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Reil [10]
3 years ago
7

Which equation shows the result of substituting and expression for y from the first equation into the second equation for the gi

ven system {y=x+5 {y-2x=2
Mathematics
2 answers:
krek1111 [17]3 years ago
7 0

Answer:

x-2x = -3 and x = 3

Step-by-step explanation:

Given the expression

y=x+5.... 1

y-2x=2.... 2

Substituting the first equation into the second we will have;

From 2;

y -2x = 2

x+5-2x = 2

x-2x +5 = 2

x-2x = 2-5

x-2x = -3

-x =-3

x =3

Hence the required equation is x-2x = -3 and x = 3

fgiga [73]3 years ago
3 0

Answer:

(x + 5) – 2x = 2

Step-by-step explanation:

Edge 2021

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Is anyone good at word problems?
Georgia [21]

Answer:

X + P = 34

330X + 250P = 9620

Step-by-step explanation:

The question tells us that there were 34 consoles sold. Therefore, we can draw the straight forward conclusion that whatever combination of consoles were sold, the number Xboxes (X) and PS4s (P) sold together has to be 34 in total. Thus:

X + P = 34

Now, we know the each Xbox sold for $330, and each PS4 sold for $250, and the total sales from the consoles bought was $9620. Thus:

$330X + $250P = $9620

Hope this helps!

4 0
3 years ago
Is y varies directly as x, and y is 18 when x is 5 witch expression can be used to find the value of y when x is 11?
Svet_ta [14]
As the variation is direct we have:
 y = k * x

 Where,
 k: proportionality constant
 We must find the value of k.
 For this we use the following data:
 y is 18 when x is 5.
 Substituting values we have:
 18 = k * 5

 From here, let's clear k:
 k = 18/5

k = 3.6

 Then, replacing values we have:
 y = 3.6 * x

 For x = 11 we have:
 y = 3.6 * 11

y = 39.6
 Answer:
 
An expression that can be used to find the value of y when x is 11 is:
 
y = 3.6 * x

 When x = 11 we have:
 
y = 39.6
3 0
4 years ago
Find the volume of a cone with a diameter of 12 cm and a height of 7 m
Stells [14]

Answer:

263.76 m^3

Step-by-step explanation:

Using 3.14 as pi

pi * radius^2 * height / 3

3.14 * 6^2 * 7 / 3

3.14 * 36 * 7 /3

3.14 * 252 /3

3.14 * 84

263.76

5 0
2 years ago
What is the ratio for 44 students and 6 adults?
zysi [14]
It would be: 44/6 = 22/3

In short, Your Answer would be 22 : 3

Hope this helps!
5 0
3 years ago
I will give brainliest
OlgaM077 [116]

Answer: 16 quarts of blue paint

Step-by-step explanation:

i divided 3 by 24 to see how many quarts there was then took the answer which is 8 and multiplied it by 2.... i dont know if its right but i tried

4 0
3 years ago
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