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3 years ago

Which of the following equations has a solution of x = -5?

Mathematics

2 answers:

polet [3.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

16(-5) - 7 = 11(-5) - 32

-80 - 7 = -55 - 32

-87 = -87

-4(-5) - 10 = 2(-5) + 20

-30 ≠ 10

dusya [7]3 years ago

5 0

Answer:

c. Both A and B

Step-by-step explanation:

Let's solve the equations to find out.

Equation A

16x - 7 = 11x - 32

5x - 7 = -32

5x = -25

x = -5

So, Equation A has a solution of x = -5.

Equation B

-4x - 10 = 2x + 20

-6x - 10 = 20

-6x = 30

x = -5

And so does Equation B.

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The scale on a map is 55 cm: 88 km. If the distance between two cities is 5656 km, how far apart in cm are the two cities on the

Alinara [238K]

Answer:

3,535 cm

Step-by-step explanation:

55cm=88km

Let's make that "one unit" - 55cm=1 unit. How many units are in the distance 5656km?

5656km/88km=64.2727... units.

55cmx64.2727... = 3,534.999 cm (depending on what your teacher requires, we can probably round to 3,535).

Therefore, we know that the two cities are 3,535 cm apart on the map.

6 0

2 years ago

Read 2 more answers

What are three powers that have values greater than 500 and less than 550

igomit [66]

Solution:

The three powers whose value is greater than 500 and less than 550 can be find by following procedure.

We will solve this problem by Hit and trial method by finding the squares, cubes, fourth power, Fifth Power,...etc. of different natural numbers.

23²= 529

8³ = 8 × 8 × 8 =512

$2^8=512$

The three powers are →→→Eighth power of 2, Square of 23, and Cube of 8.

8 0

4 years ago

Read 2 more answers

Please answer correctly !!!! Will mark BRAINLIEST !!!!!!!

Reika [66]

Answer:

g(n) = $\frac{11+5n}{3}$

Step-by-step explanation:

Given

3m - 5n = 11

Rearrange making m the subject

Add 5n to both sides

3m = 11 + 5n ( divide both sides by 3 )

m = $\frac{11+5n}{3}$ , thus

m = g(n) = $\frac{11+5n}{3}$

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3 years ago

I will mark you brainlest!

Aleksandr-060686 [28]

Answer:

46 in²

Step-by-step explanation:

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3 years ago

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Help me answer this please!!! i will mark you brainliest

goldfiish [28.3K]

Answer:

363 ft.

Step-by-step explanation:

To calculate the base side which is b we use the trigonometric identity called cosine.

$cos \theta=\frac{base}{hypotenuse} \\\\cos25 = \frac{b}{400}\\\\b=400*cos 25\\b=400*0.906\\b=362.5\ ft$

Since we the answer to the nearest whole number it would be b = 363 ft.

4 0

3 years ago