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AVprozaik [17]
3 years ago
7

What is y = 5 - 2x 3x - 2y = 4

Mathematics
1 answer:
timofeeve [1]3 years ago
5 0

Answer:

x = 2

y = 1

Step-by-step explanation:

y = 5 - 2x (1)

3x - 2y = 4 (2)

From (1), substitute in (2)

3x - 2(5 - 2x) = 4

3x - 10 + 4x = 4

Collecting like terms

3x + 4x = 4 + 10

7x = 14

x = 2

Since x = 2

Therefore

y = 5 - 2x

y = 5 - 2(2)

y = 5 - 4

y = 1

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What percent is equivalent to 24/50 24% 48% 50% 52%​
gizmo_the_mogwai [7]

Answer:

48%

Step-by-step explanation:

(24/50)2

= 48/100

= 48%

4 0
3 years ago
A club raises $3,207 to buy stuffed animals for a local children's hospital. Each stuffed animal costs $17. What is the maximum
Ksju [112]

Answering:

188

Explaining:

To solve this problem, we must divide the total amount of money raised by the cost of the stuffed animals. Each stuffed animal costs $17. The club raised $3,207 to buy said stuffed animals. By dividing the money earned, which is also the money the club is able to spend, by the cost of a single/one stuffed animal, we will get how many stuffed animals the club can purchase with the money they currently possess. Our equation will look like this: 3,207 ÷ 17.

After dividing 3,207 by 17, we have the number 188.64705882. This can be rounded to the nearest tenth to create the simpler yet still accurate number 188.6.

Our final step is to round 188.6 down to the whole number it already has. (That is to say, simply cut off the fraction and remove it to get our answer.) This step must be done because we are buying stuffed animals in a real-world situation. The club would not be able to purchase part of a stuffed animal for a fraction of the cost, and the cost of the stuffed animals in the problem is a fixed value. This means that the fraction is irrelevant since we cannot purchase anything with it, effectively making it totally irrelevant to the answer. After removing the fraction from 188.6, we are left with 188.

Therefore, the maximum number of stuffed animals the club can buy is <em>188 stuffed animals</em>.

4 0
3 years ago
The function f(x) = -5x2 + 13x + 6 represents the height, in meters, of a
AnnZ [28]

Answer:

D

Step-by-step explanation:

Differentiate the function and set it to zero:

f'(x) = -10x + 13

0 = -10x + 13

x = 1.3 seconds

Plug the x value into f(x):

f(1.3) = -5(1.3)^2 + 13(1.3) + 6 = 14.45 meters

8 0
3 years ago
In a survey of students , every student studies at least one of the three subjects Maths English and Science . The number of stu
Mandarinka [93]

Answer:

80x2=160         20x3=60  160+60=220

Step-by-step explanation:

5 0
3 years ago
If y=x+1 on a straight line graph where does it meet
mojhsa [17]
I assume you're asking where it meets the y axis
In an equation the last number is the y intercept so I'm this case it would be 1
8 0
3 years ago
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