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arsen [322]
3 years ago
8

Find the sum of 10x2 – 10x – 6 and x + 6.

Mathematics
1 answer:
lana [24]3 years ago
6 0
I highly recommend you use photomath for this. but i have the answer!

26-16x is the answer
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You are going to run at a constant speed of 7.5 miles per hour for 45 minutes. You calculate the distance you will run. What mis
Tatiana [17]
We are given that:
speed = 7.5 miles/hour
time = 45 minutes

We can note that the units of time are not the same (hour for speed and minutes for time that you will run). Therefore, the most common mistake that would be done in this case is to calculate the distance without converting the units to be consistent with one another.

Wrong solution:
speed = 7.5 miles/hour
time = 45 minutes
Distance = 7.5 * 45 = 337.5 miles

Correct solution:
speed = 7.5 miles/hour
time = 45 minutes = 0.75 hour
Distance = 7.5 * 0.75 = 5.625 miles

Hope this helps :)
7 0
4 years ago
Read 2 more answers
Decrease £14120 by 4%
Vlad [161]

Answer:

\mathrm{\£13555.20}

Step-by-step explanation:

14120 \times (1-4\%)

14120 \times (1-4/100)

14120 \times (1-0.04)

14120 \times 0.96

=13555.2

5 0
3 years ago
Read 2 more answers
Two bags of cement and three bags of sand weigh 68 lbs. Three bags of sand weigh 60 lbs. All bags of cement weigh the same and a
madam [21]

Answer: 4:20

Step-by-step explanation:

60 lbs can be divided into three groups, in this case the bags of sand, so 60 divided by 3 is 20.

Now you have the 8 lbs left. It gets divided into two groups/bags so you would do 8 divided by 2 is 4.

Then for your ratio it is cement to sand which is 4:20. You can write the ratio however way you want or what is required by the question.(fraction bar, ‘to’, or colon ‘:’ )

Hope this helps!

6 0
3 years ago
Carl is standing at the top of 35 Ft cliff looking down at a rock for motion in the sea. He estimates the angle of depression is
Liula [17]

The horizontal distance between Carl and the rock at sea is approximately 60.62ft.

Data;

  • Angle = 30 degree
  • Opposite = 35
  • Adjacent = x

<h3>Trigonometric Ratio</h3>

Given the angle of depression from his point to the sea, we can use trigonometric ratio to calculate for the horizontal distance from his location to the bottom of the sea.

SOHCAHTOA

Since we have the value of angle and opposite and we need to calculate the adjacent side of the right-angle triangle, we can use the tangent of the angle to this effect.

Tan\theta = \frac{opposite}{adjacent} \\tan 30 = \frac{35}{x}\\ x = \frac{35}{tan30}\\ x = 60.62ft

The horizontal distance between Carl and the rock at sea is approximately 60.62ft.

Learn more on trigonometric ratio here;

brainly.com/question/12172664

7 0
2 years ago
What is the quotient of 20 and n
Tpy6a [65]
N
8
→
I used
n
as the unknown number
Explanation:
The quotient is the result of division between two numbers.
The quotient of a number (I used
n
) and
8
would be
n
8
6 0
3 years ago
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