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4 years ago

How do you solve 5(3x + 4 - x)

Mathematics

1 answer:

Ad libitum [116K]4 years ago

5 0

Answer:

10x + 4

Step-by-step explanation:

Whenever you do situation like this you first have to do distributive property. 5 * 3x = 15x. 5 * 4 = 20. 5 * -x = -5x. Next, combine all like term. 15x - 5x = 10x. Finally, just place them together. 10x + 4.

Done

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77%<br> Calculate the area of this triangle.<br> 14 cm<br> 11 cmi<br> 18 cm

RideAnS [48]

Answer:

A = 99 cm²

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = $\frac{1}{2}$ bh ( b is the base and h the perpendicular height )

Here b = 18 and h = 11 , then

A = $\frac{1}{2}$ × 18 × 11 = 9 × 11 = 99 cm²

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3 years ago

the produce department of a grocery store sold 288 pounds of tomatoes. the weight represented 72% of the shipment the store rece

Shtirlitz [24]

207.4 pounds originally was received

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4 years ago

A charter airline finds that on its Saturday flights from Philadelphia to London, all 120 seats will be sold if the ticket price

Nataliya [291]

Answer:

a) $P=3(120-s)+200$

b) $215 \leq P \leq 290$

Step-by-step explanation:

For this case we can use a linear model to solve the problem.

s) Create an equation to express the increase on the price tickets and the number of seats sold

$s$ number of seats, if w analyze the info given the number of seats after increase the price is given by $120-s$ .

And let P the price for the ticket. So after the increase in ticket price the expression for the increase is P-200.

We have an additional info, for each increase of $3 the number of setas decrease 1. And the equation that gives to us the price change in terms of the increase of price is:

$P-200=3(120-s)$

So then our linear equation is given by:

$P=3(120-s)+200$

b) Over a certain period, the number of seats sold for this flight ranged between 90 and 115. What was the corresponding range of ticket prices?

So for this case we just need to replace the limits into the linear equation and see what we got:

$P_L=3(120-90)+200=290$

$P_U=3(120-115)+200=215$

So the corresponding range of ticket prices is:

$215 \leq P \leq 290$

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3 years ago

Given P(-7,3,-7) and Q(-4,-3,-9), find the midpoint of the segment PQ

Alona [7]

Answer:

The coordinates of the midpoint of the segment are (-5.5,0,-8)

Step-by-step explanation:

In this question, we are tasked with calculating the midpoint of the segment PQ.

To calculate this, we employ the use of a mathematical formula as follows;

The coordinate of the midpoint are = {(x1+x2)/2, (y1+y2)/2 , (z1+ z2)/2}

Thus we have;

{(-7-4)/2, (3-3)/2 , (-7-9)/2} = (-11/2, 0/2, -16/2)

= (-5.5,0,-8)

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3 years ago

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Find the value of x. please helpp

SIZIF [17.4K]

Answer:

Step-by-step explanation:

given 2 secants drawn from an external point to the circle , then

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9(11 + 3x) = 10(12 + 2x) ← distribute parenthesis on both sides

99 + 27x = 120 + 20x ( subtract 20x from both sides )

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7x = 21 ( divide both sides by 7 )

x = 3

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2 years ago

Read 2 more answers