Ask question

Ask question

All categories

wolverine [178]

4 years ago

9

Write a variable expression for 3 times the sum of a number and 5.

2 answers:

AysviL [449]4 years ago

8 0

The expression is C

snow_tiger [21]4 years ago

5 0

Answer:

B) 3x+5

Step-by-step explanation:

Let's suppose that x is equal to the sum of a number. That means, that 3x needs to be somewhere in the variable equation. "And 5", means to add, so +5 also needs to be somehwere in the equation. Giving you 3x + 5 as the answer. Now you might be thinking, "But what about C? Isn't it basically the same answer as B?" The answer to THAT question is NO. For it to be the same as B, you would have to get rid of the parenthesis. This is because when there's a parenthesis, it means that it is the first thing you have to do in the equation. But that is not what we want. We do not want the sum of a number to be added to 5. We want it to be multiplied by 3. So that is why C is the not the same as B. B is yoir correct answer.

You might be interested in

Find the measures of angle b

Rasek [7]

Answer:

142

Step-by-step explanation:

The line underneath the straight angle is a straight line, meaning it is 180 degrees. <em>180-38= 142</em>

7 0

3 years ago

Read 2 more answers

Horace is riding his bike on a bike path. Horace's bike got a flat tire 3/4 of the way down the path and he had to stop. How far

mixas84 [53]

The distance travelled before developing a flat tire illustrates multiplication of fractions

Horace rode a distance of $\frac {9}{16} mile$ before having a flat tire

From the complete question, the length of the path is given as

$Length=\frac 34\ mile$

The fraction of distance (d) traveled before having a flat tire is:

$d=\frac 34$

So, the distance (D) travelled is:

$D=d \times Length$

This gives

$D= \frac 34 \times \frac 34\ mile$

Rewrite as:

$D= \frac {3 \times 3}{4 \times 4} mile$

$D= \frac {9}{16} mile$

Hence, Horace rode a distance of $\frac {9}{16} mile$

Read more about multiplication of fractions at:

brainly.com/question/9281754

3 0

3 years ago

True or False: Angles. Only 3 questions you need to answer! Please help :/

spayn [35]

Answer:

false in all cases

Step-by-step explanation:

1) they are not supplementary ,cuz sum is not 180

2) false,cuz sum is not 90°

3) measure of AOB is not 60° and OC not bisecting them

4) measure of AOB is not 60° and OB not bisectijg AOC

✌️:)

5 0

3 years ago

What is the measure in radians for the central angle of a circle whose radius is 9 cm and intercepted arc length is 7.2 cm

Oksana_A [137]

Answer: 0.8 radians

Step-by-step explanation:

To solve this exercise you must apply the formula shown below:

$S=r\theta$

Where S is the arc lenght, r is the radius of the circle and $\theta$ is the central angle in radians.

Solve for the central angle:

$\theta=\frac{S}{r}$

Now, when you susbtitute the value of the arc length and the radius, you obtain that the central angle is:

$\theta=\frac{7.2cm}{9cm}=0.8radians$

4 0

4 years ago

Read 2 more answers

How many kilometers are equivalent to 770 meters?

Crazy boy [7]

<span>kilo m = 1000 millimeters </span><span />

4 0

4 years ago

Read 2 more answers