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3 years ago

Any one help me with this plsss and ni links plss!!

Mathematics

1 answer:

Bas_tet [7]3 years ago

4 0

Answer:

6. D.

7. F.

8. A.

9. B.

10. C.

Step-by-step explanation:

6. 9 + (12 - 10)

12 - 10 = 2

9 + 2 = 11

7. (20 - 15) x 2

20 - 15 = 5

5 x 2 = 10

8. 10 ÷ 5 + 7

10 ÷ 5 = 2

2 + 7 = 9

9. 6 + 2 x 3

2 x 3 = 6

6 + 6 = 12

10. (2 x 4) + 8

2 x 4 = 8

8 + 8 = 16

Let me know if this helps!

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I need help to solve it

Sidana [21]

Answer:

She will earn £9.01 per hour after the pay rise

Step-by-step explanation:

Here, we want to calculate a value, given the percentage of the pay rise

From the question, the percentage is 6%

The pay rise is thus;

8.50 + 6% of 8.50

= 8.50 + (6*8.5)/100

= 8.50 + 0.51

= £9.01

4 0

3 years ago

HELP MEHHHHHHHH

yKpoI14uk [10]

Answer:

The correct option is;

B. 50 km/h

Step-by-step explanation:

The information given in the question are;

The distance between the two cities = 140 km

The direction of motion of the first car = From A to B (left)

The direction of motion of the second car = From B to A

The time after which both cars meet = 1 hour

The time duration it takes after both cars meet for the second car to reach A = 35 minutes

The total time taken by the second car from city B to city A = The time it takes to meet the first car + The time it takes after meeting the first car to reach city A

∴ The total time taken by the second car from city B to city A = 1 hour + 35 minutes = 60 minutes + 35 minutes = 95 minutes

95 minutes = 95/60 hours = 1⁷/₁₂ hours = 1.58 $\bar 3$ hours

The speed of the second car = Distance/Time = 140 km/(1.58 $\bar 3$ hours) ≈ 88.42 km/h

Therefore, let the distance from A of the point the first car meet the second car = x

Therefore, we have;

The distance from B of the point both cars meet = (140 - x) km

Given that both cars meet after one hour, we have;

The distance travelled by the second car coming from city B, after one hour = (140 - x) km = Speed of the second car × 1 hour

88.42 km/h × 1 hour = 88.42 km = (140 - x) km

x = 140 - 88.42 ≈ 51.58 km

The distance from A of the point the first car meet the second car = x = 51.58 km

The speed of car A = (The distance from A of the point the first car meet the second car)/(Time it takes both cars to meet)

∴ The speed of the first car = 51.58 km/(1 hour)

The speed of the first car = 51.58 km/h ≈ 50 km/h (Rounding up to the nearest 10th).

5 0

3 years ago

the number of flu cases incressed by 40% each week there were 3,000 during the first week of January how many people were affect

sleet_krkn [62]

I think the answer would be 4200

6 0

3 years ago

Sam and Annika ride their bikes to school. Sam rides his bike (K )kilometers. Annika rides her bike two less than four times as

Gekata [30.6K]

S=k, a=4k-2

Annika rides her bike so she must travel some positive distance, ie a>0 so:

4k-2>0

4k>2

k>1/2 and that k is how far Sam rode, so Sam must ride his bike more than 1/2 kilometer.

7 0

4 years ago

he graphed line shown below is y = 3 x minus 1. On a coordinate plane, a line goes through (0, negative 1) and (1, 2). Which equ

AysviL [449]

Answer:

y + 1 = 3x

Step-by-step explanation:

The graphed line is y = 3x - 1

The options given to us are

y + 1 = 3x

y = -3x + 1

y = 3x + 1

y - 3x = -3

Consider the first equation:

y + 1 = 3x

Substitute (0,-1) into the equation:

-1 + 1 = 3(0)

0=0

Substitute (1,2) into the equation:

2+1 = 3(1)

3 = 3

Thus the equation holds true for the given points.

Rearrange the equation

y + 1 = 3x

y = 3x - 1

As it is the same equation which was initially graphed, both of these lines will be same and overlap each other, resulting in infinite number of solution

7 0

4 years ago

Read 2 more answers