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jeyben [28]
3 years ago
13

If 10x+2=7 what us 2x

Mathematics
1 answer:
Yakvenalex [24]3 years ago
6 0
2x=1

10x+2=7
subtract 2 from both sides
10x=5
divide 10 on both sides
x=1/2, 0.5, or 5/10

Use 1/2 to solve '2x'
2*(1/2)=1
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How to answer h/4 ≤ 2/7
Serjik [45]

I feel you, headaches suck.

Your answer would be  h ≤ 8/7

Step  1  :

           2

Simplify   —

           7

Equation at the end of step  1  :

 h    2

 — -  —  ≤ 0

 4    7

Step  2  :

           h

Simplify   —

           4

Equation at the end of step  2  :

 h    2

 — -  —  ≤ 0

 4    7

Step  3  :

Calculating the Least Common Multiple :

3.1    Find the Least Common Multiple

     The left denominator is :       4

     The right denominator is :       7

After calculating the multipliers you get  h ≤ 8/7

Hope this helps!

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4 0
3 years ago
My number rounded to the nearest tenth is 3.6. What might my number be? Justify your answer.
DENIUS [597]

Answer: 3.57

Step-by-step explanation: When you round the number 3.57 to the nearest tenth, you get 3.6.

5 0
3 years ago
How would you solve (4k+5)(k+1)=0?
alukav5142 [94]
(4k+5)(k+1)=0\iff4k+5=0\ or\ k+1=0\\\\4k=-5\ or\ k=-1\\\\\boxed{k=-\frac{5}{4}\ or\ k=-1}
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Shalnov [3]
The answer on the picture is right
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A school district is considering moving the start of the school day at Groveland High from 8:00 a.m. to 9:00 a.m. to allow stude
DaniilM [7]

Answer:

The answer is "\bold{(7.1-8.3) \pm 1.665 \sqrt{\frac{(1.7)^2}{50}+\frac{(1.9)^2}{39}} }\\\\"

Step-by-step explanation:

Given values:

\bar{x_1}=7.1\\\\\bar{x_2}=8.3\\\\s_1=1.7\\\\s_2=1.9\\\\n_1=50\\\\n_2=39

Using formula:

\to (\bar{x_1} -\bar{x_2}) \pm t \sqrt{\frac{(s_1)^2}{n_1}+\frac{(s_1)^2}{n_2}} \\\\

Put the values in the above formula:

\to (7.1-8.3) \pm 1.665 \sqrt{\frac{(1.7)^2}{50}+\frac{(1.9)^2}{39}} \\\\

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