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Katena32 [7]
3 years ago
11

Y =3x+2 is the equation of a straight line graph.where does it cross the y-axis

Mathematics
1 answer:
neonofarm [45]3 years ago
7 0
Cross the y-axis in x=0
therfore:
if x=0; y=3*0+2=2; ⇒ P(0,2)

solution: P(0,2).
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Three people invest at a ratio of 1:4:7. If the partnership is worth $636,000, what did each person invest?
olga_2 [115]

Answer:

See the detailed answers below

Step-by-step explanation:

Given data

Ratio=  1:4:7

combined ratio= 1+4+7= 12

Total amount= $636,000

Apply the part to all method

The first person will take

1/12= x/ 636,000

cross multiply

12x= 636,000*1

x= 636,000/12

x= 53000

The second person will take

4/12= x/ 636,000

cross multiply

12x= 636,000*4

x= 2544000/12

x= 212000

The third person will take

7/12= x/ 636,000

cross multiply

12x= 636,000*7

x= 4452000/12

x= 371000

6 0
3 years ago
Can someone please explain to me how to do this and help me?​ ASAP too!!​
Olin [163]

So, the time is the Y axis and the speed is the X axis graph the times and the speed and fill in the boxes with the time and speed.

3 0
3 years ago
A group of naturalists catch, tag and release 121 trout into a lake. The next day they catch and release 48 trout, of which 22 h
RideAnS [48]

Answer:

264.

Step-by-step explanation:

Let x represent the number of trout in the lake.

We have been given that a group of naturalists catch, tag and release 121 trout into a lake. The next day they catch and release 48 trout, of which 22 had been tagged.

Using proportions, we will get:

\frac{\text{Total trouts}}{\text{Tagged trouts}}=\frac{48}{22}

\frac{x}{121}=\frac{48}{22}

\frac{x}{121}*121=\frac{48}{22}*121

x=\frac{24}{11}*121

x=24*11

x=264

Therefore, there would be approximately 264 trout in the lake.

8 0
3 years ago
Read 2 more answers
Dentify the percent, amount, and base in this problem. 75% of what number is 30?
anastassius [24]

Answer:

40

Step-by-step explanation:

This is essentially just (4/3), or \frac{3}{4}^{-1}. (4/3)*30 = 40, so our answer must be 40. Just to check, taking 75 percent of 40, we indeed get 30!

7 0
3 years ago
Read 2 more answers
A wheelchair ramp is in the shape of a triangular prism has a base area of 37.4 yd.² and a height of 5 yards find the volume of
scoundrel [369]
We know that

[volume of the ramp]=[area of the base]*height 
area of the base=37.4 yd²
height=5 yd
so
[volume of the ramp]=[37.4]*5----> 187 yd³

the answer is
the volume of the ramp is 187 yd³
6 0
3 years ago
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