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satela [25.4K]
3 years ago
15

Plz help I will mark you brainlist plz help ​

Mathematics
2 answers:
lakkis [162]3 years ago
8 0

<u><em>Answer</em></u>

<em>1.) 50 mistakes per test</em>

<em>2.) 8 girls per group</em>

<em>3.) 27 pages per hour</em>

<em>4.) $1.30 per banana</em>

<em>5.) $0.50 per pencils</em>

<em>6.) 13 points per game</em>

<em>7.) $1.25 per cup of tea</em>

<em>8.) 65 liters per hour</em>

<em>9.) 25 calls per hour</em>

<em>10.) 35 words per minute</em>

<em>11.) 8 miles per liter of gas</em>

<em>12.) 0.4 eggs per day</em>

<em>13.) $28 per hour</em>

<em>14.) 3.5 miles per hour</em>

<u><em>Step-by-step explanation:</em></u>

<em>*Hope this helped*</em>

<em />

MArishka [77]3 years ago
5 0

Answer:

1.50 mistakes per test

2.8 girls per group

3.27 pages per hour

4.$1.30 per banana

5.$0.50 per pencils

6.13 points per game

7.65 liters per hour

8.25 calls per hour

9.35 words per minute

10.8 miles per liter of gas

11.0.4 eggs per day

12.$28 per hour

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Raymond uses the Venmo
Arisa [49]

Answer:

2.29

Step-by-step explanation:

2.95 plus 1.26 is 4.21, and 6.50 minus 4.21 is 2.29.

5 0
3 years ago
I really need help!!!
Zigmanuir [339]

Answer:

Pr = 6.67\%

Step-by-step explanation:

Given

n = 10 i.e. 10 people

Required

Probability of being next to each other

First, we calculate the total possible arrangements (without any restriction)

Total = n!

Total = 10!

If the three are to be next to each other,

First, we arrange the three

r_1 = 3!

Now, the 3 will be seen as 1; so, we have a total of 8 people i.e. (1 + 7 others)

The arrangement is:

r_2 =8!

So, the total arrangement, when they have to be next to one another is:

r = r_1 * r_2

r = 3! * 8!

The probability is:

Pr = \frac{r}{n}

Pr = \frac{3! * 8!}{10!}

Expand

Pr = \frac{3*2*1 * 8!}{10*9*8!}

Pr = \frac{3*2*1}{10*9}

Pr = \frac{6}{90}

Pr = 0.0667

Express as percentage

Pr = 0.0667 * 100\%

Pr = 6.67\%

8 0
2 years ago
Write the point slope form of an equation of the line through the points (-7,7) and (4,1)
Andre45 [30]
  • (-7,7)
  • (4,1)

Slope:-

  • m=1-7/4+7
  • m=-6/11

Equation in point slope form

  • y-7=-6/11(x+7)

Option A

8 0
2 years ago
Read 2 more answers
Today the ratio of Elinor's age to her mother's age is 3:8. After 15 years, the ratio will become 6:11. What is Elinor's age tod
amm1812
X=Elinor´s age today.
y=Mother´s age today.
(x+15)=Elinor´s age after 15 years.
(y+15)=Mohter´s age after 15 years.

We can suggest this systemen of equations:
x/y=3/8                                  ⇒x=3y/8
(x+15)/(y+15)=6/11              ⇒11(x+15)=6(y+15)

Finally, we´ll have the following system:
x=3y/8
11(x+15)=6(y+15)

We can solve this system of equations by substitution method:
11[(3y/8)+15)=6(y+15)
11[(3y+120)/8)=6y+90
33y+1320=8(6y+90)
33y+1320=48y+720
33y-48y=720-1320
-15y=-600
y=-600/-15
y=40

We find out the value of "x";
x=3y/8
x=3(40)/8
x=120/8
x=15

Answer: Elinor is 15 years old.
 
8 0
3 years ago
In the first quadrant, you start at (5,7) And move 2 units right and 2 units down What point will you end up on
AveGali [126]
Answer: (7,5)
Explanation:
5+2= 7
7-2= 5
(X,Y)
Left to right- the X axis, moving up 2 units so you add 2 to your x value which is 5.

Up and Down- the y axis, moving down 2 units so you subtract 2 from the y value, being 7.
8 0
3 years ago
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