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wolverine [178]
3 years ago
8

Simplify and then evaluate the equation when x= 3. -5(x – 5) + 2x = [?]

Mathematics
2 answers:
saveliy_v [14]3 years ago
4 0

Answer:

16

Step-by-step explanation:

-5(3 - 5) + 2(3) =

-5(-2) + 2(3)

10 + 6 =

16

nadya68 [22]3 years ago
3 0

Answer:

-3x+25

16

Step-by-step explanation:

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Please dont answer with anything bad :((( extremely need help
svetoff [14.1K]

Answer:

120°

Step-by-step explanation:

A line must add up to 180°.

The sum of angles in a triangle also adds up to 180°.

Step 1: Find measures interior angles.

3x = 180

x = 60°

Step 2: Find measures of exterior angels.

x + 60 = 180

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5 0
3 years ago
Read 2 more answers
Molly was on a long 136 mile road trip. The first part of the trip there was lots of traffic, she only averaged 16 mph. The seco
Mazyrski [523]

Answer:

In traffic, she drove for 3 hours

and After the traffic cleared she drove for 2 hours.

Explanation:

Given that the road trip was 136 miles;

d=136

The first part of the trip there was lots of traffic, she only averaged 16 mph;

v_1=16

The second part of the trip there was no traffic so she could drive 44 mph;

v_2=44

She traveled for a total of 5 hours;

t=5

let x represent the time in traffic when she traveled at 16 mph

t_1=x

the time the traffic is clear would be;

t_2=t-t_1=5-x

Recall that distance equals speed multiply by time;

d=v_1t_1_{}_{}^{}+v_2t_2

substituting the values;

136=16x+44(5-x)

solving for x;

\begin{gathered} 136=16x+220-44x \\ 44x-16x=220-136 \\ 28x=84 \\ x=\frac{84}{28} \\ x=3 \end{gathered}

So;

\begin{gathered} t_1=3\text{ hours} \\ t_2=5-x=5-3=2 \\ t_2=2\text{ hours} \end{gathered}

Therefore, In traffic, she drove for 3 hours

and After the traffic cleared she drove for 2 hours.

7 0
1 year ago
Cynthia conducted an experiment with a spinner that contained only 4 sectors:f,g,h,and j. She spun the arrow 40 times and record
nadezda [96]
The probability is C) 3/8.

The spinner landed on H 15 times out of (12+9+15+4) = 40 times.  This is a probability of 15/40, which simplifies to 3/8.
3 0
3 years ago
Which conclusion is supported by the data from the multiple-year samples? Check all that apply
dedylja [7]

Answer:

B and C

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Área Is 18 1/3ft . height Is 3 1/3. what Is the base ?
xeze [42]
3 1/3 x 5 2/4 = 18 1/3 so 5 2/4 is your answer
5 0
3 years ago
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