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Natasha2012 [34]
3 years ago
6

A number plus 7 is at most 4 write this sentence as an inequality then solve the inequality

Mathematics
2 answers:
svet-max [94.6K]3 years ago
7 0
The answer should be something like -3
UNO [17]3 years ago
4 0
N+7≤4 is the sentence

N ≤-3 is the solved inequality
You might be interested in
Use area of squares to visualize Pythagorean theorem
sp2606 [1]

Answer:

A. 12 and 43

Step-by-step explanation:

Pythagorean theorem is given as = a^2 + b^2 = c^2

Where, a and b are the two legs of the right triangle, while c is the hypotenuse/longest leg of the triangle.

In the figure given, the side of the largest square = the hypotenuse of the triangle = c

While the side of the other squares = a and b respectively, of the triangle.

Area of square = s², where s is the side length of the square.

Since we are given that the area of the largest square = 55, this is also equivalent to c² in the Pythagorean theorem.

The side length of the largest square = √55 ≈ 7.4 = c

Therefore, to determine the area of the other squares, check the options given if they add up to give 55.

Option A: 12 + 43 = 55

Option B: 14 + 40 = 54

Option C : 16 + 37 = 53.

The correct possible areas of the smaller squares would be A. 12 and 43.

8 0
3 years ago
: Logan is driving a boat that has a speed of 18 mph in standing water (no current). She drives the boat up and down a river to
nadya68 [22]

Answer: the speed of the current is 6 mph

Step-by-step explanation:

Let x represent the speed of the current.

Logan is driving a boat that has a speed of 18 mph in standing water.

Assuming the current slowed down the boat while she was going up(upstream), it means that his total speed was (18 - x) mph

Also, if the current helped the boat while she was going down(downstream), it means that his total speed was (18 + x) mph

Time = distance/speed

The boat travels 4 miles each way. The time taken to travel upstream is

4/(18 - x)

Time taken to travel downstream is

4/(18 + x)

The round trip took 0.5 hour. It means that

4/(18 - x) + 4/(18 + x) = 0.5

Multiplying through by (18 - x)(18 + x), it becomes

4/(18 - x) + 4/(18 + x) = 0.5(18 - x)(18 + x)

4(18 + x) + 4(18 - x) = 0.5(18 - x)(18 + x)

72 + 4x + 72 - 4x = 0.5(324 + 18x -

18x - x²)

144 = 0.5(324 - x²)

144 = 162 - 0.5x²

0.5x² = 162 - 144

0.5x² = 18

x² = 18/0.5 = 36

x = √36

x = 6

8 0
3 years ago
As runners in a marathon go by, volunteers hand them small cone shaped cups of water. The cups have the dimensions shown. Abigai
nikklg [1K]

Answer:

25.14cm3

Step-by-step explanation:

4 0
3 years ago
LaShaundra is buying fence for two triangular sections of her garden.
mixas84 [53]

Answer: 80 feet.


Step-by-step explanation:

1. As you can see in the figure, triangle ABC and the triangle DFG are similar.

2. The scale of factor of triangle ABC to triangle DFG is the following:

sf=\frac{20ft}{4ft}\\sf=5ft

3. Therefore, the lenght of the side DG of the trinagle DFG is:

DG=5*AC\\DG=5*7ft\\DG=35ft

4. The perimeter of the triangle DFG is:

P_{DFG}=20ft+25ft+35ft=80ft

5. Therefore, she would need 80 feet of fence.


8 0
3 years ago
A woman traveled 2438.92438.9 miles in 1818 hours 2020 minutes. Find the average speed of her flight in miles per hour.​ (Change
ICE Princess25 [194]

Answer:

133.06 miles per hour

Step-by-step explanation:

Distance =2438.9 miles

Time=18 hours 20 minutes.

First we convert the time to hour

60 minutes = 1 hour

20 minutes=(20/60) hour=0.33

Therefore her time=18+0.33 hour=18.33hour

We are to determine the average speed of her flight in miles per hour.

rate=distance/time

=2438.9/18.33

=133.06 miles per hour

Her average speed is 133.06 miles per hour

4 0
4 years ago
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