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Anettt [7]
3 years ago
5

Solve 9-(4x-1) = -4x+8

Mathematics
2 answers:
NNADVOKAT [17]3 years ago
6 0
The answer is negative two (-2)
elena-14-01-66 [18.8K]3 years ago
4 0

Answer:

Can't solve for x because the left side of the equation doesn't equal the right side

Step-by-step explanation:

9-(4x-1)=-4x+8

Expand the bracket - - > 9-4x+1=-4x+8

Simplify - - > 10-4x=-4x+8

2=-4x+4x

2=0

2 not= 0

Can't solve for x because the left side of the equation doesn't equal the right side

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Show that 1 2/3 + 2 3/4 = 4 5/12
lozanna [386]
2/3x4 =8/12
3/4x3 =9/12

8/12+9/12=17/12
17/12=1 5/12

1+2+1 5/12 = 4 5/12
5 0
3 years ago
The table below represents the displacement of a turtle from its nest as a function of time: Time (hours) x Displacement from ne
andriy [413]
Part A: The y-intercept is 5. If you look to the data, when x=0, y=5. This means that the turtle started off 5 miles away from its nest. (at 0 hours, the distance away from his nest was 5 miles)

Part B:Answer=22. Remember, if you take any two distinct points on a line, the slope of the line will be equal to the average rate of change. In short,  we're just looking for the slope between the ordered pairs (1,27) and (4,93). The formula for slope is:

slope= \frac{y_{2}- y_{1} }{ x_{2} - x_{1} } = \frac{93-27}{4-1}= \frac{66}{3}=22

The average rate of change between x=1 and x=4 is 22. The average rate of changed describes the rate at which miles is changing with respect the the change in hour.

Part C: Answer=10hours. Since by now we know both the slope and the y-intercept, lets write the equation in slope intercept form and then solve for 225 miles.

y=mx+b
y=22x+5
225=22x+5
subtract 5 from both sides
220=22x
divide both sides by 22
10=x
It would take 10 hours for the turtle to travel 225miles from it's nest.
4 0
4 years ago
The measures of the angles of ∆ DEF are in the ratio 2:4:4. what are the measures of the angles?​
REY [17]

Answer:

look at this image fpr answer .it is right

7 0
3 years ago
What is the solution of x2+x-6/x-7_<0
Katarina [22]

Answer:

x < -3 or 2 < x < 7

Step-by-step explanation:

5 0
3 years ago
Doreen Schmidt is a chemist. She needs to prepare 32 ounces of a 13​% hydrochloric acid solution. Find the amount of 16​% soluti
klasskru [66]

Answer:

She should mix <u>20 ounces</u> of 16% solution and <u>12 ounces</u> of 8% solution.

Step-by-step explanation:

Given:

Doreen Schmidt needs to prepare 32 ounces of a 13​% hydrochloric acid solution.

Now, to find the amount she should mix of 16% solution and of 8% solution.

Let the 16% solution amount be x.

And let the 8% solution amount be y.

<em>So, the total ounces of solution:</em>

x+y=32

y=32-x .......(1)

Now, to solve the equation to get the solution she should mix:

16\%\ of\ (x)+8\%\ of\ (y)=13\%\ of\ (32)\\\\\frac{16}{100}\times x+\frac{8}{100}\times y=\frac{13}{100}\times 32

0.16x+0.08y=0.13\times 32

Substituting the value of y from equation (1) we get:

0.16x+0.08(32-x)=4.16

0.16x+2.56-0.08x=4.16

2.56+0.08x=4.16

Subtracting both sides by 2.56 we get:

0.08x=1.6

Dividing both sides by 0.08 we get:

x=20.

<em>The 16% solution amount = 20 ounces.</em>

Now, substituting the value of x in equation (1) we get:

y=32-x\\\\y=32-20\\\\y=12.

<em>The 8% solution amount = 12 ounces.</em>

Therefore, she should mix 20 ounces of 16% solution and 12 ounces of 8% solution.

6 0
4 years ago
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