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Ivan
3 years ago
10

Solve the equation by using Properties of Equality 5x-10=20

Mathematics
2 answers:
pantera1 [17]3 years ago
5 0

Answer:

5x-10=20

5x=20-10

x=10:5

x=2

Pie3 years ago
3 0

Answer:

x = 6.

Step-by-step explanation:

5x - 10 = 20

5x - 10 + 10 = 20 + 10

5x = 30

5x/5 = 30/5

x = 6.

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The velocity of a car over five hours is given by v(t)=60ln(t+1),0≤t≤5 in kilometers per hour. What is the total distance travel
algol [13]

Step-by-step explanation:

as the velocity is not constant over time, we actually have to integrate v(t) over the interval 0<=t<=5 to get the distance.

v(t) = 60×ln(t + 1)

V(t) = 60 × integral(ln(t + 1)) between 0 and 5.

integral(ln(t + 1)) = (t + 1)ln(t + 1) - t + C

V(t) = 60 × ((t + 1)ln(t + 1) - t + C)

the distance traveled between t = 0 and t = 5 is then

60 × ((5 + 1)ln(5 + 1) - 5 + C) - 60 × ((0 + 1)ln(0 + 1) - 0 + C) =

= 60×(6ln(6) - 5 + C) - 60×(1ln(1) + C) =

= 60×(5.750556815... + C) - 60×C =

= 60×5.750556815... = 345.0334089... ≈ 345 km

7 0
2 years ago
Hypotenuse of triangle with sides of 36 and 39
worty [1.4K]

Answer: The hypotenuse is 53 (approximately)

Step-by-step explanation: In this question we shall apply the Pythagoras theorem which states that;

AC^2 = AB^2 + BC^2

Where AC is the hypotenuse and AB and BC are the two other sides. Having been given that the two other sides are 36 and 39 units respectively, the hypotenuse is now,

AC^2 = 36^2 + 39^2

AC^2 = 1296 + 1521

AC^2 = 2817

Add the square root sign to both sides of the equation

AC = 53.0754

Therefore the hypotenuse is approximately 53 units.

8 0
3 years ago
Jane does a total of 75 push-ups each week. How many push-ups will Jane do in the 12 weeks? (Show your work).
dedylja [7]

Answer:

900 push-ups

Step-by-step explanation:

75 push-ups in one week

In 12 weeks = 75 × 12 = 900 push-ups

<em>PLEASE DO</em><em> </em><em>MARK ME</em><em> </em><em>AS BRAINLIEST</em><em> </em><em>IF MY</em><em> </em><em>ANSWER IS</em><em> </em><em>HELPFUL</em><em> </em><em>:</em><em>)</em><em> </em>

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3 years ago
four friends were making cards to sell at the holiday sale.each friend made 9 cards.they put all their cards together and they b
sveta [45]

Answer:

6 bundles

Step-by-step explanation:

Each person made 9 cards

and there are 4 persons

Hence, the total number of cards is the multiplication of these. So

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8 0
3 years ago
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B=0.7x+75
124<0.7x+75
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