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Lena [83]
3 years ago
6

Solve the system by substitution. Y = 2x y = 5x - 30

Mathematics
1 answer:
uysha [10]3 years ago
8 0

Answer:

x= 10; y=20

Step-by-step explanation:

2x=5x-30

30=3x

30/3=x

x=10

y=2(10)

y=20

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Wittaler [7]

Answer:

Area = 45 km

Step-by-step explanation:

The area of a parallelogram = base * height

It is given that:

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Height = 9 km

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Area = 6 * 9

Area = 45 km

Hope this helps :)

3 0
3 years ago
Estaban is making turtle brownies. The recipe calls for 3/4 bags of carmel squares . One bag has 24 caramel squares in it. Estab
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3 years ago
³√125×2³ is? please help no idea​
atroni [7]
The answer is 40

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5 0
3 years ago
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Raul bought a soft drink and a sandwich for $9.90. What is the price of each if the sandwich cost 3.5 times as much as the soft
lidiya [134]

Hello!

Before creating equations and solving for the values of the soft drink and sandwich, we need to assign variables. We can assign x to the soft drink and sandwich.

Since the sandwich costs 3.5 times as much as the soda, it is written as 3.5x and the soda is just x. Also, the total cost is 9.90 dollars.

3.5x + x = 9.90 (simplify)

4.5x + 9.90 (divide both sides by 4.5)

x = 2.2 | That is the cost of the soda.

To find the cost of the sandwich, we subtract 2.20 from the total cost.

9.90 - 2.20 = 7.70 | That's the cost of the sandwich.

Therefore, the final answer is B, the sandwich costs $7.70 and the soda costs $2.20.

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3 years ago
How many congruent sides does an equilateral triangle have?
RideAnS [48]

Answer:

3 congruent sides

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