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lyudmila [28]
3 years ago
8

−21x + 121; x= 5 Help Me!!

Mathematics
2 answers:
MrRa [10]3 years ago
8 0
16, hopefully this helps you>33 b
NeTakaya3 years ago
3 0

Answer:

16

Step-by-step explanation:

-21x+121

x=5

substitute x

-21(5)+121=-105+121=16

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Answer:

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8 0
3 years ago
How many solutions does this system have? y = 3 x minus 5. y = negative x + 4. one two an infinite number no solution
AveGali [126]

Answer:

One

Step-by-step explanation:

It is given that,

y = 3x-5 ....(1)

y = -x+4 .....(2)

We can solve the above equations using substitution method. Put the value of y from equation (1) to equation (2) such that,

3x-5 = -x+4\\\\3x+x = 5+4\\\\4x = 9\\\\x=\dfrac{9}{4}

Put the value of x in equation (1) we get :

y = 3x-5\\\\y = 3\times \dfrac{9}{4}-5\\\\y=\dfrac{7}{4}

It means that the value of x is \dfrac{9}{4} and the value of y is \dfrac{7}{4}. Hence, the given equations has only one solution.

6 0
3 years ago
Pls help asap!!!! tysm guys!!
Delvig [45]

Answer:

C. 256 in2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is 16,500rounded to the nearest ten thousand
harina [27]
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So the answer would be 20,000
5 0
3 years ago
How do you solve 0.8=6-2.5x
photoshop1234 [79]
X=2.08

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6 0
3 years ago
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