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Digiron [165]
3 years ago
13

3-4x=-60+3x I need help its to hard and ive been trying for 20 mins to find the answer

Mathematics
2 answers:
GaryK [48]3 years ago
7 0

Answer:

x=63

Step-by-step explanation:

MissTica3 years ago
4 0

Answer:

x = 9

Step-by-step explanation:

Given

3 - 4x = - 60 + 3x ( subtract 3x from both sides )

3 - 7x = - 60 ( subtract 3 from both sides )

- 7x = - 63 ( divide both sides by - 7 )

x = 9

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I am really confused about this question for math.. any help would be really appreciated:
Elina [12.6K]

y= (\frac 1 4 )^x

A reflection about the x axis, about y=0, is the mapping (x',y')=(x,-y) so

y'= -y = - (\frac 1 4)^{x'}

A dilation of 2 is the mapping (x'',y'')=(2x', 2y')

So

x'=x''/2, y'=y''/2

y''/2= - (\frac 1 4)^{x''/2}

y'' =  - 2((\frac 1 4)^{1/2})^{x''}

y''= - 2(\frac 1 2)^{x''}

We can rewrite that without the primes and combine the powers of 2.

y =  - 2^{1-x}

Let's graph these and see if we're close,

Plot y= (1/4)^x, y= - (1/4)^{x}, y = - 2^{1-x}

6 0
3 years ago
A student answered 86 problems on a test correctly and received a grade of 98%. How many problems were on the test, if all the p
balu736 [363]

Answer:

88 problems

Step-by-step explanation:

Set this problem up as fractions

86/x = 98/100

Cross multiply

86 × 100 = x × 98

8600 = 98x

Divide both sides by 98

87.75... = x

Round to nearest whole number

87.75 rounds up to 88

88 problems

7 0
3 years ago
Can somebody help me with this math problem?
Travka [436]

Answer:

integer and rational

Step-by-step explanation:

hfjbawenjrcuwit3wrjm3iowrmkfw3klarmfwesdjkncfkelrnmfKWCNRQJWKSRNCJKWrnq

4 0
3 years ago
What is the gcf for 84 and 54
solmaris [256]
Your answer for the greatest common factor is 6
3 0
3 years ago
I WILL GIVE BRAINLIEST! PLEASE ANSWER ASAP THANKS!
timama [110]

Answer:

80

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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