1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ozzi
3 years ago
15

URGENT!! WILL GIVE BRAINLIEST

Mathematics
1 answer:
Paha777 [63]3 years ago
8 0

Answer:

She made an error when using the zero pair.

Step-by-step explanation:

In step 2, Carianne added 4 to the right side and subtracted 4 on the left side, which is completely changing the equation. By definition, your zero pair must have a difference of zero. She need to add 4 to both sides to continue; when manipulating algebra you need to do the same thing to both sides of an equation, otherwise you're just changing the equation.

You might be interested in
Do you have to line up the decimals when multiplying
Readme [11.4K]
No, you do not have to line up the decimals.
5 0
2 years ago
A team of cancer research specialists received a grant of $500,000 to be used for cancer research. They deposited some of the mo
Llana [10]

Answer:

  • $450,000 at 10%
  • $50,000 at 9%

Step-by-step explanation:

Let x represent the amount invested at 10%. Then the total interest earned per year is ...

  0.10x + 0.09(500,000-x) = 49,500

  0.01x = 49500 -45000

  x = 4500/0.01 = 450,000

$450,000 was deposited in the 10% account; $50,000 was deposited in the 9% account.

5 0
3 years ago
SOMEONE ANSWER QUICK!!
Thepotemich [5.8K]

Answer:

3/4 pizza is left. If you want an explanation, ask me ;>

8 0
2 years ago
Read 2 more answers
Solve this: k/3 = -4​
Veseljchak [2.6K]

Step-by-step explanation:

  • k/3= -4
  • k= -4×3
  • k= -12

<h2>stay safe healthy and happy.</h2>
6 0
2 years ago
Read 2 more answers
What is the area of the parllelogtam shown below
Umnica [9.8K]
<h3>Answer: 16 square units</h3>

Let x be the height of the parallelogram. Right now it's unknown, but we can solve for it using the pythagorean theorem. Focus on the right triangle. It has legs a = 3 and b = x, with hypotenuse c = 5

a^2 + b^2 = c^2

3^2 + x^2 = 5^2

9 + x^2 = 25

x^2 = 25-9

x^2 = 16

x = sqrt(16)

x = 4

This is a 3-4-5 right triangle.

The height of the parallelogram is 4 units.

We have enough info to find the area of the parallelogram

Area of parallelogram = base*height

Area of parallelogram = 4*4

Area of parallelogram = 16 square units

Coincidentally, the base and height are the same, which isn't always going to be the case. The base is visually shown as the '4' in the diagram. The height is the dashed line, which also happens to be 4 units long.

6 0
3 years ago
Other questions:
  • Which quadrents do the six inverse trig functions?
    11·1 answer
  • How long does it take a golf ball to fall from rest to a distance of 10m. What would its speed be when it fell by 10m?
    14·1 answer
  • What is the surface area of the prism? A. 180 in2 B. 204 in2 C. 120 in2 D. 192 in2
    5·1 answer
  • The local drugstore is offering 15% off the normal price for a 16-pack of AAA batteries. If a 16-pack of AAA batteries is normal
    9·2 answers
  • If a truck has a mass 10 times greater than a car, how fast will the car have to move to have the same momentum as the truck whe
    8·2 answers
  • Which graph shows a proportional relationship between the number of hours of renting a snowboard and the total amount spent to r
    15·1 answer
  • See above to see question
    15·2 answers
  • Find the missing side length in the image below​
    11·1 answer
  • Help! It's geometry. :) 35 points.
    11·2 answers
  • Plz help me out !! Am rlly bad at these type of math
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!