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Sergeeva-Olga [200]
3 years ago
6

The graph below shows the hours students spent studying and their language arts test scores.

Mathematics
2 answers:
Alexandra [31]3 years ago
5 0

Answer:

correct answer is 40

Step-by-step explanation:

hope it helps:D

ziro4ka [17]3 years ago
3 0

Answer:

cccc

Step-by-step explanation:

it is correct on edge

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(07.08 LC)
Brut [27]

Answer:

5y

Step-by-step explanation:

10

3 0
2 years ago
We looking for distance
drek231 [11]

Answer:

240 m

Step-by-step explanation:

Figure is attached.

The distance the particle travels is the area under the v-t graph over the time interval from 0 min to 4 min.  The reason you can't just multiply velocity by time is that the velocity is changing at a constant rate over the given time interval (the line is going upward--the particls is speeding up).

What's the area under the graph?

The red outline forms a trapezoid.  The area of a trapezoid is  A=\frac{1}{2}h(b_1+b_2)  where the <em>b</em>'s are the lengths of the two parallel base and  <em>h</em>  is the height (the distance between the bases).

Reading the graph carefully (notice the scales!)...

A=\frac{1}{2}(4)(30+90)=(2)(120)=240 \text{m}

8 0
2 years ago
Can someone pls help me solve this question!!!!!!!
KiRa [710]

Total of 90 fish:

c + p = 90

Charlie gave 1/4 c to Peter.  Now

Charlie has c - (1/4) c

Peter has p + (1/4) c

Peter gave 2/5 of his to Charlie. Now

Peter has p + (1/4) c - 2/5( p + (1/4) c )

Charlie has c - (1/4) c + 2/5( p + (1/4) c )

And then they had equal number:

c - (1/4) c + 2/5( p + (1/4) c ) = p + (1/4) c - 2/5( p + (1/4) c )

Let's do the easy subtractions then multiply by 20 to clear the fractions,

(3/4) c + 2/5( p + (1/4) c ) = 3/5( p + (1/4) c )

15c + 8p + 2c = 12p + 3c

14c = 4p

7c = 2p

c + p = 90

2c + 2p = 180

2c + 7c = 180

9c = 180

c = 20

p = 70

Answer: Charlie started with 20, Peter with 70

Check:

Initially C:20, P:70

1/4(20)=5 to P

C:15, P:75

(2/5) 75 = 30 to C

C:45, P45

Good


3 0
3 years ago
Which expression represents five more than one-third y?
MaRussiya [10]

Answer:

1/3 y  +5

Step-by-step explanation:

five more than one-third y

1/3 y  +5

5 0
2 years ago
Read 2 more answers
Resolve into factors. p4+7p2q2+16q4​
uranmaximum [27]

Step-by-step explanation:

p⁴+8p²q²+16q⁴

(p²)²+2×p²×4q²+(4q²)²

We know that,

  • (a+b)²=a²+2ab+b²

Therefore,

  • (p²)²+2×p²×4q²+(4q²)²
  • (p²+4q²)²
  • (p²+4q²)(p²+4q²)
7 0
2 years ago
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