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sashaice [31]
3 years ago
9

Maria says if I multiply the current temperature by 4 and then subtract 40 the results is the same as 3 times the current temper

ature Richard says the current temperature is 20 degrees is Richard correct
Mathematics
1 answer:
astra-53 [7]3 years ago
4 0

Answer:

No, Richard is incorrect, the current temperature is 40 degrees.

Step-by-step explanation:

4x-40=3x

4x-3x=40

x=40

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I need help with this problem<br><br> 2y=x-4 4x+3y=5
attashe74 [19]

Answer:

Point form : (2,-1)

Equation form : x=2,y=-1

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Hope this helps you out! ☺

-Leif Jonsi-

6 0
3 years ago
4) Suppose y varies inversely with the SQUARE ROOT of x.
Savatey [412]

Answer:

Variation equation: y = k/√x

constant of variation: 200

Variation Equation by plugging the value of k: y = 200/√x

Step-by-step explanation:

If y varies inversely with the SQUARE ROOT of x, then;

y = k/√x

If  x = 4, y = 100.

100 = k/√4

100 = k/2

200 = k

k = 200

Substitute into the expression

y = k/√x

y = 200/√x

7 0
3 years ago
Which equation involves a prime quadratic and cannot be solved by factoring? A. x2 + 5x − 4 = 0 B. x2 − x − 6 = 0 C. x2 + 3x − 4
Damm [24]

Answer:

Option A

Step-by-step explanation:

We can try to factorize all the options one by one.

For A:

x^{2} +5x-4\\=> x^{2}+4x+x-4\\=>x(x+4)+1(x-4)

We can see that the quadratic expression cannot be solved by factorization as the factors at the end of factorization are not equal in both brackets. So Option A is the correct answer for the given question.

Moreover we can also note that all the other quadratic expressions can be factorized ..

8 0
3 years ago
Hich is the joint relative frequency for the people who can only see the sunset?
UNO [17]

Answer:

12/38

Step-by-step explanation:

7 0
2 years ago
Please help, I need to make and equation and solve it!
Stells [14]
0.15c>10+0.10c
0.05c>10
c>200
6 0
3 years ago
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