34 miles

6 0
3 years ago
A line passes through the points (4, 9) and (12, 20). What is the slope of the line?
Mashutka [201]

Answer:

\frac{11}{8}

Step-by-step explanation:

→ State the gradient formula

( y₂ - y₁ ) ÷ ( x₂ - x₁ )

→ Find x₁ , x₂ , y₁ and y₂

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→ Substitute in the values

\frac{20-9}{12-4}

→ Simplify

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4 0
3 years ago
Deon bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $250 less than the desktop. He pai
zysi [14]

Answer:

300

Step-by-step explanation:

Let x = cost of desktop computer; then x - 250 = cost of laptop computer

converting % to decimals, 9% = 0.09 and 6% = 0.06

Then, 0.09x + (x - 250)0.06 = $300

0.09x + 0.06x - 15 = $300

0.15x = $315

x = $2100

then x - 250 = $1850

Proof: $2100•0.09 + 1850•0.06 = $189 + $111 = $300

7 0
3 years ago
3<br> 4<br> 5<br> 5<br> (1,-1)?<br> -17<br> 2t<br> -37<br> -44<br> (x + 4.7 - 5<br> -5<br> What does y-5 represent
tresset_1 [31]

Answer:

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3 years ago
In which quadrant are the x-coordinate and the y-coordinate of a point both negative?quadrant Iquadrant IIquadrant IIIquadrant I
allochka39001 [22]
Quadrant III
the quadrant numbers go in a "C" shape almost with the
first quadrant being: positive x and positive y
second quadrant: negative x positive y
third quadrant: negative x negative y
fourth quadrant: positive x negative y

hopefully that made sense and helped!
5 0
3 years ago
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