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zlopas [31]
3 years ago
5

Mentally determine the value of x that makes each equation true. 2(x−1)=10

Mathematics
1 answer:
alexdok [17]3 years ago
8 0

Answer:

Step-by-step explanation:

Divide both sides by 2

x - 1 = 5

Add 1 to both sides

x - 1 + 1 = 5 + 1

Combine

x = 6

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Factor the trinomial. p2 - 4p - 5<br> What is the a, b and c?
Mademuasel [1]

Answer:

(p - 5)(p + 1)

Step-by-step explanation:

Given

p² - 4p - 5

Consider the factors of the constant term (- 5) which sum to give the coefficient of the x- term (- 4)

The factors are - 5 and + 1 , since

- 5 × + 1 = - 5 and - 5 + 1 = - 4, then

p² - 4p - 5 = (p - 5)(p + 1) ← in factored form

The standard form of a trinomial is

ax² + bx + c ( a ≠ 0 )

p² - 4p - 5 ← is in standard form

with a = 1, b = - 4 and c = - 5

3 0
3 years ago
Divide 5/6 by negative 2/3
ohaa [14]

Answer:

-1.25 :)

Step-by-step explanation:

8 0
3 years ago
Please help asap 25 pts
Ulleksa [173]
The answer is A.

First we substitute 8 into the given equation.

s = 10 \sqrt{4(8)} +15

Multiply 8 and 5, then find the square root of 40. Finally multiply it by 10.

s = 10 \sqrt{40} +15

s = 63.245 +15

Then add 15.

And the answer will be  78.245.

Now the question says that s is in thousands, so the real answer would be about 75,000.
4 0
3 years ago
Find the percentage decrease in price from £34 to £15
Ksivusya [100]

Answer:

answer: 19 hope this answer helps

3 0
2 years ago
If Noah ran 2 1/2 miles in 3/5 How fast, in miles per hour, did he run?
Olegator [25]
To calculate the speed of each one we proceed as follows:
speed=distance/time
a] Noah's speed:
distance=2.5 miles
time=3/5 hours

speed=(2 1/2)/(3/5)
=(5/2)/(3/5)
=5/2×5/3
=25/6
=4 1/6 mi/hr

Emily's speed
distance=3 3/4 miles
time=5/6 hour
thus
speed=(3 3/4)/(5/6)
=15/4)/(5/6)
=15/4×6/5
=4 1/2 mi/hr

Anna's speed:
distance=3 1/3 miles
time=3/5
speed=(3 1/3)/(3/5
=(10/3)/(3/5)
=10/3×5/3
=5 5/9 mi/hr

Anna was the fastest
4 0
3 years ago
Read 2 more answers
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