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Masja [62]
3 years ago
7

Charlie solved an equation, as shown below:

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0
Part A:  Charlie's answer is incorrect
In step 2 of Charlie's answer he subtracted 5 from each side.  Since 5x is multiplication, he must DIVIDE each side by 5 to get x by itself.  The problem should have worked out like this...

Step 1:  5x = 30
Step 2:  x = 30/5
Step 3:  x = 6

Part B:  There is only 1 solution for this problem.
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(08.06 MC)
Aleks04 [339]
A. 2x+y=25; x+y=20
x represents cheese wafers and y represents chocolate wafers.

B. I will choose elimination since there is y and y. I can multiply one equation by -1 to get y and -y, which cancels out.
2x+y=25
-x-y=-20

Add equations
x=5

Plug x in
5+y=20
y=15

Final answer: 5 cheese wafers, 15 chocolate wafers
3 0
3 years ago
The home for sale is listed at $150,000.00. They have $30,000.00 for a down payment and are qualified for a fixed rate 30-year m
klio [65]

Answer:

Estimate: $900.00

Step-by-step explanation:

This cannot be A, B, or C, as it won't make sense with the increase of 75$ each 4 years, with 30K down payment,

3 0
2 years ago
Read 2 more answers
Does somebody knows how to do this problem?
pshichka [43]

Answer:

Angle Q is 51°

Angle R is 96°

(x=5 and the exterior angle is 84°)

Step-by-step explanation:

Exterior Angle Theorem says that angle that's outside the triangle (extend a side and see the angle between the side extension and the side) IS Equal to the sum of the two angles that are farther away.

17x - 1 = 33 + 10x + 1

Get all the x's on one side of the equation.

17x-10x - 1 = 33 + 10x-10x+1

7x - 1 = 33 + 1

7x - 1 = 34 add 1 to both sides

7x = 35 divide by 7

7x/7 = 35/7

x = 5

Not finished ! Find Angle Q

10x+1 = 10(5)+1= 51°

Angle PRQ is insidethe triangle. All the angles of a triangle add up to 180°

33° + 51° + R = 180°

84° + R = 180°

R = 96°

6 0
2 years ago
~ !! MULTIPLE CHOICE PLEASE HELP !!~
harina [27]

Answer:

DIE DIE DIE

OVERWATCH

Step-by-step explanation:

3 0
3 years ago
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HELP MEEEEE I WILL GIVE YOU BRAINLYEST
aliya0001 [1]

Answer:

c and e

Step-by-step explanation:

5 0
3 years ago
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