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Finger [1]
4 years ago
5

Which constants can be multiplied by the equations so one variable will be eliminated when the systems are added together?

Mathematics
1 answer:
nordsb [41]4 years ago
4 0
The first to solve x, because it eliminates y. Third one to solve y, because it eliminates x.
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What percent is the change in the price if: a The price was $100 and now it is $1250?
KatRina [158]

Answer:

The increase is 1150.

11.5 times the original value, or 1150% of it. That's a big increase, and I would not buy that thing, whatever it is.

8 0
4 years ago
Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda.
valina [46]
Part A.

Consider a punch containing L liters.

60% of these that is \frac{60}{100}L=0.6L is grape juice, and the rest, 0.4 L is lemon-soda.

so, for the variable L, the total amount of punch, the total amount of grape juice is 0.6 L
and the amount of lemon soda in the punch is 0.4L
 
Part B.

For L=2, we substitute and get:

0.6 L=0.6 * 2 liters = 1.2 liters of grape juice

0.4 L = 0.4 * 2 liters = 0.8 liters of lemon soda.

5 0
4 years ago
What is the value of K
Elan Coil [88]

Answer:

k = 10

Step-by-step explanation:

We first have to get the 3rd angle: 180 - 115 = 65

Sum of angles in a triangle = 180

65 + (4k + 5) + (6k + 10) = 180

Collect like terms

65 + 10k + 15 = 180

80 + 10k = 180

Subtract 80 from both sides

10k = 100

Divide both sides by 10

k = 10

8 0
3 years ago
amy is going to put 6 triangular tables together to make one large hexagon shaped table what will be the area of the hexagon bel
SSSSS [86.1K]

Answer: 54 feet

Step-by-step explanation: if the area of each triangle is 3 feet by 3 feet then the area of one triangle is 9 feet. If you need six then all you have to do is multiply 9 by 6 and that gives you 54 feet.

4 0
4 years ago
Plzzzzz help will Mark BRAINLYLIST!!!!!
Serga [27]

Answer:

104 units

Step-by-step explanation:

One key thing to note about a reflection is that side lengths and angle measures will always remain the same on the reflected figure. With that in mind, let's note the side lengths in both the original and reflected figures.

AB=\\BC=20\\CD=30\\AD=

A'B'=22\\B'C'=\\C'D'=\\A'D'=32

Remember, since side lengths are the same, let's fill in the missing values with the values of the side lengths given in each of the figures:

AB=22\\BC=20\\CD=30\\AD=32

A'B'=22\\B'C'=20\\C'D'=30\\A'D'=32

See? Notice how the values are the same! To find the perimeter (P) of a quadrilateral, we have to add each side length:

P=22+20+30+32

Solve:

P=104

6 0
3 years ago
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