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4 years ago

Pick the expression that matches this description:

Mathematics

1 answer:

inysia [295]4 years ago

4 0

Answer: Choice D, -5x^3 + 8

A binomial consists of two terms being added or subtracted. The two terms are -5x^3 and 8. The term -5x^3 has a leading coefficient -5 and exponent 3. The largest exponent determines the degree of the polynomial. The 8 is constant as there are no variables attached or multiplying with it.

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Two airplanes are carrying food and medical supplies to a country in need. One airplane is carrying 63 meals and 57 medical kits

Tju [1.3M]

Answer:

63m + 57k = 714 ____________ (1)

78m + 57k = 789 ____________(2)

The price of one meal is $5

Step-by-step explanation:

Let the price of one meal be m.

Let the price of one medical kit be k.

One airplane is carrying 63 meals and 57 medical kits and the total cost for those supplies on that airplane is $714.

This means that:

63m + 57k = 714 ____________ (1)

The other airplane is carrying 78 meals and 57 medical kits and the total cost for the supplies on that airplane is $789.

This means that:

78m + 57k = 789 ____________(2)

We now a system containing two linear equations that can be used to solve to problem:

63m + 57k = 714 ____________ (1)

78m + 57k = 789 ____________(2)

To find the price of one meal, we subtract equation (1) from (2) and simplify:

78m + 57k = 789

<u>- 63m + 57k = 714 </u>_

15m = 75

=> m = 75 / 15 = $5

The price of one meal is $5

6 0

3 years ago

Cathan and Jakove went out to eat, and the bill for their food was $24.50. If theyleft their server a 20% tip, what was the tota

Strike441 [17]

$\begin{gathered} \text{The total cost of the experience is } \\ Bill+(Bill\cdot\frac{20}{100}) \end{gathered}$ $\begin{gathered} \text{Then, the cost of the experience is } \\ 24.50+(24.50\cdot\frac{20}{100})=24.50+(24.50\cdot0.2) \\ =24.50+4.9 \\ =29.4 \end{gathered}$

And the cost is $29,40

6 0

1 year ago

How do you count in grams

Ahat [919]

Here, hopefully this picture cane help

8 0

3 years ago

Area = 120 units squared <br> Base = 8 units <br> Length = ? (Include the units in your answer)

Vesnalui [34]

Answer:

Step-by-step explanation:

Okay, so we know that Base*Length=Area, so we just have to divide the area by the base, so the formula here is Area/Base=Length.

That would get us 120/8=Length,

and if we just divide 120 by 8 we get 15, so the length is 15

4 0

3 years ago

What is the quotient (2x2 + 10x + 12) ÷ (x + 3)?

tamaranim1 [39]

We have 2( x^2 + 5x + 6) ÷ (x + 3) = 2(x^2 + 3x + 2x + 6) ÷ (x + 3) = 2[ x( x + 3) + 2( x + 3)] = 2( x+ 3 )( x + 2 ) ÷ ( x + 3 ) = 2( x + 2 ) = 2x + 4.

5 0

4 years ago