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4 years ago

Help me with this question! Anybody. {will receive 15 pts.}

Mathematics

1 answer:

Kryger [21]4 years ago

8 0

Answer:

The answer is 5.

Step-by-step explanation:

5+(-9) or

5-9=-4

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Question 5 of 10

horsena [70]

Answer:

Step-by-step explanation:

Parallel lines have the same slope, so the slope of the line we need to find is 5.

$y+1=5(x+6) \\ \\ y+1=5x+30 \\ \\ y=5x+29$

8 0

2 years ago

Please help me ASAP!! Calling all experts, will give brainliest too!

den301095 [7]

The true statement is as follows:

The product 13 / 4 × 2 can be used to find the unit rate in cm per hour.

After one hour, the height of the candle will have decreased by 6 1 / 2 cm.

Rate is the ratio between two related quantities in different units.

The height of the candle decreases from 10 cm to 6 3 / 4 cm after burning for 1 / 2 hours.

6 3 / 4 cm = 27 / 4 cm

10 - 27 / 4 = 40 - 27 / 4 = 13 / 4 cm

Therefore, 13 / 4 cm of candles were lost in 1 / 2 hours.

Rate = 13 / 4 × 2 = 26 / 4 = 13 / 2 cm per hour

Therefore, the product 13 / 4 × 2 can be used to find the unit rate in cm per hour.

13 / 4 + 13 / 4 = 13 + 13/ 4 = 26 / 4 = 13 / 2 = 6 1 / 2 cm.

Therefore, after one hour, the height of the candle will have decreased by 6 1 / 2 cm.

learn more on rate here: brainly.com/question/18188023

5 0

3 years ago

The sum of the digits of a two digit number is 12. the difference of the digits is 2. find the number of the units digit is larg

ipn [44]

Solving simple equations
4n + 3 = 11

3 0

3 years ago

Determine the length of the hypotenuse in a right triangle with legs 5 inches and 12 inches

Alborosie

In a right angled triangle we can use Pythagoras theorem to determine third side in case two sides are given.

The formula of Pythagoras theorem is given by:

$x^{2} +y^{2} =z^{2}$

Where x , y and z are sides of triangle , z is hypotenuse.

Now we use this formula to find hypotenuse.

Plugging other two sides which are 5 in. and 12 in.

$5^{2} +12^{2} =z^{2}$

$25 +144 =z^{2}$

$169 =z^{2}$

Taking square root on both sides

square root of 169 is 13

so we have z=13

Hypotenuse is 13 inches.

7 0

3 years ago

Jeanne babysits for $6 per hour. She also works as a reading tutor for $10 per hour. She is only allowed to work 20 hours per we

Maru [420]

A) System of inequalities

Income from babysitting: 6x
Income from tutoring: 10y

Goal for this week: at least $ 75 => 6x + 10y ≥ 75
Number of hours: maximum $20 => x + y ≤ 20

x and y have to be zero or positvie => x≥0 and y ≥ 0

Answer of part A.

6x + 10y ≥ 75
x+y ≤ 20
x ≥ 0
y ≥ 0

Part B. Graph

The solution is a region closed by 4 lines and you can find it in the file attached.

In that graph:

1) the line x + y = 20 is the upper limit
2) the line 6x + 10 y = 75 is the lower incclined line
3) y = 0 is the botton horizontal line it is the x-axis
4) x = 0 is the left vertical line, in is the y-axis

Part C.

Use, for example the point (7,10).

It is in the region of the graph limited by the above equations.

It implies:

Number of hours worked = 7 + 10 = 17 which is less than 20.

Income: 6(7) + 10(10) = 42 + 100 = 142, which is greater than 75

Of course, both are greater than 0.

In this way we proved that the point (7,10) is a true solution for the model.

Download pdf

8 0

3 years ago