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3 years ago

Which of the following best describes the expression 3x + 2y + 8z?

Mathematics

2 answers:

Evgesh-ka [11]3 years ago

6 0

The sum of 3 products...there r 3 terms

Margaret [11]3 years ago

3 0

The expression above is composed of 3 terms which are: 3x, 2y, and 8z. All of the terms are the product of two items. The first term is a product of 3 and x. The second is a product of 2 and y. Lastly, the third is a product of 8 and z.

<span>Thus, the expression is a sum of three products and there are only three terms. This answer is the second among the four choices. </span>

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What is a fact family? (Saying "it's a family of facts" will not be accepted")

Mrac [35]

Answer: Fact families are 3 numbers that make up a set of related math facts

Step-by-step explanation:

.An example of a fact family for multiplication and division is 2, 3, and 6: 2 X 3 = 6, 3 X 2 = 6, 6 2 = 3, and 6 3 = 2.

7 0

2 years ago

Read 2 more answers

X subtract 9 equals 3 / 5X

Korvikt [17]

Answer:

$x=22\frac{1}{2}=22.5$

Step-by-step explanation:

$x-9=\frac{3}{5}x$

First, lets get rid of the fraction. I did this by multiplying both sides by $5$ .

$5(x-9)=5(\frac{3}{5}x)\\5x-45=\frac{5}{1} *\frac{3}{5}x\\5x-45=\frac{15}{5}x\\5x-45=3x$

We want to isolate $x$ on one side of this equation. Let's put any values with $x$ on one side of the equation, and normal integers on the other.

$2x=45$

Divide both sides by $2$ .

$x=\frac{45}{2}$

If your teacher wants you to leave your final answer as an improper fraction, your final answer is this. If they want it to be a mixed number or decimal, your final answer will be:

$x=22\frac{1}{2}=22.5$

7 0

3 years ago

Solve the equation for y.<br>28 = 24x – 7y

spin [16.1K]

28 = 24x -7y

-24x + 28 = -7y

y = 24/7x + 4

6 0

3 years ago

Sadie made a rectangular cake. If she wants to cut it into 1/8 portions,how many portions can she cut?

amid [387]

Answer:

Step-by-step explanation:

If each portion is 1/8 of the cake, there are 8 equal-size portions. That is what the denominator of the fraction means.

3 0

3 years ago

If a jet flies at a speed of 600 km/h, how many meters does it fly in 10 seconds? There are 1000 meters in 1 km.

nydimaria [60]

it flies 1666.67 meters in 10 seconds.
Speed = 600km/h
1km = 1000m
1hour = 3600 sec
convert speed in km/h to m/s
600 x 1000/3600 = 6000/36 = 166.667 m/s
Now this speed is for per sec, in 10 sec = 166.667 x 10 = 1666.67m

3 0

3 years ago